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1) the ion that triggers the release of acetylcholine into the synaptic cleft is
a) sodium.
b) potassium.
c) calcium.
d) chloride.
e) magnesium.
2) reactions within ________ provide most of the energy needed by a typical cell.
a) cytoplasm
b) the plasma membrane
c) the mitochondria
d) the endoplasmic reticulum
e) nucleus
3) the true ribs are
a) ribs 1-7.
b) called vertebrosternal ribs.
c) ribs 8-12.
d) called vertebrochondral ribs.
e) ribs 1-7 and are called verterbrosternal ribs.
4) leslie has a bad sore throat and the lymph nodes in her neck are swollen. this would
indicate that
a) the focus of the infection is the lymph nodes.
b) lymph is not flowing through these lymph nodes.
c) the affected lymph nodes contain an increased number of lymphocytes.
d) the lymph node is actively producing phagocytes.
e) the lymph node has increased its secretion of thymosin.
5) in relationship to the diaphysis of a long bone, the osteons are
a) radial.
b) anterior.
c) parallel.
d) proximal.
e) diagonal.
6) type ab blood has which of the following characteristics:
a) rbcs have the rh positive antigens and the anti-d plasma antibodies.
b) rbcs have no surface antigens and both anti-a and anti-b antibodies in the plasma.
c) rbcs have both the a & b surface antigens and no abo plasma antibodies.
d) rbcs have the a and the b surface antigens and the plasma has anti-a and anti-b
antibodies.
e) rbcs have the a antigen and the plasma has the anti-b antibody.
7) an example of an organic substance is:
a) sucrose
b) carbonic acid
c) sodium chloride
d) oxygen
e) nitric oxide
8) in case of hemorrhage, platelets are stored as a reserve in
a) the heart.
b) the kidneys.
c) the spleen.
d) the thymus gland.
e) bone marrow.
9) the narrow space between the synaptic terminal and the muscle fiber is the
a) synaptic knob.
b) motor end plate.
c) motor unit.
d) synaptic cleft.
e) m line.
10) almost 75 percent of all parasympathetic outflow travels along the
a) splanchnic nerves.
b) facial nerves.
c) vagus nerves.
d) glossopharyngeal nerves.
e) trigeminal nerve.
11) cells of the suprarenal cortex produce
a) epinephrine.
b) norepinephrine.
c) aldosterone.
d) acth.
e) angiotensin.
12) the airway that connects the larynx to the bronchial tree is the
a) trachea.
b) bronchiole.
c) laryngopharynx.
d) alveolar duct.
e) bronchus.
13) in response to action potentials arriving along the transverse tubules, the
sarcoplasmic reticulum releases
a) acetylcholine.
b) sodium ions.
c) potassium ions.
d) calcium ions.
e) hydrogen ions.
14) skin, hair, and nails are associated with the ________ system.
a) skeletal
b) muscular
c) integumentary
d) endocrine
e) immune
15) which of the following statements about blood is false?
a) blood contains buffers that control ph.
b) the normal ph of blood is 6.8 to 7.0.
c) blood is more viscous than water.
d) blood is about 55 percent plasma.
e) cells in blood comprise the formed elements.
16) the glomeruli are best described as being tufts of
a) arteries.
b) veins.
c) venules.
d) capillaries.
e) arterioles.
17) the ________ is important in storage and recall of new long-term memories.
a) amygdaloid body
b) cingulate gyrus
c) mamillary bodies
d) hippocampus
e) fornix
