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1) pain, heat, and cold are detected by __________.
a. tactile (meissner) discs
b. tactile corpuscles
c. lamellar (pacinian) corpuscles
d. free nerve endings
e. end (krause) bulbs
2) preganglionic fibers of the autonomic efferent pathway are _________ and secrete
__________.
a. myelinated; norepinephrine (ne)
b. myelinated; acetylcholine (ach)
c. myelinated; acetylcholine (ach) and norepinephrine(ne)
d. unmyelinated; acetylcholine (ach)
e. unmyelinated; norepinephrine(ne)
3) a __________ is composed of a granular cluster of eight proteins called __________
with dna wound around them.
a. nucleosome; centrosomes
b. nucleosome; histones
c. chromosome; histones
d. chromosome; centromeres
e. centromere; chromatin
4) after childbirth, a woman begins experiencing tremendous pain in her groin, making
it difficult for her to walk. an x-ray shows a fracture extending from her symphysis
pubis to the inferior ramus of the pubis. as a result of the fracture, which group of
muscles might be impaired?
a.hip flexors
b.thigh abductors
c.hip extensors
d.lateral rotators
e.thigh adductors
5) it is common to find __________ in compact bone, but they arenot seen in spongy
bone.
a.lamellae
b.osteoclasts
c.lacunae
d.central canals
e.osteocytes
6) the most immediate threat to the life of a patient with severe burns is __________.
a. fluid loss
b. eschar
c. heat loss
d. pain
e. infection
7) which of the following is a feature shared by cardiac muscle andskeletal muscle?
a. muscle fiber striations
b. dependence upon nervous stimulation
c. communication viaelectrical (gap) junctions
d. intercalated discs
e. autorhythmicity
8) the golf-ball sized structure found inferior to the urinary bladder, and surrounding the
most proximal portion of the urethra, is called the __________.
a.seminal vesicle
b.urethra
c.bulbourethral gland
d.prostate gland
e.ejaculatory duct
9) __________ provide motility to a sperm cell, __________ act as sensory "antennae"
in many cells, and ____________ increase a cell's surface area.
a.cilia; microvilli; flagella
b.microvilli; cilia; flagella
c.microvilli; flagella; cilia
d.flagella; microvilli; cilia
e.flagella; cilia; microvilli
10) taking apart a clock to see how it works is similar to ____________ thinking about
human physiology.
a. comparative
b. evolutionary
c. holistic
d. inductive
e. reductionist
11) which of the following is the most superficial layer enclosing the heart?
a. parietal pericardium
b. visceral pericardium
c. endocardium
d. epicardium
e. myocardium
12) total saturation of protein transporters for a given solute in the renal tubules would
result in __________.
a. reabsorption of all the solute
b. a renal clearance of zero
c. a net filtration pressure of 1.0
d. appearance of that solute in the urine
e. absence of that solute from the urine
13) the human ear can detect what frequency of vibrations?
a. 5 to 20 hz
b. 10 to 10,000 hz
c. 20 to 20,000 hz
d. 5 to 200,000 hz
e. 100 to 100,000 hz
14) the binding of __________ to a nicotinic receptor of a muscle fiber will
__________ it.
a. acetylcholine; excite
b. norepinephrine; excite
c. monoamine oxidase; inhibit
d. acetylcholine; inhibit
e. acetylcholinesterase; excite
15) pulmonary arteries have __________ blood pressure compared to systemic arteries.
a. similar
b. a little lower
c. considerably lower
d. considerably higher
e. a little higher
16) which statement best describes the goal of medications used to treat myasthenia
gravis?
a. to increase the number of acetylcholine receptors
b. to decrease the number of synaptic vesicles
c. to promote multiple motor unit summation
d. to inhibit ca2+ release from the sarcoplasmic reticulum
e. to inhibit the function of cholinesterase
17) output from higher brain centers can bypass both the drg and vrg and go directly to
__________, which controls the accessory muscles of respiration.
a.the diaphragm
b.spinal integration centers
c.the cerebral cortex
d.the vagus nerve
18) which of the following is not a role of prostaglandins?
a. to induce labor contractions
b. to stop fever and pain
c. to constrict or dilate arterioles
d. to act as vasodilators or vasoconstrictors
e. to inhibit gastric secretion
