1

Question 1

ANS

Answer 1

Autonomic nervous system

Motor division of peripheral nervous system. Controls visceral activities with the goal of maintaining internal homeostasis . Controls smooth, cardiac muscles and glands

Question 2

Provides motor fibers to skeletal muscles

Answer 2

Somatic nervous system

Question 3

Provides motor fibers to skeletal muscles

Answer 3

Somatic nervous system

Question 4

Describe efferent pathway for somatic division

Answer 4

Single motor neuron makes efferent pathway from CNS to effectors

Question 5

Difference between ANS and somatic divisions in regards to stimulation

Answer 5

ANS can stimulate or inhibit effectors,
Somatic always stimulates

Question 6

Explain efferent pathway of autonomic division

Answer 6

2 neuron chain.
Has cell bodies of preganglionic neurons in CNS. Postganglionic neuron cell bodies are in ganglion

Question 7

What is the neurotransmitter of somatic motor neurons

Answer 7

ACh

Question 8

Which neurotransmitters are released by autonomic motor neurons

Answer 8

ACh and NE (norepinephrine) may excite or inhibit target cells

Question 9

Divisions of ANS that are antagonistic

Answer 9

Sympathetic and parasympathetic

Often target many of same organs

Question 10

Function of parasympathetic division

Answer 10

Conserve body energy
Maintain body activity at basal level

Question 11

Parasympathetic effectd

Answer 11

Constricted pupils
Glandular secretions

Increased digestive tract motility
Smooth muscle activity leading to elimination of feces and urine

Question 12

Vasoconstriction

Answer 12

Sympathetic
Shunts blood from skin and digestive viscera to heart, brain and skeletal muscle