The heart
A. is a four-chambered muscular pump.
B. is posterior to the trachea.
C. is lined with an epithelial layer called epicardium.
D. lies mostly to the right of the midline of the sternum.
E. has a superior apex and an inferior base.
A
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The brain ventricle located between the pons and the cerebellum is the ________ ventricle.
A. third B. lateral C. fourth D. median E. falx
Absence of the SRY gene and expression of the Wnt4 gene are necessary for female reproductive structures to develop in an embryo and fetus.
Answer the following statement true (T) or false (F)
Which of the following do NOT have a relationship?
a. microtubules and largest cytoskeletal elements b. molecular motors and intracellular transport c. anoxic animals and hydrogenosomes d. Clostridium and protozoa e. all pairs have a relationship
Small arteries that direct blood into capillary beds are:
A) elastic arteries B) muscular arteries C) arterioles D) capillaries