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
D. A transformation of ciliated pseudostratified columnar epithelium to stratified squamous epithelium in respiratory passageways of smokers
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At the hepatic flexure, the:
a. transverse colon becomes the descending colon b. descending colon becomes the transverse colon c. ascending colon becomes the transverse colon d. ascending colon becomes the descending colon
Hypertension is often treated with drugs that increase total peripheral resistance.
Answer the following statement true (T) or false (F)
During the fetal period, sebum from the sebaceous glands mixes with the cells of the sloughed off periderm to form the vernix caseosa.
Answer the following statement true (T) or false (F)
Which of the following tracts does NOT carry sensory stimuli?
a. Anterolateral system b. Corticospinal tracts c. Posterior columns d. Spinocerebellar tracts