Sergio needs to reach the bowls on the top shelf, which are slightly out of reach. Which type of movement below would give him the greatest chance of success in reaching the bowls?
A.
dorsiflexion
B.
plantar flexion
C.
inversion
D.
eversion
E.
circumduction
B
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The intertubercular groove
A. is located on the anterior radius. B. is the groove between the olecranon and coronoid processes. C. is a groove between the lateral and medial epicondyles of the distal humerus. D. is a groove separating the greater and lesser tubercles of the humerus.
A laboratory rat has an electrode implanted in its brain. By pressing a metal bar in its cage, the animal can activate the electrode. You are analyzing the data from the most recent experiment day and find that the rat pressed the bar over and over again. The rat did not even eat during the experimental period because it was too busy pressing the bar. In which location is the electrode likely to be implanted?
A. Occipital lobe B. Frontal lobe C. Hypothalamus D. Mesolimbic system E. All of the choices are possible locations of the electrode.
Which of the following statements best describes the structure of the blood-brain barrier that provides its functional characteristics?
a) Processes of astrocytes wrap tightly around capillaries in the brain. b) Tight junctions tightly seal endothelial cells of capillaries in the brain. c) Gap junctions tightly seal endothelial cells of capillaries in the brain. d) Spot desmosomes tightly link capillary endothelial cells together. e) The basement membrane of capillaries in the brain contains extremely small pores.
B cells divide and differentiate into _________, which produce and secrete antibodies
A) megakaryocytes B) plasma cells C) antibodies D) T cells