All of the following have the stratum lucidum layer of the epidermis except which one?
A. Thin skin
B. Skin with no hair
C. Thick skin
D. Skin on the palms of hands
Answer: A
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The connective tissue wrapping that surrounds bundles (fascicles) of axons is the
A. epineurium. B. endoneurium. C. perineurium. D. endosteum. E. periosteum.
Answer the following statements true (T) or false (F)
1. The electrolyte iodine is important in the production of thyroid hormones. 2. The electrolyte iron is important in the production of hemoglobin. 3. Where sodium goes, water follows. 4. The most abundant positive ion in the blood is calcium. 5. The most abundant negative ion in the blood is chloride.
An isometric contraction is described as
A. action potential frequency is high enough that no relaxation of muscle fibers occurs. B. a muscle produces constant tension during contraction. C. a muscle produces an increasing tension as the length remains constant. D. a muscle produces increasing tension as it shortens. E. a muscle produces tension, but the length of the muscle is increasing.
The amount of blood pumped out of a ventricle in one minute is the
A. cardiac output. B. heart rate. C. cardiac cycle. D. stroke volume.