Which muscle has three attachments to bone?
A) mylohyoid
B) stylohyoid
C) sternocleidomastoid
D) thyrohyoid
E) sternohyoid
C) sternocleidomastoid
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The appendicular skeleton contains ________ bones.
A) 80 B) 206 C) 126 D) 64 E) 62
Why are polar bodies produced during oogenesis?
A. To lessen the amount of estrogen that is produced during the ovarian cycle B. To hasten ovulation C. To discard excess cytoplasm D. To discard excess chromosomes E. To increase the chances of sperm penetration
The motor pathways of the autonomic nervous system
A) show a neuronal organization like that of the somatic nervous system. B) contain both upper and lower motor neurons. C) control visceral effectors, such as smooth and cardiac muscle and glands. D) include only neurons located in the brain or spinal cord. E) All of the answers are correct.
An antigen is ______, whereas an antibody is ______
A) only on a pathogen; only in a human body B) a foreign substance such as a protein or a polysaccharide to which lymphocytes respond; a globular protein that reacts with an antigen to eliminate the antigen C) an immunoglobulin that is produced by lymph nodes in response to bacteria; a foreign protein that enters the body and causes an immune reaction D) a hapten molecule that is complex in shape; an enzyme produced by the thymus gland that neutralizes antigens