Author Question: Under quiet conditions, blood returning to the heart retains about ________ of its oxygen content. ... (Read 67 times)

berenicecastro · **on:** Feb 28, 2019

Under quiet conditions, blood returning to the heart retains about ________ of its oxygen content.
A) 25 percent
B) 50 percent
C) 75 percent
D) 90 percent
E) 100 percent

Question 2

Trace the circulation of aqueous humor from the site of production to the site of where it is reabsorbed. 1. posterior chamber 2. anterior chamber 3. ciliary body 4. scleral venous sinus 5. pupil
A) 4, 3, 1, 5, 2
B) 2, 1, 5, 3, 4
C) 1, 3, 4, 5, 2
D) 3, 1, 5, 2, 4
E) 5, 2, 4, 1, 3