Within the olfactory epithelium, which of the following are regenerative stem cells?
A) olfactory bulbs
B) olfactory glands
C) odorant-binding proteins
D) basal cells
E) olfactory tracts
D) basal cells
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Which of the labeled diagrams shows an atrial septal defect?
a) A b) B c) C d) D e) E
Atrial natriuretic peptide is a hormone that
A. is stimulated to release when blood volume decreases. B. inhibits the release of renin and aldosterone. C. raises blood pressure. D. is released from the adrenal cortex and stimulates atrial hormones.
Synthesis of progesterone in the ovary and testosterone in the testis is stimulated by
A. LH (luteinizing hormone). B. MSH (melanocyte-stimulating hormone). C. TSH (thyroid-stimulating hormone). D. ACTH (adrenocorticotropic hormone). E. FSH (follicle-stimulating hormone).
Sex hormones are produced only by the gonads.
Answer the following statement true (T) or false (F)