1) autoantibodies are
a) produced by activated t cells.
b) produced during an allergic reaction.
c) directed against the body’s own antigens.
d) the first step in immunological competence.
e) important in tissue rejection reactions.
2) the circumflex branch and the anterior interventricular artery are branches of the
a) right coronary artery.
b) left coronary artery.
c) interventricular artery.
d) coronary sinus.
e) aorta.
3) the principal hormone secreted by the corpus luteum is
a) lh.
b) fsh.
c) progesterone.
d) luteosterone.
e) estrogen.
4) male brains are typically ________ compared to female brains.
a) larger
b) smaller
c) the same size
d) very smooth
e) more convoluted
5) at the optic chiasm
a) axons from the nasal halves of each retina cross.
b) axons from the temporal halves of each retina cross.
c) axons from the retinae synapse on those from the other half.
d) the olfactory nerve crosses to the opposite side of the brain.
e) the optic nerve enters the cerebellum.
6) the mass of an atom is largely determined by the number of ________ it has.
a) electrons
b) protons
c) neutrons
d) protons + neutrons
e) protons + electrons
7) platelets are pinched off from giant multinucleated cells in the bone marrow called
a) erythroblasts.
b) normoblasts.
c) megakaryocytes.
d) myeloblasts.
e) lymphoblasts.
8) in most cases, the mumps is a viral infection of the
a) mandibular glands.
b) sublingual glands.
c) parotid glands.
d) submandibular glands.
e) lingual glands.
9) the plasma membrane of a skeletal muscle fiber is called the
a) sarcolemma.
b) sarcomere.
c) sarcosome.
d) sarcoplasmic reticulum.
e) sarcoplasm.
10) the effect that a neurotransmitter has on the postsynaptic membrane depends on
a) the frequency of neurotransmitter release.
b) the nature of the neurotransmitter.
c) the characteristics of the receptors.
d) the quantity of neurotransmitters released.
e) all of the answers are correct.