This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following centers responds more strongly to high levels of CO2? a. Aortic ... (Read 22 times)

mp14

  • Hero Member
  • *****
  • Posts: 534
on: Jul 16, 2018
Which of the following centers responds more strongly to high levels of CO2?
 
  a. Aortic chemoreceptors
  b. Carotid chemoreceptors
  c. Central chemoreceptors
  d. Ventral respiratory centers

Question 2

In the face of hyperoxia, what is the response of the peripheral chemoreceptors to hypercapnia?
 
  a. There is a decreased drive to breathe.
  b. There is an increased drive to breathe.
  c. There is insufficient information.
  d. There is virtually no response.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tmlewis4706

  • Sr. Member
  • ****
  • Posts: 295
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
For a given increase in PaCO2 or hydrogen ion concentration, the carotid bodies are less respon-sive than the central chemoreceptors. The peripheral chemoreceptors account for only 20 to 30 of the ventilatory response to hypercapnia.

Answer to Question 2

ANS: D
High arterial PO2 (hyperoxia) decreases the peripheral chemoreceptors' PCO2 sensitivity to al-most zero.


mp14

  • Member
  • Posts: 534
Reply 2 on: Jul 16, 2018
Excellent

gcook

  • Member
  • Posts: 343
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

(c) snow in Nunavut, alter the local albedo, causing altered microclimates. High albedos are found (c) snow in Nunavut, alter the local albedo, causing altered microclimates. High albedos are found
A very high-resolution texture of the planet Mars A very high-resolution texture of the planet Mars
Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort
High Resolution Logo High Resolution Logo
Ringworm is a local contraindication for massage. Centers for Disease Control and Prevention. Ringworm is a local contraindication for massage. Centers for Disease Control and Prevention.
Can chichenpox infection elevate the levels of cells? Can chichenpox infection elevate the levels of cells?
Video: New DNA Strand Replication

For a complete list of videos, visit our video library