Which muscles make up the pelvic diaphragm?
A) levator ani (iliococcygeus and pubococcygeus), coccygeus, and external anal sphincter
B) deep transverse perineal muscle and external urethral sphincter
C) bulbospongiosus, ischiocavernosus, and superficial transverse perineal
D) bulbospongiosus, coccygeus, and deep transverse perineal muscle
E) ischiocavernosus, external urethral sphincter, and external anal sphincter
Answer: A
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The skeletal muscle complex known as the triad consists of
A) actin, myosin, and titin filaments. B) a transverse tubule and two terminal cisternae. C) filaments, myofibrils, and sarcomeres. D) A bands, H bands, and I bands. E) actin, myosin, and sarcomeres.
The coxal joint is a ball-and-socket joint, in which the head of the humerus articulates with the glenoid cavity of the scapula.
Answer the following statement true (T) or false (F)
What results when the corpus callosum is cut?
A) Communication between the brain and spinal cord would be impaired. B) Communication between the right and left cerebral hemispheres would be impaired. C) Communication within a single brain hemisphere would be impaired. D) Communication between a cerebral cortex in one hemisphere with other areas of the same hemisphere would be impaired.
Blood from the face and scalp is drained by the
A. cephalic vein. B. superior vena cava. C. subclavian vein. D. external jugular vein.