SEELEY'S ANATOMY+PHYSIOLOGY
12th Edition
ISBN: 9781260172195
Author: VanPutte
Publisher: RENT MCG
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Chapter 21.9, Problem 67AYP
Summary Introduction
To determine:
The location of chemoreceptors for O2, CO2, and pH level and study the effect when O2 level in the blood is decreased.
Introduction
Chemoreceptors are the specialized sensory receptors of the nervous system that transduce the chemical substances. These are located within medulla. Chemoreceptors detect the changes in level of O2,CO2, and pH in blood.
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Please help me with these questions, more than one answer may be correct for each:
1) The peripheral chemoreceptors associated with ventilation
A)
drive down respiration rate as [H+] increases
B)
are not associated with [CO2]
C)
are located in the alveoli of the lungs
D)
are located in the aortic and carotid bodies
E)
drive up respiration rate as [O2] decreases
2) Imagine you are designing a new diuretic (a drug that increases urine production). You are going to do this by blocking sodium reabsorption. In which section of the nephron would it be most effective to block sodium reabsorption if you want to produce more urine?
A)
the ascending loop of Henle
B)
The proximal convoluted tubule
C)
the collecting duct
D)
the distal convoluted tubule
E)
the descending loop of Henle
Regarding central chemoreceptors, if H+ ions are unable to cross the blood-brain barrier, how does the brain detect a change in the body's pH?
When compared to a blood sample from a normally breathing person, a person with pulmonary disease resulting in reduced
alveolar ventilation would show:
Select one:
Oa.
elevated plasma pCO2, increased plasma HCO3 and lower pH
O b
decreased plasma pCO2, decreased plasma HCO3 and lower pH
Oc.
elevated plasma pCO2, increased plasma HCO3 and higher pH
Od.
elevated plasma pCO2, decreased plasma HCO3 and lower pH
elevated plasma pCO2, decreased plasma HCO3 and higher pH
Chapter 21 Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
Ch. 21.1 - What is the difference between pulmonary and...Ch. 21.1 - Describe the five functions of the circulatory...Ch. 21.2 - Prob. 3AYPCh. 21.2 - Prob. 4AYPCh. 21.2 - Prob. 5AYPCh. 21.2 - Prob. 6AYPCh. 21.2 - Prob. 7AYPCh. 21.2 - Describe a capillary network. Where is the smooth...Ch. 21.2 - Prob. 9AYPCh. 21.2 - Prob. 10AYP
Ch. 21.2 - Prob. 11AYPCh. 21.2 - Prob. 12AYPCh. 21.2 - In which type of blood vessels are valves found?...Ch. 21.2 - Prob. 14AYPCh. 21.2 - Prob. 15AYPCh. 21.2 - Prob. 16AYPCh. 21.3 - Prob. 17AYPCh. 21.4 - Name the parts of the aorta.Ch. 21.4 - Name the arteries that branch from the ascending...Ch. 21.4 - Prob. 20AYPCh. 21.4 - Prob. 21AYPCh. 21.4 - Prob. 22AYPCh. 21.4 - Prob. 23AYPCh. 21.4 - Name the two types of branches arising from the...Ch. 21.4 - Prob. 25AYPCh. 21.4 - Prob. 26AYPCh. 21.4 - Prob. 27AYPCh. 21.5 - Prob. 28AYPCh. 21.5 - What veins collect blood from the heart muscle.Ch. 21.5 - Prob. 30AYPCh. 21.5 - Prob. 31AYPCh. 21.5 - Prob. 32AYPCh. 21.5 - Prob. 33AYPCh. 21.5 - Prob. 34AYPCh. 21.5 - Prob. 35AYPCh. 21.6 - Prob. 36AYPCh. 21.6 - Prob. 37AYPCh. 21.6 - Prob. 38AYPCh. 21.6 - Prob. 39AYPCh. 21.6 - Prob. 40AYPCh. 21.6 - Prob. 41AYPCh. 21.6 - Prob. 42AYPCh. 21.6 - Prob. 43AYPCh. 21.7 - Prob. 44AYPCh. 21.7 - Describe the total cross-sectional areas of the...Ch. 21.7 - Describe how the rate changes as blood flows...Ch. 21.7 - Prob. 47AYPCh. 21.7 - Prob. 48AYPCh. 21.7 - Prob. 49AYPCh. 21.7 - What is pulse pressure? How do stroke volume and...Ch. 21.7 - Prob. 51AYPCh. 21.7 - Prob. 52AYPCh. 21.7 - Prob. 53AYPCh. 21.7 - Prob. 54AYPCh. 21.7 - Prob. 55AYPCh. 21.7 - Prob. 56AYPCh. 21.7 - Prob. 57AYPCh. 21.8 - Prob. 58AYPCh. 21.8 - Prob. 59AYPCh. 21.8 - Prob. 60AYPCh. 21.8 - Prob. 61AYPCh. 21.8 - Prob. 62AYPCh. 21.9 - Prob. 63AYPCh. 21.9 - What are the two major control systems that...Ch. 21.9 - Prob. 65AYPCh. 21.9 - Elaborate on the adrenal medullary control...Ch. 21.9 - Prob. 67AYPCh. 