Aortic body - Medicow
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Topic: Aortic body



  
 Dorlands Medical Dictionary
bodies of Arantius noduli valvularum semilunarium valvae aortae.
Lewy bodies concentrically laminated, round bodies found in vacuoles in the cytoplasm of some of the neurons of the midbrain in paralysis agitans.
Pappenheimer bodies basophilic iron-containing granules observed in erythrocytes in sideroblastic anemia, sickle cell anemia, and certain other conditions.
http://www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_b_17zPzhtm   (3375 words)

  
 [No title]
The aortic bodies seem to respond somewhat to changes in oxygen content such as are seen in anemia.
Aortic bodies are sensitive to  EMBED Equation.2  and  EMBED Equation.2 , but not pH.
Carotid bodies are sensitive to  EMBED Equation.2 ,  EMBED Equation.2 , and pH.
http://www.ursa.kcom.edu/Department/LectureNotes/Summer/ContRespiration.doc   (1625 words)

  
 Relative latency of responses of chemoreceptor afferents from aortic and carotid bodies -- Lahiri et al. 48 (2): 362 -- ...
Relative latency of responses of chemoreceptor afferents from aortic and carotid bodies
Relative latency of responses of chemoreceptor afferents from aortic and carotid bodies -- Lahiri et al.
microcirculatory impediments not generally present in the carotid body.
http://jap.physiology.org/cgi/content/abstract/48/2/362   (272 words)

  
 Respiratory modulation of carotid and aortic body reflex left ventricular inotropic responses in the cat -- Daly and ...
Subsequently, in a study of the reflexes from stimulation of the aortic bodies, the opposite effect was observed, that is, a positive inotropic response, and this, too, was dependent on the integrity of the sympathetic supply to the heart (Karim, Hainsworth, Sofola and Wood, 1980).
The method, however, did require temporal separation of the responses of the carotid bodies from those of the aortic bodies when left atrial injections of cyanide were used to excite the aortic chemoreceptors.
on stimulation of the carotid bodies, but in the present context their results are difficult to interpret in the absence of information on the concomitant respiratory responses in their experiments.
http://jp.physoc.org/cgi/content/full/509/3/895   (7604 words)

  
 Chapter 4
The afferent impulses from the carotid bodies travel in the glossopharyngeal (IXth cranial) nerve and those from the aortic bodies are conveyed by the vagus (Xth cranial) nerve.
The other set is the aortic baroreceptors located in the wall of the arch of the aorta (see diagram on cardiovascular reflex pathway).
The vasoconstriction in the contralateral, un-immersed hand and other parts of the body is due to the reflex action alone.
http://www.columbia.edu/~kj3/Chapter4.htm   (1939 words)

  
 Junaid Ahmad - Role of Nervous System on Rapid Control of Arterial Pressure -
The stimulus for this reflex is stretch in atria.
They respond to volume changes with vasodilatation in vessels before any major increase in pressure so when blood is injected in body, the room for this extra volume is made to compensate the pressure.
Aortic Baroreceptor - Hering's nerve - Glossophayngeal nerve - Medulla
http://www.geocities.com/jfvrtsj/writings/role_CNS_rapid_control_AP.html   (719 words)

  
 ATP is a key mediator of central and peripheral chemosensory transduction -- Spyer et al. 89 (1): 53 -- Experimental ...
of ATP from the carotid body (Gourine, Llaudet, Dale and Spyer,
ATP is involved in chemotransmission in the carotid body (Zhang et al.
Co-release of ATP and ACh mediates hypoxic signalling at rat carotid body chemoreceptors.
http://ep.physoc.org/cgi/content/full/89/1/53   (2959 words)

  
 [No title]
-peripherally it increases heart rate by stimulating the peripheral chemoreceptors of the carotid and aortic bodies.
http://soma.npa.uiuc.edu/labs/greenough/statements/rswain/hormones/042296.html   (427 words)

  
 The Control of Breathing in Clinical Practice* -- Caruana-Montaldo et al. 117 (1): 205 -- Chest
The peripheral arterial chemoreceptors consist of the carotid and aortic bodies.The physiologic significance of the aortic bodies in humans is difficult to determine but likely to be small: the carotid bodies appear to have preeminent importance.
Therefore, the carotid body is insensitive to conditions
response to hypoxemia; the remaining 10% is from the aortic
http://www.chestjournal.org/cgi/content/full/117/1/205   (8193 words)

