Thecal and granulosa cells are collectively known as:
a. follicular cells
b. ovulatory cells
c. menstrual cells
d. luteal cells
e. secondary cells
a
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Lymphocytes called __________ T cells attack and kill body cells infected with viruses, bacteria, or parasites.
Fill in the blank(s) with the appropriate word(s).
Which of these happens first in a cholinergic synaptic transmission?
A. Sodium ions enter the postsynaptic cell. B. A postsynaptic potential is produced. C. Acetylcholine diffuses across the synaptic cleft. D. Acetylcholine binds to ligand-gated ion channels. E. The synaptic vesicles release acetylcholine.
Which of the following organelles is not part of the endomembrane system?
A. vesicles. B. mitochondria. C. rough ER. D. Golgi apparatus.
Muscle fibers differ from "typical cells" in that muscle fibers
A) Lack a cell membrane. B) Have many nuclei. C) Are very small. D) Lack mitochondria. E) both B and C