21.9 - Prob. 68AYPCh. 21.9 - Prob. 69AYPCh. 21.9 - Prob. 70AYPCh. 21.9 - Prob. 71AYPCh. 21.9 - Prob. 72AYPCh. 21.9 - Prob. 73AYPCh. 21 - Prob. 1RACCh. 21 - Prob. 2RACCh. 21 - Prob. 3RACCh. 21 - Prob. 4RACCh. 21 - The structures that supply the walls of blood...Ch. 21 - Given these arteriae: (l) brailar (2) common...Ch. 21 - Prob. 7RACCh. 21 - A branch of the aorta that supplies the liver,...Ch. 21 - Prob. 9RACCh. 21 - Prob. 10RACCh. 21 - Blood returning fromthe arm to the subclavian vein...Ch. 21 - Given these blood vessels: (1) inferior mesenteric...Ch. 21 - Given these veins: (1) small saphenous (2) great...Ch. 21 - Prob. 14RACCh. 21 - Prob. 15RACCh. 21 - Veins a. increases their volume because of their...Ch. 21 - Prob. 17RACCh. 21 - Prob. 18RACCh. 21 - Prob. 19RACCh. 21 - Prob. 20RACCh. 21 - Prob. 21RACCh. 21 - Prob. 22RACCh. 21 - Prob. 23RACCh. 21 - Prob. 24RACCh. 21 - Prob. 25RACCh. 21 - Prob. 1CTCh. 21 - Prob. 2CTCh. 21 - Prob. 3CTCh. 21 - All the blood that passes through the aorta,...Ch. 21 - As blood vessels increase in diameter. the amount...Ch. 21 - A very short nursing student is asked to measure...Ch. 21 - Prob. 7CTCh. 21 - Prob. 8CTCh. 21 - Epinephrine causes vasodilation of blood vessels...Ch. 21 - Prob. 10CTCh. 21 - Prob. 11CT
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- List the factors that stimulate the Peripheral Chemoreceptors?arrow_forwardBelow is the equation that represents O2 binding to hemoglobin. Hb+4O2⇌Hb(O2)According to Le Chatelier’s principle, which form of the hemoglobin (Hb or Hb(O2)4) is predominant in the lungs where the partial pressure of oxygen is high? Explain. I need help answering thisarrow_forwardWhat are chemoreceptors and where are they located? Justify the function during an increase in blood CO2 levels.arrow_forward
- A decrease in arterial PO2 to 60mmHg will result in which of the following? a) Stimulation of peripheral chemoreceptors only and an increase in ventilation O b) Stimulation of central chemoreceptors only and a decrease in ventilation O ) Stimulation of central and peripheral chemoreceptors and an increase in ventilation d) Stimulation of central and peripheral chemoreceptors and a decrease in ventilationarrow_forwardWhat effect does hyperventilation have on blood pH and why? What simple measure can be used to correct the pH imbalance and how does it work? What effect would hyperventilation have on hemoglobin O2 saturation in a normal healthy individual? What effect would a PaO2 of 60 mmHg have on hemoglobin O2 saturation and why? (explain in terms of the O2-Hb dissociation curve)arrow_forwardDescribe the partial pressure gradients for O2 and CO2.arrow_forward
- As a result of the upper airway obstruction and subsequent ventilation-perfusion ratio, the parameters listed below change as follows:A. PA(o2) : ___increased; ___decreased; ____remained the sameB. PA(co2) : ___increased; ___decreased; ____remained the sameC. PC(o2) : ___increased; ___decreased; ____remained the sameD. PC(co2) : ___increased; ___decreased; ____remained the sameE. pH : ___increased; ___decreased; ____remained the samearrow_forwardwhat is the mechanism by which breathing contributes to the body's control of blood pH? Which set of chemoreceptors are primarily involved?arrow_forwardExplain why chemoreceptors are important for the regulation ofventilation.arrow_forward
- Explain how CO2 loading and O2 unloading are connected in systemic gas exchange. Make sure to discuss in terms of the Law of Mass Action. Also chloride shift. How does this allow the delivery of oxygen to match the metabolic rate of the tissues? Why would that be important?arrow_forwardWhere are central chemoreceptors and peripheralchemoreceptors? Which are most important for regulatingblood pH and CO2 level? How does this change duringintense exercise?arrow_forwardWhat effect do increased CO2 levels or decreased pHhave on ventilation? How does this change in breathingaffect blood pH?arrow_forward
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