The __________ __________ sphincter provides voluntary control over the voiding of urine.
Fill in the blank(s) with the appropriate word(s).
external urethral
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Temporal summation is used in the body to
A. increase the amount of force generated by skeletal muscle fibers. B. activate nearby skeletal muscle fibers, when a muscle fiber is under constant stimulation. C. maintain constant tension in a muscle fiber every time it contracts. D. decrease muscle contraction in muscle fibers, to prevent damage to the cells. E. accomplish all of these functions.
Which condition is characterized by yellowing of the skin and eyeballs?
A. Erythema B. Albinism C. Pallor D. Jaundice E. Bronzing
Development of eggs in females is called ____
a. mitosis b. oogenesis c. spermatogenesis d. cytogenesis
The cells within the thymus gland probably originated from the _____.
A) spleen B) liver C) bone marrow D) Peyer's patches