Author Question: What is hypercapnia? How does it affect respiration? What are common ... (Read 45 times)

nautica902 · **on:** Feb 28, 2019

What is hypercapnia? How does it affect respiration? What are common causes?

Question 2

Where are the visual pigments located in the rods and cones?
A) in the inner segment of photoreceptors
B) in mitochondria located in the outer segment
C) inside membrane discs stacked in the outer segment
D) inside a photosensitive nucleus
E) sandwiched in the cell membrane of the photoreceptors

Christopher · **Reply #1 on:** Feb 28, 2019

Answer to Question 1

Hypercapnia refers to a condition of elevated partial pressure of carbon dioxide. This rise is detected by chemoreceptors in the aortic and carotid bodies and powerfully stimulates ventilation through effects on pontine nuclei. Hypercapnia results from increased production as during exercise or reduced elimination as in reduced alveolar ventilation.

Answer to Question 2

C