Glucosamine and chondroitin are
A) dietary supplements from human cadavers.
B) dietary supplements from shells and cow cartilage.
C) dietary supplements from fish skeletons.
D) proteins found in joints that are taken as dietary supplements.
B
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Extension (or straightening) of the elbow stops when the proximal end of the ulna engages the ________
A) medial epicondyle of the humerus B) olecranon fossa of the humerus C) coronoid fossa of the humerus D) trochlea of the humerus
Which labeled structure in the figure is a metarteriole?
a) A b) B c) D d) F e) E
__________ are white blood cells that differentiate into macrophages.
Fill in the blank(s) with the appropriate word(s).
Compared to the young, elderly individuals have ________ epidermal dendritic skin cells.
A. more B. fewer