1) the reduction of friction between the parietal and visceral surfaces of an internal
cavity is the function of
a) cutaneous membranes.
b) mucous membranes.
c) serous membranes.
d) synovial membranes.
e) the lamina propria.
2) the regulation of awake-asleep cycles appears to involve an interplay between brain
stem nuclei that use different neurotransmitters. the one that favors alertness is
________ and the other promoting deep sleep is ________.
a) acetylcholine; serotonin
b) serotonin; norepinephrine
c) norepinephrine; serotonin
d) dopamine; gaba
e) glutamate; serotonin
3) ________ are also known as canines.
a) bicuspids
b) incisors
c) molars
d) secondary teeth
e) cuspids
4) blood from the dorsal venous arch is drained by the ________ vein(s).
a) small saphenous
b) posterior tibial
c) great saphenous
d) popliteal
e) anterior tibial
5)
figure 24-2 the wall of the small intestine
contraction of the muscle layer labeled “9” causes the digestive tract to
a) constrict.
b) shorten.
c) dilate.
d) fold for increased surface area.
e) secrete enzymes.
6) in order for glycolysis to proceed, which of the following need not be present?
a) glucose
b) acetyl-coa
c) atp
d) nad
e) adp
7) the combination of plasma and formed elements is called
a) serum.
b) lymph.
c) whole blood.
d) extracellular fluid.
e) packed blood.
8) the enzyme ________ is required for the synthesis of mrna.
9) initially, the nutrients absorbed by the trophoblast easily reach the inner cell mass by
simple
a) osmosis.
b) diffusion.
c) peristalsis.
d) ciliary action.
e) convection.
10) ions with a + charge are called
a) cations.
b) anions.
c) radicals.
d) positrons.
e) isotopes.
11) the ________ is the rounded portion of the uterine body superior to the attachment
of the uterine tubes.
a) body
b) cervix
c) myometrium
d) fundus
e) internal os
12)
figure 20-2 cardiac cycle
what occurs at the area labeled “c” on the graph?
a) av valve opens
b) av valve closes
c) ventricular filling begins
d) semilunar valve closes
e) semilunar valve opens
13) most of a cell’s dna is located in its
a) ribosomes.
b) lysosomes.
c) golgi apparatus.
d) nucleus.
e) nucleolus.
14) while playing in an intramural football game, joe is tackled so hard that he breaks a
rib. he can actually feel a piece of the rib sticking through the skin and he is having a
difficult time breathing. joe probably is suffering from
a) a collapsed trachea.
b) an obstruction in the bronchi.
c) a pneumothorax.
d) decreased surfactant production.
e) a bruised diaphragm.
15) branches of the popliteal artery include the
a) femoral artery.
b) anterial tibial artery.
c) iliac artery.
d) dorsalis pedis.
e) plantar arch.
16) the coronary sulcus is a groove that
a) marks the border between the atria and ventricles.
b) marks the boundary line between the right and left ventricles.
c) marks the boundary line between the right and left atria.
d) separates the atrioventricular valves from the atria.
e) separates the coronary arteries from the coronary veins.
17) an elongate outer segment containing membranous discs and a narrow connecting
stalk that attaches the outer segment to the inner segment describes
a) a bipolar cell.
b) a photoreceptor.
c) a ganglion cell.
d) an amacrine cell.
e) a horizontal cell.
18) each of the following is an example of a neuroeffector junction, except the junction
between a neuron and a(n)
a) skeletal muscle cell.
b) smooth muscle cell.
c) endocrine gland cell.
d) exocrine gland cell.
e) nerve cell.