All these substances account for the gelatinous consistency of connective tissue ground substance except
A) glycosaminoglycans (GAGs).
B) proteoglycans.
C) chondroitin sulfate.
D) Hyaluronic acid.
E) Collagen.
Ans: E) Collagen.
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Intramembranous ossification
A) produces flat bones, as in the bones of the roof of the skull. B) explains how a juvenile's bone can grow in length. C) occurs in the diaphysis of a long bone. D) occurs inside a bag of cartilage. E) occurs in all bones before birth.
Which structure is most likely to be penetrated during a subclavian vein puncture if the needle is inserted too far posteriorly?
A) internal jugular vein B) common carotid artery C) subclavian artery D) lateral cord of brachial plexus E) thoracic duct
How many alleles exist for a given gene?
A) always one allele per gene B) only two C) each gene can have a different number of alleles D) two from each parent
CRH stimulates the release of
A) ACTH. B) DHEA. C) MSH. D) cortisol. E) None of these answers are correct.