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1) after entering the right atrium, the furthest a red blood cell can travel is the
_________.
a. right ventricle
b. pulmonary trunk
c. superior vena cava
d. ascending aorta
e. left atrium
2) the middle primary germ layer is called __________, which gives rise to a gelatinous
material called __________, which then gives rise to different types of connective
tissue such as bone, muscle, and blood.
a. ectoderm; stem cells
b. mesoderm; mesenchyme
c. endoderm; mesenchyme
d. mesoderm; fibroblasts
e. ectoderm; mesenchyme
3) half of the fibers of each optic nerve decussate at the __________.
a. superior colliculus
b. optic chiasm
c. lateral geniculate nucleus of the thalamus
d. optic foramen
e. midbrain
4) which of the following does(do) notbelong to the second line of defense?
a. the macrophage system
b. natural killer cells
c. inflammation
d. the gastric juices
e. interferon and the complement system
5) of the following hormones, which has more target cells in the body than the others?
a. antidiuretic hormone (adh)
b. corticotropin releasing hormone (crh)
c. growth hormone-releasing hormone (ghrh)
d. growth hormone (gh)
e. oxytocin (ot)
6) male and female pelves differ in all of the following features except __________.
a.the male pelvis is more massive
b.the male pelvic outlet is smaller
c.the female pubic arch is usually greater than 100 degrees
d.the female coccyx is tilted posteriorly
e.the female sacrum is longer
7) the heart indents into the __________ of the left lung.
a. oblique fissure
b. hilum
c. apex
d. cardiac impression
e. base
8) the fuzzy coat of carbohydrates on the outer surface of the plasma membrane that
functions in cell identification is called the __________.
a. brush border
b. glycocalyx
c. cholesterol coat
d. phospholipid bilayer
e. cell-adhesion molecule
9) how do the kidneys compensate respiratory acidosis?
a. by secreting more bicarbonate ions
b. by secreting more hydrogen ions
c. by secreting more sodium ions
d. by reabsorbing more hydrogen ions
e. by reabsorbing more ammonia
10) how many muscle fibers stimulate one somatic motor neuron?
a. 0
b. 1
c. 2
d. 3
e. 4
