Cardiac muscle has very little capacity for regeneration because it lacks ________
A) somatic nerve fibers
B) sarcomeres
C) satellite cells
D) dense bodies
E) an endomysium
C
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The two lines, one vertical and one horizontal, that divide the abdominopelvic area into quadrants cross at the
A) umbilicus/navel.
B) urinary bladder.
C) junction of the small and large intestines.
D) diaphragm.
E) sternum.
Which of the following GFR-regulating mechanisms is initiated by cells of the juxtaglomerular complex?
a) renin-angiotensin system b) autonomic regulation c) myogenic mechanism d) natriuretic peptides
If the receptive fields of the skin's receptors were smaller, then
A. precision would be greater, and we would not need as many receptors to monitor the environment for stimuli. B. precision would be greater, but we would need more receptors to monitor the environment for stimuli. C. precision would be lessened, and we would need more receptors to monitor the environment for stimuli. D. precision would be lessened, but we would not need as many receptors to monitor the environment for stimuli.
Which of the following statements about the syncytiotrophoblast is false?
A. It forms the developing embryo. B. It is composed of a non-dividing, multinucleated cell. C. It is nonantigenic, so that it triggers no immune response. D. It invades the maternal tissues that compose the endometrium of the uterus. E. It forms lacunae.