Physiology
II - PB 3325
Course
Director: Mrs. Kay Brashear
20 questions will be
taken
from the study guides below.
Lecture Outline 18 - Regulation of Respiration
1.
Where does the neurogenic control of respiration originate?
2.
Know the functions of :
DRG, VRG, Pneumotaxic center and Apneustic center
3.
What is a ramp signal and how is it controlled?
4.
What is the function of the respiratory reflex? (Hering-Breurer
Inspiration
Reflex)
5.
How do the medullary central chemoreceptors (chemosensitive area)
regulate
the rate of respiration?
6.
What effect does an increase in the partial pressure of oxygen have on
the rate of ventilation?
7.
How do peripheral chemoreceptors help regulate respiration?
hydrogen ions, oxygen, and carbon dioxide?
8.
How is ventilation regulated during exercise? What changes if the
exercise is anaerobic?
9.
What effect do irritant receptors and J receptors ( C fibers) have on
respiration?
10.
What is periodic breathing?
Special Respiration: Lecture Outline 19
1. What are the physiological
responses to high altitude?
2. What are the immediate
mechanisms of compensation at high altitude?
3.. What compensatory
mechanisms
are long-term?
4. What is acute
mountain
sickness? What are the two causes?
5. Know about nitrogen
narcosis,
decompression sickness and air embolisms.
6. Know how gravity
effects
blood distribution and CV function.
Special Circulations: Lecture 20
1. How is blood flow to
various
circulations regulated? Neural or local? Is local flow
regulation
specific to H+, carbon dioxide or oxygen?
2. What controls
flow
in the coronary circulation, skeletal muscle, cerebral circulation,
skin,
kidneys and splanchnic circulation?
Copyright, Kay
Brashear
and James B. Parker, 1999