1) which of the following carry oxygen-poor blood?
a. pulmonary veins and vena cavae
b. aorta and pulmonary veins
c. aorta and vena cavae
d. venae cavae and pulmonary arteries
e. pulmonary veins and pulmonary arteries
2) many upper motor neurons synapse with lower motor neurons in the ___________.
a. posterior horn
b. anterior horn
c. posterior column
d. anterior column
e. posterior root ganglion
3) which of the following describes muscular tissue emerging directly from bone rather
than being separated from it by an obvious tendon?
a. direct attachment
b. indirect attachment
c. inverted attachment
d. insertion
e. origin
4) what do sutures, gomphoses, and syndesmoses have in common?
a. these are joints found only in the appendicular skeleton.
b. these are joints found only in the axial skeleton.
c. these are all bony joints.
d. these are all fibrous joints.
e. these are cartilaginous joints.
5) what is the crista ampullaris associated with?
a. static equilibrium when standing still
b. static acceleration in linear acceleration
c. dynamic equilibrium in angular acceleration
d. hearing high-pitch sounds
e. vision related to color
6) what would be the best explanation for why myelinated fibers conduct signals faster
than unmyelinated fibers?
a. there are no internodes in unmyelinated fibers.
b. there are more internodes in unmyelinated fibers.
c. facilitated diffusion of sodium and potassium is faster in myelinated fibers.
d. active transport of sodium and potassium is faster in myelinated fibers.
e. diffusion of ions along the axoplasm is faster.
7) where in the body are hemopoietic stem cells found?
a. yellow bone marrow
b. thymus
c. red bone marrow
d. spleen
e. liver
8) a person who is hiv-positive and has a helper t (th) cell count lower than __________
has aids.
a. 20,000 cells/µl
b. 5,000 cells/µl
c. 1,000 cells/µl
d. 200 cells/µl
e. 50 cells/µl
9) when do the testes start secreting testosterone?
a. in the first trimester of fetal development
b. in the first trimester after birth
c. in the first three years after birth
d. in the first three years of adolescence
e. after the first ejaculation
10) the cervical plexus isthe origin of the __________ nerve(s).
a. oculomotor
b. sciatic
c. musculocutaneous
d. radial
e. phrenic
11) which of the following is true regarding endocrine glands?
a. they secrete substances that do not alter the metabolism of their target cells, but have
extracellular effects.
b. they secrete their products by way of ducts.
c. they have an unusually low density of blood capillaries.
d. they release their secretions into the blood.
e. their secretions may be released onto the body surface.
12) fontanels are __________ in an infant.
a. spaces between the unfused cranial bones
b. cartilages covering cranial bones
c. fibrous connective tissues lining the cranial cavity
d. fibrous connective tissues lining the orbits
e. fibrous connective tissues lining paranasal sinuses
13) the chorion forms the fetal part of the placenta.
14) which of the following proteins is not normally found in plasma?
a. albumin
b. hemoglobin
c. transferrin
d. prothrombin
e. fibrinogen
15) at the end of meiosis i there are __________, whereas at the end of meiosis ii there
is/are __________.
a. two diploid cells; one diploid cell
b. two diploid cells; one haploid cell
c. two diploid cells; four haploid cells
d. two haploid cells; four haploid cells
e. two haploid cells; one diploid cell
16) which of the folllowing lists the stages or structures of prenatal development in the
correct order?
a. cleavage, zygote, morula, blastocyst, embryo, fetus
b. zygote, morula, blastocyst, cleavage, embryo, fetus
c. zygote, cleavage, morula, blastocyst, embryo, fetus
d. zygote, embryo, morula, blastocyst, cleavage, fetus
e. embryo, zygote, blastocyst, cleavage, morula, fetus
17) why is the contraction strength of smooth muscle relatively independent of its
resting length?
a. it gets nearly all of its ca2+ from the extracellular fluid.
b. it does not have intercalated discs.
c. it does not have sarcomeres.
d. it is regulated by a length-tension relationship.
e. it is involuntary muscle.
18) parkinson disease is a progressive loss of motor function due to the degeneration of
specific neurons. these neurons secrete an inhibitory neurotransmitter that prevents
excessive activity in motor centers of the brain. what neurotransmitter is this?
a. serotonin
b. dopamine
c. acetylcholine
d. gaba
e. glutamate
19) which of the following activities would fatigue your hand muscles the fastest?
a. squeezing a ball as hard as you can without stopping
b. alternately squeezing a ball then relaxing
c. bouncing a ball on the floor as many times as you can
d. throwing a ball in the air and catching it as many times as you can
20) your breathing rate is 14 breaths/minute; spirometric measurements reveal your
tidal volume is 500 ml; your inspiratory reserve volume is 3000 ml; and your expiratory
reserve volume is 1,200 ml. your vital capacity is __________ ml.
a. 2,400
b. 3,000
c. 3,800
d. 4,700
e. 5,800