One neuron and all the skeletal muscles it stimulates is known as a ________
A) sarcoplasmic reticulum
B) motor unit
C) synaptic cleft
D) neuromuscular junction
B
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Which of the following statements does not correctly contrast the female and male reproductive systems?
A. The male reproductive system produces and stores gametes, whereas the female reproductive system only stores gametes. B. The male reproductive system produces gametes from puberty until death of the individual; the female reproductive system normally ceases gamete production during middle age. C. The female reproductive system produces secretions to nourish the neonate; the male reproductive system does not. D. All of the statements are correct.
Which of the following structures would be affected the most by a deficiency in collagen?
A. The epidermis of the skin B. The bones C. The liver and spleen D. The lining of the small intestine
Damage to which lobe of the brain (that normally plans appropriate behavior) has been most frequently associated with personality abnormalities?
A. Parietal B. Temporal C. Frontal D. Occipital E. Insula
The hepatic portal vein does not receive blood from which of the following?
A. The splenic vein B. The superior mesenteric vein C. The pancreatic vein D. The hepatic veins E. The gastric veins