1) chemoreceptors are located in all of the following, except
a) carotid bodies.
b) aortic bodies.
c) in the skin.
d) the organs of taste.
e) the organs of smell.
2) each of the following nerves originates in the lumbar plexus, except the ________
nerve.
a) saphenous
b) sciatic
c) femoral
d) obturator
e) genitofemoral
3) peroxisomes
a) contain enzymes that break down hydrogen peroxide.
b) absorb and break down fatty acids, generating hydrogen peroxide in the process.
c) are produced from other peroxisomes.
d) are more abundant in cells with higher metabolic rates.
e) all of the answers are correct.
4) the earlike extension of the atrium is the
a) ventricle.
b) coronary sinus.
c) coronary sulcus.
d) auricle.
e) atricle.
5) the release of endogenous pyrogen (or interleukin-1) by active macrophages would
a) cause inflammation.
b) produce a fever.
c) activate complement.
d) opsonize pathogens.
e) activate antibodies.
6) the nasal cavity is separated from the oral cavity by the
a) hard palate.
b) soft palate.
c) cribriform plate.
d) internal nares.
e) pharyngeal septum.
7) ________ neurons are short, with a cell body between dendrite and axon, and occur
in special sense organs.
a) multipolar
b) anaxonic
c) unipolar
d) bipolar
e) motor
8) components of the upper respiratory system include all of the following, except the
a) lips.
b) nose.
c) nasal cavity.
d) pharynx.
e) paranasal sinuses.
9) cyanosis signifies that a patient
a) has had too much sun.
b) has been kept out of the sun.
c) has an allergic reaction.
d) has oxygen-starved skin.
e) has been exposed to cyanide.
10) in the body, inorganic compounds
a) can serve as buffers.
b) can make up proteins.
c) are made from organic compounds.
d) are structural components of cells.
e) are metabolized for cellular energy.
11) suppressor t cells act to
a) suppress antigens.
b) erase memory t cells.
c) limit antigen proliferation.
d) inhibit t and b cell activities.
e) produce antibodies involved in autoimmunity.
12) white blood cells that release histamine at the site of an injury are
a) neutrophils.
b) eosinophils.
c) basophils.
d) lymphocytes.
e) monocytes.
13) an infection that damages the vestibular nerve could result in a loss of
a) hearing and equilibrium.
b) olfaction.
c) visual acuity.
d) hearing.
e) equilibrium.