Which organ system excretes nitrogenous wastes?
A. The respiratory system
B. The urinary system
C. The digestive system
D. The integumentary system
E. The cardiovascular system
Answer: B
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The gelatinous core of an intervertebral disc is called the
A) annulus fibrosus. B) nucleus pulposus. C) synovial fluid. D) gelatinous pulposus. E) gelatinous fibrosus.
Label F represents which of the following structures?
A) urinary bladder B) clitoris C) labium minus D) labium majus E) greater vestibular gland
Which of the following statements is not true?
A. The parasympathetic preganglionic fibers are long compared to sympathetic preganglionic fibers. B. There is extensive neuronal divergence in the parasympathetic system compared to the sympathetic system. C. The parasympathetic system is the craniosacral division while the sympathetic is the thoracolumbar division. D. The effects of the parasympathetic system are more local and specific than the widespread effects of the sympathetic system. E. The ganglia associated with the parasympathetic division are located near or within target organs while most of the sympathetic ganglia are near the spinal cord.
Phototransduction is the process in which
A. photoreceptors convert light energy to changes in membrane potential. B. retinal ganglion cells signal changes in the color of light. C. primary visual cortex recognizes and identifies a stimulus. D. bipolar cells signal the presence of contrast in a visual scene.