Which term describes the ability of a muscle cell to be stretched and return to its original shape?
A. Contractility
B. Elasticity
C. Excitability
D. Extensibility
Answer: B
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The somatic nervous system carries impulses from the brain and spinal cord to ________
A) Smooth muscles B) Skeletal muscles C) Cardiac muscle tissue D) All of the above
Which of the following movements is a good example of flexion?
A) opening the mouth B) turning the hand palm upward C) extreme backward bending of the head D) moving the hand toward the shoulder E) spreading the fingers
The simple, or _____________ salivary reflex occurs when chemoreceptors and pressure receptors within the oral cavity respond to the presence of food
Fill in the blank(s) with correct word
The hormone insulin enhances the transport of glucose into body cells. Its secretion is controlled by a negative feedback system between the concentration of glucose in the blood and the cells that secrete insulin. Which of the following statements is most likely to be correct?
A. An increase in blood glucose concentration will stimulate insulin secretion, which will in turn lower the blood glucose concentration. B. A decrease in blood glucose concentration will stimulate insulin secretion, which will in turn increase the blood glucose concentration. C. A decrease in blood glucose concentration will stimulate insulin secretion, which will in turn lower the blood glucose concentration still further. D. An increase in blood glucose concentration will stimulate insulin secretion, which will in turn increase the blood glucose concentration still further.