The granulations that appear during the healing of a large, open wound are composed mainly of
A. blood clots.
B. phagocytic cells.
C. scar tissue.
D. fibroblasts surrounding blood vessels.
Answer: D
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The__________ glands are small ovoid glands typically located on the posterior side of the thyroid gland.
Fill in the blank(s) with the appropriate word(s).
Smooth endoplasmic reticulum has ribosomes and rough endoplasmic reticulum does
not. Indicate whether the statement is true or false
The bending movements of cilia and flagella
a. are accomplished by alternate solation and gelation of the cytosol. b. involve the alternate assembly and disassembly of actin filaments. c. are produced by the sliding of adjacent microtubule doublets past each other. d. are important in providing motility for many organisms but are not of any use in humans. e. none of these answers.
The congenital heart defect most often associated with Down syndrome is
A) ventricular septum defect. B) patent foramen ovale. C) tetralogy of Fallot. D) atrioventricular septal defect. E) transposition of the great vessels.