You are on an airplane at an altitude of 20,000 feet where atmospheric pressure is 350 mm Hg. Air is pumped into the cabin for you to breath. What would the percent of oxygen in this are need to be to allow you to breath air with a partial pressure of oxygen of around the normal 150 mm Hg?
a. 10%
b. 20%
c. 40%
d. 100%
e. 150%
C
Anatomy & Physiology
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This structure is responsible for the secretion of melatonin
A) Pituitary gland B) Pineal body C) Thalamus D) Hypothalamus
Anatomy & Physiology
Which of following is a function of the skeletal system?
A) body support B) calcium homeostasis C) protection of internal organs D) blood cell production E) All of the answers are correct.
Anatomy & Physiology
Only the brain interstitial fluid (not the blood or CSF) comes into direct contact with the neurons and glial cells
a. True b. False Indicate whether the statement is true or false
Anatomy & Physiology
Cortisol secretion would cease if the ________ no longer secreted ACTH.
A. hypothalamus B. posterior pituitary gland C. adrenal cortex D. anterior pituitary gland
Anatomy & Physiology