  
 Diving Doctor - Diver Magazine September 2001
The peripheral chemoreceptors (carotid and aortic bodies) primarily respond to levels of oxygen in the blood.
A third way in which CO2 can accumulate in the body is if the work of breathing is increased.
There are two ways in which the PCO2 in the body can be increased.
http://divermag.com/archives/sept2001/divedoctor_sept01.html   (1422 words)

  
 Oxford University Press
Methods of eliciting reflexes from the carotid and aortic bodies
The peripheral arterial chemoreceptors are small organs, situated in the neck and chest, that play an important role in the control of the heart and circulation.
Stimulation of the chemoreceptors can occur as a result of changes in respiration, for example, when the body is partly deprived of oxygen.
http://www.oup.com/ca/isbn/0-19-857675-7   (363 words)

  
 Ventilatory Control During Wakefulness and Sleep -- Answer
B) Carotid and aortic bodies are peripheral chemoreceptors that are stimulated primarily by hypocapnia
The peripheral chemoreceptors are stimulated primarily by a low arterial oxygen tension (P
The carotid bodies are located bilaterally at the bifurcations of the common carotid arteries; the aortic bodies are situated anterior and posterior to the arch of the aorta and left main pulmonary artery.
http://www.medscape.com/content/2004/00/49/59/495921/ans2.html   (284 words)

  
 YMCA Scuba Currents Articles
The primary stimulus for respiration is increasing PCO2, which stimulates the peripheral chemoreceptors located in the internal carotid arteries (carotid bodies) and in the wall of the aortic arch (aortic bodies).
Most of us began our diving experience as skin divers…mask, snorkel, fins, a body of water and a curious mind.
Never practice breath-hold diving in any body of water without a knowledgeable observer.
http://www.ymcascuba.org/ymcascub/currnt29.html   (1888 words)

  
 BIO354 Exam4question
Describe in details, the role of respiratory center, chemoreceptor center in carotid bodies, aortic bodies and medulla oblongata in controlling respiration.
Explain the changes in our body that take place during hypoxia.
State the changes that take place in the above systems when PO2 drops and when PCO2 increases(8 points).
http://biology-web.nmsu.edu/kghoshroy/354Exam4question.html   (170 words)

  
 Dyspnea . Mechanisms, Assessment, and Management: A Consensus Statement -- 159 (1): 321 -- American Journal of ...
peripheral chemoreceptors in the carotid and aortic bodies (26).
It is a well-accepted clinical axiom that patients with COPD change body position to improve dyspnea.
mediated via peripheral chemoreceptors in the carotid body (136).
http://www.ajrccm.org/cgi/content/full/159/1/321   (10980 words)

  
 Resp-webpage\sect8
The carotid bodies are innervated by sinus nerves, branches of the glossopharyngeal (IX), and the aortic bodies are innervated by branches of the vagus (X).
The carotid bodies are responsible for about 80% of the ventilatory effects of hypoxia.
The carotid and aortic bodies are made up of blood vessels, structural supporting tissue and numerous nerve endings of sensory neurons of the glossopharyngeal (in carotid body) and vagus nerves (in aortic bodies).
http://www.medicine.mcgill.ca/physio/resp-web/sect8.htm   (1883 words)

  
 Re: Would inhaling increased amounts of O2 help during
Over time the body adapts to these conditions so that it is able to carry more oxygen in the blood.
When the athlete returns to sea level for a while their body will contain this extra haemoglobin giving them a legal performance advantage.
The other group of chemoreceptors are the peripheral chemoreceoptors.
http://www.madsci.org/posts/archives/2001-07/995401343.An.r.html   (939 words)

  
 My Sample Care Plan on Myocardial Ischemia
Due to this clacification, the carotid bodies are not able to sense the hearts full demand for oxygen.
As mentioned, there was a mild calcification present in my pt.'s aortic arch according to his chest x-ray.
According to my pt.'s chest x-ray, mild calcification of the aortic arch was present.
http://www.caring4you.net/careplan.html   (1834 words)

  
 [No title]
The aortic and carotid bodies, the \ldblquote hypoxic drive\rdblquote, are all the body has left to rely on for data.
Now, the patient must rely upon the peripheral chemoreceptors to tell the brain that there is a problem with hypoxemia and hypercapnea.
These receptors are the carotid and aortic bodies.
http://www.rollanet.org/~mhall/ClassNotes6/Cardio/Cardio-11-09-98.doc   (1644 words)

