Typically, there are ________ papillary muscles that project from the wall of the left ventricle and attach to the chordae tendineae that support the left AV valve.
A. six
B. two
C. a highly variable number of
D. three
E. no
Answer: B
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The artery pair that supplies the lower limbs are the
A. external iliac arteries. B. subclavian arteries. C. vertebral arteries. D. common carotid arteries. E. internal iliac arteries.
The largest autonomic plexus is called the
a) superior mesenteric plexus. b) renal plexus. c) cardiac plexus. d) celiac plexus. e) hypogastric plexus.
Which of the following is NOT a correct matching of a fetal structure with what it becomes at birth?
A) foramen ovale?fossa ovalis B) ductus venosus?ligamentum venosum C) ductus arteriosus?ligamentum teres D) umbilical arteries?medial umbilical ligaments
Read the two statements and use the following key to answer them.A. The first item is greater than the second item.B. The first item is less than the second item.C. The first item is equal or nearly equal to the second item.(1) Level of ACTH during stress(2) Level of ACTH during relaxation
Fill in the blank(s) with the appropriate word(s).