1) the connective tissue fibers of the myocardium
a) add strength and prevent overexpansion of the heart.
b) help distribute the forces of contraction.
c) provide elasticity to help return the heart to its normal size.
d) provide physical support for cardiac muscle.
e) all of the answers are correct.
2) a plasma protein essential for blood coagulation is
a) albumin alpha.
b) fibrinogen.
c) immunoglobulin a.
d) metalloprotein d.
e) lipoprotein c.
3) which of the following descriptions best matches the term stereocilia?
a) move up and down when the stapes moves back and forth
b) transmit movement of the tympanic membrane to the inner ear
c) bending these produces receptor potential in hair cells
d) tiny weights necessary for the static sense of equilibrium
e) seal the oval window
4) an enzyme secreted by the gastric mucosa of a newborn that coagulates milk proteins
is
a) pepsin.
b) trypsin.
c) gastrin.
d) rennin.
e) cholecystokinin.
5) during repolarization of a neuron
a) sodium ions move out of the cell.
b) potassium ions move out of the cell.
c) potassium ions move into the cell.
d) both sodium and potassium ions move into the cell.
e) sodium ions move into the cell.
6) which of the following joints is an example of a ball-and-socket joint?
a) elbow
b) knee
c) ankle
d) wrist
e) shoulder
7) red blood cell shrinkage is to ________ as cell bursting is to ________.
a) crenation; hemolysis
b) lysis; crenation
c) hypotonic; isotonic
d) isotonic; hypotonic
e) isotonic; hypertonic
8)
figure 9-2 a simplified sectional view of the knee joint
identify the structure labeled “2”
a) serous membrane
b) synovial membrane
c) joint capsule
d) periosteum
e) intracapsular ligament
9) jack gets into a fight and is punched in the nose. which of the following bones might
be fractured?
a) ethmoid bone
b) sphenoid bone
c) temporal bone
d) mandible
e) parietal bone
10) bob is struck on the left side of the head and is knocked unconscious. when he
recovers consciousness, he can hear individual words but cannot understand the
meaning of phrases or sentences. this implies damage to his
a) vestibulocochlear nerve.
b) general interpretive area.
c) speech center.
d) prefrontal lobe.
e) temporal lobe.
11) the principal cation in intracellular fluid is
a) sodium.
b) potassium.
c) calcium.
d) magnesium.
e) chloride.
12) the marginal branch and posterior interventricular branch are branches of the
a) right coronary artery.
b) left coronary artery.
c) circumflex artery.
d) coronary sinus.
e) aorta.
13) which one of the following is not one of the four main tissue categories?
a) muscle tissue
b) neural tissue
c) osseous tissue
d) connective tissue
e) epithelial tissue
14) spermatozoa are functionally matured within the
a) epididymis.
b) ductus deferens.
c) rete testes.
d) seminiferous tubules.
e) seminal gland (seminal vesicle).
15) which of the following is not a function of smooth muscle tissue?
a) altering the diameter of the respiratory passageways
b) elevating hairs on the arm
c) forcing blood from the heart into the major arteries
d) moving food materials along the digestive tract
e) forcing urine out of the urinary tract
16) the mentalis muscle inserts on the
a) orbicularis oris.
b) skin of the chin.
c) angle of the mouth.
d) hyoid bone.
e) skin around the eyelids.
17) the thick ascending limb of the nephron loop (loop of henle) is almost impermeable
to water, but reabsorbs sodium, potassium, and chloride ions from the filtrate.
a) the first statement is true but the second statement is false.
b) the first statement is false but the second statement is true.
c) both statements are true.
d) both statements are false.
e) both are true and relate to production of a dilute urine.
18) when large numbers of antibodies encounter their antigenic targets, they interact to
form a three-dimensional structure known as a(n) ________.
19) a shift of the resting transmembrane potential toward 0 mv is called ________.
20) if a wound overwhelms the clotting mechanism and leads to serious hemorrhage
and drop in blood pressure, what compensations does the body have to defend cardiac
output?
21) ________ fills the membranous labyrinth. (note: be sure to capitalize the first letter
of your answer).
22) briefly outline the role of the liver in glucose metabolism.
23) in a procedure known as balloon ________, an inflatable balloon at the end of a
catheter is used to press plaque back against the vessel wall.