The primary factor responsible for moving the chyme forward in the small intestine is
a. mass movement
b. migrating motility complex
c. a gradient in the frequency of segmentation along the length of the small intestine
d. sequential ring-like contractions that move progressively forward along the length of the small intestine in a stripping motion, pushing the chyme ahead of the contraction
e. stimulation of the intestinal smooth muscle by enterokinase
C
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Which of the following is an example of pathological metaplasia?
A. Atrophy of skeletal muscle fibers due to disuse B. The development of a tumor C. The change in the lining of the vagina from simple cuboidal epithelium to stratified squamous epithelium at puberty D. A transformation of ciliated pseudostratified columnar epithelium to stratified squamous epithelium in respiratory passageways of smokers E. The blebbing and rupture of cell plasma membranes by viruses
Wallerian degeneration involves the breakdown of
A. the segments of axon and myelin sheath between the site of damage and the peripheral effector. B. the segments of axon and myelin sheath between the site of damage and the cell body. C. the neurilemma both central and peripheral to the site of trauma. D. macrophages and microglia that have completed the job of CNS cleanup after trauma.
Podocytes are cells with foot-like processes called pedicels. Podocytes are found in the
A. basement membrane of the glomerulus. B. visceral layer of the glomerular capsule. C. periphery of the distal convoluted tubule. D. endothelium of the glomerulus.
__________ hormone targets the kidney and promotes retention of urine.
Fill in the blank(s) with the appropriate word(s).