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1) the inherited brain disorder huntington's disease is caused by the destruction of basal
nuclei that use different neurotransmitters. one neurotransmitter is ________ and the
other is ________.
a) acetylcholine; serotonin
b) serotonin; norepinephrine
c) norepinephrine; serotonin
d) acetylcholine; gaba
e) glutamate; serotonin
2) depolarization of the ventricles is represented on an electrocardiogram by the
a) p wave.
b) t wave.
c) s wave.
d) qrs complex.
e) pr complex.
3) which of the following hormones may lead to acromegaly if hypersecreted after
closure of the epiphyseal plates?
a) cortisol
b) parathyroid hormone
c) insulin
d) growth hormone
e) epinephrine
4) in order for a lymphocyte to respond to an antigen, the antigen must
a) be phagocytized by the lymphocyte.
b) enter the cytoplasm of the lymphocyte.
c) bind to the dna of the lymphocyte.
d) bind to specific receptors on the lymphocyte surface.
e) depolarize the lymphocyte.
5) the group of organic compounds containing carbon, hydrogen, and oxygen in a near
1:2:1 ratio is defined as a
a) carbohydrate.
b) lipid.
c) protein.
d) nucleic acid.
e) saturated fat.
6) which of the following interactions between electrical and chemical gradients does
not lead to the establishment of a neuron's resting potential?
a) chemical and electrical forces both favor sodium ions entering the cell.
b) electrical forces push sodium ions out of the cell.
c) chemical forces tend to drive potassium ions out of the cell.
d) potassium ions are attracted to the negative charges inside the cell.
e) potassium ions are repulsed by positive charges outside the cell.
7) which of these age-based changes is false?
a) the lungs lose elastic tissue.
b) the lung's compliance changes.
c) vital capacity increases.
d) respiratory muscles weaken.
e) costal cartilages become more flexible.
8) the mamillary bodies of the hypothalamus
a) regulate lactation.
b) secrete oxytocin.
c) control feeding reflexes.
d) control heart rate and blood pressure.
e) secrete antidiuretic hormone.
9) which of the following is not part of oocyte activation?
a) softening of the zona pellucida
b) influx of sodium ion
c) membrane depolarization
d) release of calcium ion from smooth er
e) discharge of exocytotic vesicles
10) while on a school skiing trip in colorado, heidi falls and breaks her tibia and fibula
in a pott fracture. what would you expect as a prominent part of her clinical assessment
several hours after the fall?
a) hypertension
b) tachycardia
c) erythema
d) hematoma
e) cyanosis
11) trace the circulation of aqueous humor from the site of production to the site of
where it is reabsorbed:
1. posterior chamber
2. anterior chamber
3. ciliary body
4. canal of schlemm
5. pupil
a) 4, 3, 1, 5, 2
b) 2, 1, 5, 3, 4
c) 1, 3, 4, 5, 2
d) 3, 1, 5, 2, 4
e) 5, 2, 4, 1, 3
12) components of the cytoskeleton may include all of the following, except
a) microfilaments.
b) intermediate filaments.
c) microsomes.
d) microtubules.
e) thick filaments.
13) which of the following combinations may result in the hemolytic disease of the
newborn:
a) mother rh positive, baby rh negative
b) mother rh negative, baby rh negative
c) mother rh negative, baby rh positive
d) mother type a+, baby type o+
e) none of the answers are correct.
14) a high-energy bond in atp is present
a) between adenine and ribose.
b) between adenine and a phosphate group.
c) between the first and second phosphate group.
d) between the second and third phosphate group.
e) between phosphate groups 1 and 2 and between phosphate groups 2 and 3.
15) plasminogen is converted to its active form by an enzyme called ________.
16) the direct transfer of heat energy from one object to another is called ________.
17) blood volume represents about ________ percent of a person's body weight. (note:
be sure your answer is a numeral, e.g. '5' vs 'five').
18) ________ cells adjust sensitivities at the synapses between bipolar and ganglion
cells. (note: be sure to capitalize the first letter of your answer).
19) the surgical removal of the prepuce is called ________.
20) the term ________ refers to antibodies found in body fluids.
21) the ________ are the four masses on the posterior of the midbrain.
22) hormones that slow tumor growth are called ________.
