The white material that reduces friction at the ends of bones is called
A. the epiphysis.
B. articular cartilage.
C. the periosteum.
D. the endosteum.
E. white matter.
Ans: B. articular cartilage.
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A heartbeat begins with an electrical impulse generated by the ________
A) sinoatrial (SA) node B) Purkinje fibers C) atrioventricular (AV) bundle D) atrioventricular (AV) node
In ovulation, after expelling the oocyte the follicle becomes a ________ and secretes ________
A) corpus albicans; progesterone B) corpus luteum; FSH and LH C) corpus albicans; FSH and LH D) corpus luteum; estrogen and progesterone E) corpus albicans; estrogen and progesterone
The concentration of a particular antibody within the blood is referred to as the antibody ________
Fill in the blank with correct word.
The pituitary hormone that promotes egg development in ovaries and sperm development in testes is
A) TSH. B) ACTH. C) FSH. D) LH. E) GH.