Blood with a high oxygen content enters the human heart at the ___?

Question

[a] right auricle

[b] left auricle

[c] arota

[d] left ventricle

[e] right ventricle

Answer 1

b

d**n, you're too fast

Answer 2

The answer is [b] left auricle.

Answer 3

A human anatomist would not call the correct answer left auricle.  He would call it the left atrium.

Answer 4

left atrium

Answer 5

(B) Left auricle (atrium) via the pulmonary vein.

Answer 6

And a veterinary anatomist would agree that B was the best choice here, but add that the auricle ("little ear") is the blind pouch that extends from the atrium, is variable among species, and has more-visible pectinate muscles.  Usually the pectinate muscles are better developed in the left auricle than the right one.  There is a single pulmonary trunk in dogs, horses and bowhead whales; two pulmonary veins entering the left atrium in swine and cattle; and four pulmonary veins in tigers.

Answer 7

B. left auricle (through 4 pulmonary veins)

http://en.wikipedia.org/wiki/Circulatory...