  
 Re: How does the brain detect changes in blood pH?
The neural mechanisms are better understood for the carotid bodies, which are easier to study because of their anatomical location, than for the aortic bodies.
See page 552 for more detailed explanation of innervation of carotid/aortic bodies; M.J.T.FitzGerald: Neuroanatomy, Basic and Applied.
Peripheral chemoreceptors in the carotid and aortic bodies detect the increase in acidity (i.e.
http://www.madsci.org/posts/archives/nov2000/974235896.Me.r.html   (737 words)

  
 Medical Neurosciences
There are chemoreceptors in the carotid and aortic bodies that affect respiration.
One (of several) explanations for this finding is that such a lesion “irritates” descending information from nucleus solitarius to the phrenic nucleus.
The afferent information from the carotid and aortic bodies travel in C.N.s IX (carotid body; cell bodies in INFERIOR GANGLION IX) and X (aortic body; cell bodies in INFERIOR GANGLION X).
http://www.neuroanatomy.wisc.edu/virtualbrain/BrainStem/11Solitarius.html   (1388 words)

  
 Regulation of Respiration
The second sensor is the peripheral chemoreceptor, which consists of afferent neurons monitoring the blood in the carotid and aortic bodies.
What is the term for the condition in which some of the blood in the pulmonary artery flows through a region of the lungs that is not ventilated?
What is the term for low levels of oxygen in the body?
http://courses.washington.edu/conj/respir/regulationRespir.htm   (914 words)

  
 Craniocervical Hydrodynamic Failure and NPH
Lastly the suboccipital cavernous sinus appears to have a barorecptor similar to the carotid and aortic bodies.
Many cultures in fact have used body modification including our own.
This keeps the brain one to two degrees cooler than the rest of the body, which makes it more efficient for ectothermic humans even during high endurance activities in hot weather.
http://www.chiroweb.com/archives/20/03/06.html   (3297 words)

  
 Measurement of synaptic vesicle exocytosis in aortic baroreceptor neurons -- Hay and Hasser 275 (2): 710 -- AJP - Heart ...
in aortic baroreceptor terminals was not affected by bath application
channels in vesicle exocytosis from aortic baroreceptor neurons,
Acute resetting of the carotid sinus baroreflex by aortic depressor nerve stimulation.
http://ajpheart.physiology.org/cgi/content/full/275/2/H710   (3657 words)

  
 Yale- Cranial Nerve 10, pg. 1
Provides general sensory information from the skin of the back of the ear and external auditory meatus, parts of the external surface of the tympanic membrane, and the pharynx.
Provides visceral sensory information from the larynx, esophagus, trachea, and abdominal and thoracic viscera, as well as the stretch receptors of the aortic arch and chemoreceptors of the aortic bodies.
http://info.med.yale.edu/caim/cnerves/cn10/cn10_1.html   (142 words)

  
 Central and Reflex Controls of CV System
these receptors are located at various sites in throughout the body - the reflexes work to control homeostasis
There are Reflexes - neural control mechanisms - which alter cardiac function and vasomotor tone
The carotid bodies are more sensitive to pO
http://www.elon.edu/shouse/physiology/physiol23/Lecture18.html   (280 words)

  
 e-Breathing.com: Information about the lungs, respiration and diseases of the lungs.
Chemoreceptors in the carotid and aortic bodies provide additional information to the integrating centers in the brainstem regarding peripheral levels of oxygen and carbon dioxide.
The carotid bodies are located at the branch point of the carotid arteries and the aortic bodies are found within the aortic arch.
Within each nasal cavity there is a swell body on the nasal fossae (ridges in the nasal epithelium) that, when engorged with blood, swells and decreases the flow of air on that side.
http://www.e-breathing.com   (1512 words)

  
 Untitled
The aortic and carotid bodies also seem sensitive.
Oxygen detection by aortic bodies and carotid bodies.
at carotid bodies and aortic bodies and found increased ventilation.
http://www.mrs.umn.edu/~goochv/HAP/lectures/resp/resp.html   (680 words)

  
 REGULATION OF RESPIRATION PAGE
The Aortic Bodies are supplied by the vagus nerve, the Carotid Bodies are supplied by the glossopharyngeal nerve.
3) Peripheral Chemoreceptors known as the Aortic Bodies in the aortic arch and the Carotid Bodies (by the carotid baroceptors) at the bifurcation of the carotid arteries in the neck monitor pO
Not until you get 650 nerve impulses/sec do the Carotid Bodies tell the brain to increase respiration rate.
http://faculty.etsu.edu/currie/respcontrol.htm   (1348 words)

