Phagocytosis is important for ________.
A. removal of old and dying cells
B. body defense against foreign organic matter
C. promoting inflammation
D. All of the choices are correct.
Answer: D
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The conversion of stimuli into neuron potentials
a. requires an adequate level of stimulus. b. is called transduction. c. stems from generation of receptor potentials. d. all of these answers. e. none of these answers.
The respiratory membrane is composed of:
A. the alveolar sacs and pulmonary arteries. B. the alveolar membrane, the capillary wall, and their fused basement membrane. C. the fusion of the type I cells and type II cells in the lungs. D. the cells found between the alveolar pores.
________ glands (such as tear glands) have vesicles that release their secretion via exocytosis. ________ glands (such as oil-producing glands) secrete a mixture of disintegrated cells and their products
A) Cytogenic; Apocrine B) Mucous; Cutaneous C) Merocrine; Holocrine D) Endocrine; Exocrine E) Mucous; Serous
which muscles are neck extensors? select all that apply.
a) scalenes b) semispinalis muscles c) sternocleidomastoid d) trapezius e) splenius muscles