In addition to temperature control, blood flowing to the skin supplies a source of ____________________
Fill in the blank(s) with correct word
nutrition
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Which of the following is not true?
A. The vagus nerves carry parasympathetic innervation to the heart. B. Without vagus nerve innervation, the heart rate would be about 100 beats per minute. C. The cardiac nerves carry parasympathetic innervation to the heart. D. Sympathetic innervation increases the speed and force of contraction. E. Fibers of the vagus nerves lead to the SA and AV nodes.
Synovial fluid
A. increases friction between bones. B. is produced by articular cartilage. C. lacks cells. D. decreases friction between bones. E. is found between all bony junctions.
Match the cell membrane structure to its description: Tight junction.
A)Adjacent cells held together by connexon proteins that form cylinders allowing ion flow between the cells' cytoplasm B)Adjacent cells joined by a line of membrane proteins that form an impermeable junction C)None of the listed responses is correct. D)Buttonlike junctions that use linker proteins to hold adjacent cells together
The shape of an infant’s vertebral column at birth is
A. convex dorsally. B. convex anteriorly. C. concave dorsally. D. A combination of a and c