  
 Lungs and air sacs (amphibia/reptiles/mammals)
Aortic bodies- sensitive to flow and changes in O
Carotid body- senses changes in PO (in carotid artery)
Change from positive pressure breathing in amphibia to negative pressure breathing in reptiles and mammals.
http://www.biology.ualberta.ca/courses.hp/zool340.hp/lec17.htm   (329 words)

  
 [No title]
Brophy et al observed Russell bodies in aortic specimens with AAA; and Russell bodies are associated with diseases of autoimmunity like Hashimoto's thyroiditis.
A Russell body is (in essence) a B-cell that has made so much IgG that it has choked on it!
MAGP-36 occurs in nature as a dimer; so we have carried out additional aortic extractions for this protein under reducing conditions.
http://www.columbia.edu/~mdt1/monjan96.html   (789 words)

  
 aortic bodies - OneLook Dictionary Search
Phrases that include aortic bodies: para aortic bodies
aortic bodies : The On-line Medical Dictionary [home, info]
aortic bodies : Dorland's Illustrated Medical Dictionary [home, info]
http://www.onelook.com/?w=aortic+bodies   (99 words)

  
 Para-Aortic Bodies Terms and Definitions at www.MedicalGlossary.org
Home > Anatomy > Endocrine System > Chromaffin System > Para-Aortic Bodies Terms and Definitions
Small masses of chromaffin cells found near the sympathetic ganglia along the abdominal aorta.
http://www.medicalglossary.org/chromaffin_system_paraaortic_bodies_definitions.html   (138 words)

  
 allkeynotes
Cooling the body from the core of the body
Chemoreceptors (in the medulla/aortic bodies/carotid bodies) are sensitive to the rise in the carbon dioxide level in blood.
The question will be about the size/shape of the particular organism or how its size/shape is adapted to its usually adverse surroundings.
http://www.mrothery.co.uk/exchange/allkeynotes.htm   (841 words)

  
 Respiratory Physiology (page 1)
The technique of cricoid pressure is based on the fact that the cricoid cartilage is a complete ring, which is used to compress the oesophagus behind it against the vertebral bodies of C5-6 to prevent regurgitation of gastric contents into the pharynx.
In addition, there are peripheral chemoreceptors located in the carotid and aortic bodies most of which respond to a fall in O
The other component of physiological shunt is from the thebesian veins, which drain some coronary blood directly into the chambers of the heart.
http://www.nda.ox.ac.uk/wfsa/html/u12/u1211_01.htm   (1240 words)

  
 Blood Gas Text
As blood circulates through the body, an opposite change occurs in the capillaries of the systemic circulation.
Special chemical receptors near the aorta and carotid arteries, called the aortic bodies and carotid bodies, are sensitive to an increase in carbon dioxide or acid concentration, or to a decrease in the pressure of oxygen (PaO2).
When these receptors sense acidity or low oxygen, they stimulate the brain respiratory center to increase the speed and depth of breathing.
http://www.madsci.com/manu/gas_gas.htm   (2322 words)

  
 aortic body (anatomy) - General Practice Notebook
efferent: modulate sensitivity to hypoxia by regulating blood flow through the bodies
The aortic bodies are supplied by fibres of the vagus nerve:
There are two types of cell within the aortic bodies:
http://www.gpnotebook.co.uk/cache/1409679417.htm   (171 words)

  
 Cardiovascular system III: Vessels VI. Homeostasis and cardiovascular function
Function: to monitor blood leaving the heart and supplying the entire body.
Modified neurons that detect a variety of stimuli, such as pressure and chemicals.
Determine if the blood has a high enough BP and is low in CO2.
http://clem.mscd.edu/~raoa/bio2320/vessel2/tsld025.htm   (65 words)

  
 Chapter 1: An Introduction to Anatomy and Physiology
ed.), baroreceptor reflexes, aortic sinus, carotid sinus, chemoreceptor reflexes, aortic bodies, carotid bodies, angiotensin II, renin,  ADH, erythropoietin, atrial natriuretic peptide
Name, locate and give the functions of the major blood vessels as described in “Major Blood Vessels of the Human Body”.
Discuss the major homeostatic mechanisms of blood flow and blood pressure control
http://www.ucalgary.ca/~rosenber/bloodvesselscirc.html   (176 words)

  
 Chronic Obstructive Pulmonary Disease (COPD) Course #949
Many lung lobules may be simultaneously affected as a result of many check-valve obstructions, as in bronchial asthma.
The other better-known cause of chronic lung disease is mucoviscidosis or cystic fibrosis, which produces thickened secretions via the endocrine system and throughout the body.
This condition may be obstructive, because of air trapping beyond an incomplete bronchial obstruction due to a foreign body or a neoplasm.
http://www.nursece.com/onlinecourses/949.html   (7613 words)

