Where in the body are hematopoietic stem cells found?
A. Red bone marrow
B. Spleen
C. Liver
D. Yellow bone marrow
E. Thymus
Answer: A
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Which hormones are formed from chains of amino acids?
A. Proteins and biogenic amines B. Biogenic amines C. Steroids and biogenic amines D. Steroids E. Proteins
The most widely distributed type of sweat gland on the body is (the)
A) apocrine sweat gland. B) myoepithelial gland. C) ceruminous gland. D) merocrine sweat gland. E) None of the answers are correct.
Which of the following statements about prostaglandins is true?
A. Thromboxane A2 induces vasodilation. B. Prostaglandins inhibit inflammation. C. Prostaglandin synthesis is blocked by the actions of caffeine. D. Prostaglandins may contribute to asthma.
Match the eye structure with the appropriate description.A. Blood vessels enter and the optic nerve exits hereB. A small yellow spot near the center of the posterior retinaC. The portion of the retina with the greatest visual acuityD. A jelly-like substance in the posterior cavity of the eyeE. The fluid that fills the anterior cavity of the eyeFovea centralis
Fill in the blank(s) with the appropriate word(s).