Within the urinary system, the storage reflex involves
A. contraction of both the detrusor muscle and the internal urethral sphincter.
B. contraction of the detrusor muscle and relaxation of the internal urethral sphincter.
C. relaxation of the detrusor muscle and contraction of the internal urethral sphincter.
D. relaxation of both the detrusor muscle and the internal urethral sphincter.
C
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Answer the following statements true (T) or false (F)
1) A fibrin clot that forms at the surface of a wound to the skin is called granulation tissue. 2) A thickened area of scar tissue covered by a smooth epidermal surface is called a keloid. 3) The perforating canals run perpendicular to osteons. 4) The central canal runs parallel to osteons. 5) Every bone contains relatively large a medullary cavity.
One motor neuron and all the muscle fibers it innervates constitute a __________ unit.
Fill in the blank(s) with the appropriate word(s).
Which vertebrae have transverse foramina?
A. Cervical B. Thoracic C. Lumbar D. Pelvic E. Coccygeal
Which of the following is NOT true of the vagina?
A. It is part of the female external genitalia. B. It receives the penis during intercourse. C. It functions as the birth canal. D. It allows passage of menstrual fluid out of the uterus.