1) the food pyramid recommends many servings a day of dark-green and orange
vegetables. which vitamin is particularly abundant in this food group?
a) a
b) c
c) e
d) folic acid
e) all of the answers are correct.
2) the respiratory defense system is important because it
a) helps filter the air.
b) helps warm the air.
c) keeps out debris.
d) keeps out pathogens.
e) all of the answers are correct.
3) which of the following originates on the medial epicondyle of the humerus?
a) flexor carpi radialis
b) flexor carpi ulnaris
c) palmaris longus
d) pronator teres
e) all of the answers are correct.
4) the apneustic centers of the pons
a) inhibit the pneumotaxic and inspiratory centers.
b) provide stimulation to the inspiratory center.
c) monitor blood gas levels.
d) alter chemoreceptor sensitivity.
e) generate the gasp reflex.
5) after brain surgery, a patient receiving postoperative care in an intensive care unit
began to pass large volumes of very dilute urine. the icu nurse administered a medicine
that mimics one of the following hormones. which one?
a) aldosterone
b) epinephrine
c) renin
d) adh
e) cortisol
6) all of the following are true of neutrophils, except that they are
a) granular leukocytes.
b) phagocytic.
c) also known as polymorphonuclear leukocytes.
d) important in coagulation.
e) active in fighting bacterial infections.
7) a patient takes a medication that blocks ach receptors of skeletal muscle fibers. what
is this drug’s effect on skeletal muscle contraction?
a) increases tone in the muscle
b) causes a strong contraction similar to a “charlie horse” cramp
c) increases the muscle’s excitability
d) produces a strong, continuous state of contraction
e) reduces the muscle’s ability for contraction
8) after ovulation, the layer of follicle cells that surround the unfertilized egg is called
the
a) zona pellucida.
b) corona radiata.
c) graafian follicle.
d) functional zone.
e) tunica follicularis.
9) ________ are teeth with flattened crowns and prominent ridges that are adapted for
crushing and grinding.
a) molars
b) cuspids
c) eye teeth
d) canines
e) dentins
10) neurons from the fasciculus gracilis
a) relay information directly to the cerebrum.
b) decussate before entering the medial lemniscus.
c) relay sensory information to the ipsilateral cerebral hemisphere.
d) carry both crude and fine touch.
e) process proprioception.
11) all of the following are true of polysynaptic reflexes, except that they
a) are arranged according to dermatomes.
b) are intersegmental in distribution.
c) involve reciprocal innervation.
d) have reverberating circuits that prolong the reflexive motor response.
e) involve pools of interneurons.