  
 Respiration2
impulses are transmitted to medulla via the the glossopharyneal nerve IX (carotid bodies) and the vagus nerve X (aortic bodies);
located in aortic (in aortic arch) and carotid bodies (carotid arteries);
sensitive to low p02 (carotid bodies) and increased [H+] (both receptors);
http://phclweb.wo.utoledo.edu/2620/Resp2.html   (779 words)

  
 The suboccipital cavernous sinus
Structurally it resembled the carotid and aortic bodies.
This finding, revealing yet another similarity between the petrous­cavernous ICA and the V
We confirmed that the vertebral nerve is not located above the level of the C-3 vertebra.[24,32­38]
http://www.c3.hu/~mavideg/jns/1-6-p2.html   (6189 words)

  
 Lecture Outline 15
Respiratory center then stimulates diaphragm and rib cage muscles to contract by nerve impulse.
Chemoreceptors in carotid bodies in carotid arteries and aortic bodies in aorta are mainly stimulated by changes in H+ concentration; these bodies communicate with respiratory center.
Respiration refers to complete process of supplying oxygen to body cells and ridding body of carbon dioxide.
http://www.mhhe.com/biosci/genbio/maderinquiry/lecture/lecture15.html   (1505 words)

  
 Control of heart rate
Eyes - Occulo Cardiac Reflex - Pressure over the eyes can cause bradycardia
Aortic and carotid Bodies chemoreceptors are sensitive to changes in the oxygen and carbon dioxide concentrations as well as pH.
Carotid sinus and aortic arch: increase in arterial blood pressure would stimulate baroreceptors that send impulses to the medulla oblongata to stimulate the CIC resluting in Bradychardia.
http://www.biotech.um.edu.mt/home_pages/chris/Basic%20Physiology/Basichtml/Heart22.htm   (172 words)

  
 Glomus cell - Wikipedia, the free encyclopedia
A glomus cell is a peripheral chemoreceptor, located in the carotid bodies and aortic bodies, that helps the body regulate breathing.
The glomus cell is not to be confused with the glomus body found in the dermis layer of the skin.
), the carotid bodies and the aortic bodies signal the medulla oblongata to increase the volume and rate of breathing.
http://en.wikipedia.org/wiki/Glomus_cell   (159 words)

  
 Repiratory Regulation
carotid bodies at the bifurcation of the common carotids and the aortic bodies along the aortic arch.
http://www.mtsu.edu/~jshardo/bly2020/respiratory/regulation_nonav.html   (163 words)

  
 4 Factors Contibuting to
How do ACh and epinephrine change cardiac contractility?
Mammalian kidneys are designed to reabsorb Na and retain it in body fluids
http://www.life.umd.edu/classroom/zool422/higgins/cardio3   (177 words)

  
 Control of respiration - Wikipedia, the free encyclopedia
These levels are sensed by chemoreceptors in the medulla oblongata for carbon dioxide, and the carotid and aortic bodies for oxygen.
Afferent neurons from the carotid bodies and aortic bodies are via the glossopharyngeal nerve (CN IX) and the vagus nerve (CN X), respectively.
However, when ventilation is increased (over 40 litres per minute), such as during heavy exercise, muscle activity becomes involved in expiration.
http://www.wikipedia.org/wiki/Control_of_respiration   (600 words)

  
 Aortic body - Wikipedia, the free encyclopedia
A paraganglioma is a tumor that may involve the aortic body.
The aortic body is one of several small cluster of chemoreceptors, baroreceptors, and supporting cells located along the aortic arch.
The medulla, in turn, regulates breathing and blood pressure.
http://en.wikipedia.org/wiki/Aortic_body   (122 words)

  
 XI. Splanchnology. 1F. The Chromaphil and Cortical Systems. Gray, Henry. 1918. Anatomy of the Human Body.
None have been found with the sympathetic ganglia associated with the branches of the trigeminal nerve.
Glomus Caroticum (Carotid Glands; Carotid Bodies)—The carotid bodies, two in number, are situated one on either side of the neck, behind the common carotid artery at its point of bifurcation into the external and internal carotid trunks.
Shaw, G.B. Stein, G. Stevenson, R.L. Wells, H.G. Reference > Anatomy of the Human Body > XI.
http://www.bartleby.com/107/277.html   (1900 words)

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