1) mitosis is responsible for embryonic development and tissue growth.
2) divergent sensory pathways explain the phenomenon of referred pain.
3) inadequate liver function is the most common reason that premature infants suffer
from multiple dysfunctions.
4) the macula sacculi is nearly horizontal and the macula utriculi is nearly vertical.
5) the vestibule contains organs of hearing and equilibrium.
6) respiratory arrest is an irreversible condition.
7) hypocalcemia causes muscle weakness, whereas hypercalcemia causes potentially
fatal muscle tetanus.
8) the acidity of sweat contributes to the acid mantle that inhibits bacterial growth in the
skin.
9) healthy paranasal sinuses are filled with mucus.
10) the blood-brain barrier (bbb) helps prevent hemorrhages in the nervous tissue of the
brain.
11) repolarization of a ventricular cardiocyte takes longer than repolarization of a
typical neuron.
12) the scrotum contains the testes and spermatic cords.
13) which of the following explains the neural mechanism of an erection?
a. it is an autonomic reflex mediated predominantly by parasympathetic nerve fibers.
b. it is an autonomic reflex mediated predominantly by sympathetic nerve fibers.
c. it is a somatic reflex mediated predominantly by parasympathetic nerve fibers.
d. it is a somatic reflex mediated predominantly by sympathetic nerve fibers.
e. it is an exclusively voluntary action mediated by the cerebral cortex.
14) which of the following is comprised of anterior rami from c5-t1?
a. cervical plexus
b. brachial plexus
c. coccygeal plexus
d. sacral plexus
e. lumbar plexus
15) the “abcd rule” for recognizing early signs of malignant melanoma refers to the
following characteristics of the lesion:
a. asymmetry, border irregularity, color, and diameter
b. asymmetry, brightness, color, and diameter
c. aspect, brightness, color, and distance
d. aspect, border irregularity, color, and distance
e. area, border irregularity, color, and density
16) you go to the movies after a long day and you begin to nod off as soon as the movie
starts. your head starts to lower a little, but a reflex causes your head to rise. this is
called the __________ reflex.
a. tendon
b. crossed extension
c. withdrawal
d. stretch (myotatic)
e. flexor (withdrawal)
17) bacteria constitute about __________% of the dry weight of the feces.
a. 2
b. 14
c. 30
d. 55
e. 80
18) which of the followingenters a target cell’s nucleus and acts directly on the genes.
a. insulin
b. antidiuretic hormone (adh)
c. estrogen
d. glucagon
e. oxytocin (ot)
19) a 100 db sound (loud) of 150 hz (low pitch) would cause which of the following to
occur?
a. the tectorial membrane to vibrate slightly near its distal end
b. the tectorial membrane to vibrate vigorously near its proximal end
c. the basilar membrane to vibrate slightly near its proximal end
d. the basilar membrane to vibrate vigorously near its distal end
e. the basilar membrane to vibrate slightly near its distal end
20) in a healthy kidney, very little __________ is filtered by the glomerulus.
a. amino acids
b. electrolytes
c. glucose
d. vitamins
e. protein
21) the __________ encloses all the rest of the membranes and the embryo.
a. chorion
b. allantois
c. yolk sac
d. amnion
e. zona pellucida
22) the zona fasciculata in the adrenal gland secretes ___________.
a. glucagon
b. epinephrine
c. estradiol
d. aldosterone
e. cortisol
23) what is the most abundant cation in the icf?
a. ca2+
b. na+
c. k+
d. cl-
e. pi
24) exhausted from studying all night, you briefly close your eyes and your mind starts
to wander. which brain waves would be most predominant in an eeg?
a. alpha
b. beta
c. delta
d. theta
25) hemophilia is caused by a sex-linked recessive allele. this means that __________.
a. women can be carriers but cannot get hemophilia
b. the gene is found on the y chromosome
c. a man can give the allele to his son but not to his daughter
d. a son who has hemophilia inherited the allele from his mother
e. a son who has hemophilia inherited the allele from his father
26) during climacteric, what can causehot flashes?
a. vasoconstriction of cutaneous arteries
b. vasodilation of cutaneous arteries
c. vasodilation of cranial arteries
d. vasoconstriction of cranial arteries
e. vasodilation of facial arteries