In response to high blood pressure, stretch receptors called ________ in the walls of arteries carrying blood to the head will trigger a reflex that causes the heart to ________ its beats per minute.
A. proprioceptors; increase
B. chemoreceptors; increase
C. baroreceptors; increase
D. baroreceptors; decrease
E. proprioceptors; decrease
Answer: D
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Drinking, a behavioral effector of homeostatic control of body fluid levels, involves which of the following physiological systems?
a. nervous b. endocrine c. muscular d. skeletal e. all of these
Which of the following reasons explains why channels are required in membranes in order for neurons to perform their function?
a. Neurons have to function in reception (e.g. sensory); therefore, they must be able to switch channels in order to get the appropriate information. b. The lipid bilayer is impermeable to ions and polar molecules, and ion flow through the membrane is essential for nervous transmission of information. c. Channels permit the flow of water through the membrane, and water is necessary for hydrolysis reactions in the cytoplasm. d. Channels are required in order to keep Ca2+ levels low inside the cytoplasm.
Identify the type of synovial joint that the hip joint represents.
a. Ball-and-socket b. Hinge c. Ball-and-saddle d. Ellipsoid e. Saddle
During the second phase of the antibody-mediated immune response, what is formed?
A) memory cells B) agglutinogens C) immunoglobulins D) antigens