1) whole blood for testing in a clinical laboratory is usually collected from
a) the heart.
b) a superficial artery.
c) a superficial vein.
d) a capillary.
e) an arteriole.
2) if an individual carries two different alleles for the same trait, the individual is
________ for the trait.
a) homologous
b) homozygous
c) heterozygous
d) autosomous
e) polygenic
3) the upper motor neurons of the medial pathway are located within any of the
following, except the
a) vestibular nuclei.
b) reticular formation.
c) superior colliculi.
d) inferior colliculi.
e) mamillary bodies.
4) one mechanism the kidney uses to raise systemic blood pressure is to
a) increase secretion of renin by the juxtaglomerular complex.
b) decrease secretion of aldosterone.
c) increase release of angiotensin ii by the suprarenal glands.
d) increase filtration into glomerular (bowman’s) capsule.
e) decrease urinary albumin concentration.
5) sensory neurons of the pns are
a) unipolar.
b) bipolar.
c) anaxonic.
d) multipolar.
e) tripolar.
6) the obstructive lung disease in which elastic fibers are lost, leading to collapse of
alveoli and bronchioles, is called
a) asthma.
b) bronchitis.
c) emphysema.
d) tuberculosis.
e) pneumonia.
7) the coxal bone and sacrum combine to form the
a) pelvis.
b) pelvic girdle.
c) hips.
d) pectoral girdle.
e) pubic symphysis.
8)
figure 13-2 spinal nerves
identify the structure labeled “2”
a) ventral root
b) dorsal ramus
c) spinal nerve
d) ventral ramus
e) white ramus
9) eileen is a strict vegan and therefore eats no animal products. she develops an anemia
that her doctor thinks is caused by a nutritional deficiency. which of the following is the
likeliest candidate?
a) iron deficiency
b) vitamin b12 deficiency
c) lack of intrinsic factor
d) vitamin k deficiency
e) vitamin b6 deficiency
10) which of the following is not characteristic of smooth muscle?
a) smooth muscle connective tissue forms tendons and aponeuroses.
b) neurons that innervate smooth muscles are under involuntary control.
c) smooth muscle cells are uninucleate.
d) smooth muscles do not contain sarcomeres.
e) the thin filaments of smooth muscle fibers are attached to dense bodies.
11) non-sex chromosomes are called
a) homologous.
b) homozygous.
c) heterozygous.
d) autosomal.
e) chromatids.
12) ________ are chemical messengers that are released in one tissue and transported in
the bloodstream to alter the activities of specific cells in other tissues.
a) hormones
b) neuropeptides
c) neurotransmitters
d) humoral antibodies
e) antigens
13)
figure 23-2 mechanics of ventilation
which muscle(s) produce(s) the movement labeled “1”?
a) rectus abdominis
b) internal intercostals
c) external intercostals
d) diaphragm
e) both rectus abdominis and external intercostals
14) a fascicle is
a) a group of muscle fibers that are encased in the perimysium.
b) the belly of a muscle.
c) a group of muscle fibers that are all part of the same motor unit.
d) a group of muscle fibers and motor neurons.
e) a collection of myofibrils in a muscle fiber.
15) earwax is produced by ________ glands.
a) sebaceous
b) apocrine sweat
c) merocrine sweat
d) ceruminous
e) eccrine sweat
16) the nucleus of an atom consists of
a) electrons.
b) protons.
c) neutrons.
d) protons + neutrons.
e) protons + electrons.
17) the process of spermiogenesis produces
a) spermatogonia.
b) primary spermatocytes.
c) secondary spermatocytes.
d) spermatids.
e) spermatozoa.
18)
figure 14-1 the circulation of cerebrospinal fluid
identify the structure labeled “4”
a) cerebral aqueduct
b) lateral ventricle
c) lateral aperture
d) subarachnoid space
e) choroid plexus