Which of the following is NOT true of involuntary reflex responses?
A. They involve fewer neurons than voluntary responses.
B. They occur more slowly than voluntary responses.
C. They require the stimulation of specific receptors.
D. They do not require input from the cerebral cortex.
E. They require the transmission of nerve impulses.
Answer: B
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a. afferent neurons b. efferent neurons c. motor neurons d. interneurons
The amount of rough ER is greater in cells producing large amounts of protein for secretion
Indicate whether this statement is true or false.
Which of the following events occurs during expiration?
a. diaphragm moves upward b. thoracic volume increases c. external intercostal muscles contract d. ribs are elevated e. phrenic nerve is inactive
Reticular cells originating from an embryonic epithelium are found in the:
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