Anatomy and Physiology Study Guide: Autonomic Nervous System (Red Book)

All of the following are effects of the sympathetic nervous system except: a. decrease in saliva b. heart rate goes up c. blood pressure increases d. increase in sweat

a. decrease in saliva

Which of the following is not an effect of the parasympathetic division? a. increase in heart rate. b. intestine relaxes c. blood pressure decrease d. construction of pupils

a. increase in heart rate

Which of the following is myelinated and a portion is located in the CNS? a. preganglionic neurons b. postganglionic neurons c. postganglionic fiber d. spinal nerve

a. preganglionic neurons A spinal nerve is located in the PNS. A postganglionic fiber is an unmyleinated axon that is part of the postganglionic neuron.

Which of the following is not a characteristic of a postganglionic fiber? a. it is an axon b. it is myelinated c. it is unmyelinated d. it is located in the pns

b. it is myelinated

Which of the following is an autonomic motor neuron that has a myelinated? a. cell body b. postganglionic fiber c. preganglionic neuron d. postganglionic neuron

c. preganglionic neuron A preganglionic fiber is also known as a myelinated axon. Postganglionic neurons are completely located int he PNS. The cell body of a preganglionic neuron is located in the CNS.

Which of the following is not controlled by the autonomic nervous system? a. smooth muscle b. cardiac muscle c. skeletal muscle d. specific muscle

c. skeletal muscle The autonomic nervous system is composed of the parasympathetic and sympathetic divisions. The autonomic nervous system is not usually under voluntary control.

Which of the following is part of the peripheral nervous system? a. somatic nervous system b. parasympathetic divison c. sympathetic division d. all of the above

d. all of the above The sympathetic division of the autonomic nervous system is the fight-or-fiight division. Some effects of this division include an increase in heart rate, increase in blood pressure, dilation or enlargement of the pupils of the eyes, and the break down of fat in the body. Some effects of the parasympathetic division of the autonomic nervous system include a decrease in heart rate, increase in saliva, constriction of pupils and decrease in blood pressure

All of the following are locations of the cell bodies of preganglionic neurons for the parasympathetic division except: a. nuclei of cranial nerve 3 b. nuclei of cranial nerve 7 c. nuclei of cranial nerve 9 d. cell body in lateral gray horn of t10

d. cell body in lateral gray horn of t10 The nuclei of cranial nerve 10 and the lateral gray horns of segments s2-s4 are the other locations of the cell bodies of preganglionic neurons for the parasympathetic division. The cell bodies of preganglionic neurons in the sympathetic division are located in the lateral gray horns from segments t1-l2. The sympathetic division is also referred to as the thoracolumbar division, and the parasympathetic division is also identified as the craniosacral division.

Th somatic nervous system regulates which of the following? a. glands b. smooth muscle c. cardiac muscle d. skeletal muscle

d. skeletal muscle