Renal columns are
A) internal cavities lined by the fibrous capsule.
B) expanded ends of the ureters.
C) the basic functional units of the kidney.
D) bundles of tissue that extend between pyramids from the cortex.
E) conical structures that are located in the renal medulla.
D
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A failure of the palate to fuse medially results in a condition called __________ palate.
Fill in the blank(s) with the appropriate word(s).
After entering the right atrium, the furthest a red blood cell can travel is the ________.
A. right ventricle B. ascending aorta C. superior vena cava D. pulmonary trunk E. left atrium
There are four basic layers of the digestive tract. Arrange them in order from the lumen (deep to superficial)
A) serosa, mucosa, submucosa, and muscularis externa B) muscularis externa, serosa, mucosa, and submucosa C) mucosa, submucosa, muscularis externa, and serosa D) submucosa, serosa, muscularis externa, and mucosa
Hydrochloric acid is a:
A) hydrogen ion acceptor. B) proton acceptor. C) hydrogen ion donor. D) hydroxide ion donor.