An action potential results from which of the following?
A. The diffusion of neurotransmitters across the plasma membrane
B. The diffusion of ions across the plasma membrane in the soma
C. The diffusion of ions across the plasma membrane of the axon
D. The exocytosis of potassium ions
E. The endocytosis of neurotransmitters
C. The diffusion of ions across the plasma membrane of the axon
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Which of the following is not a factor that binds cells together?
A) special membrane junctions B) glycoproteins in the glycocalyx C) glycolipids in the glycocalyx D) wavy contours of the membranes of adjacent cells
Which layer of the epidermis is composed of a single row of highly mitotic keratinocytes?
A. The stratum spinosum B. The stratum lucidum C. The stratum corneum D. The stratum basale
Which of the following is NOT an effector controlled by the autonomic nervous system?
A. Cardiac muscle B. Skeletal muscle C. Smooth muscle in the digestive system D. Smooth muscle in blood vessels E. Glands
How is colostrum different than breast milk?
A) It has one-third the number of immunoglobulins. B) It has one-third less fat. C) It has one-third less lactose. D) It has one-third less protein.