What is the principal tissue of the tunica interna?
A. Smooth muscle tissue
B. Loose areolar connective tissue
C. Cardiac muscle tissue
D. Simple squamous epithelium
E. Stratified squamous epithelium
Answer: D
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The optic vesicles are the first eye structures to form during embryonic development, and are the future ________ of the eye.
A. cornea B. sclera C. choroid D. lens E. retina
In the maintenance of the cell resting membrane potential ________.
A) extracellular sodium levels are high B) cells are more permeable to Na+ than K+ C) the steady state involves only passive processes in all cells D) the inside of the cell is positive relative to its outside
Which of the choices below is not a source of glucose during the postabsorptive state?
A) glycogenolysis in the liver B) lipolysis in adipose tissues and the liver C) absorption of glucose from the GI tract D) catabolism of cellular protein
Target cells for releasing hormones are in the
A) thyroid gland. B) hypothalamus. C) anterior pituitary gland. D) posterior pituitary gland.