Which of the following statements concerning the micturition reflex is false?
A. Afferent signals are conducted to the sacral segments of the spinal cord by the pelvic nerves.
B. The micturition reflex is modified by centers in the pons and cerebrum.
C. Efferent signals are sent to the bladder by sympathetic fibers in the pelvic nerve.
D. The micturition reflex is initiated by stretching the bladder wall.
E. The micturition reflex usually produces a series of contractions of the urinary bladder.
Answer: C
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Cartilaginous joints
A. allow the most movement between bones. B. are found in the lower leg. C. are not found in the pelvic region. D. are common in the skull. E. unite two bones by means of fibrocartilage or hyaline cartilage.
What structure does "B" represent on the diagram of the plasma membrane?
A. internal membrane surface B. membrane channel protein C. phospholipid bilayer D. peripheral protein E. integral protein
Which of the following types of abnormal contractions of skeletal muscle may be caused by holding a position for a prolonged period?
a) spasm b) fasciculation c) tremor d) fibrillation e) cramp
Using the figure below, identify the labeled part.
1) Label A: ______________________________
2) Label B: ______________________________
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27) Label AA: ______________________________