Chapter 9 The Autonomic Nervous System Flashcards Preview

Biol 66 - Human Physiology 1st midterm > Chapter 9 The Autonomic Nervous System > Flashcards

Flashcards in Chapter 9 The Autonomic Nervous System Deck (8)
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1
Q

Characteristics of Somatic Nervous System

A

Relates to the body
Voluntary
Movement
Muscle cell excitation

2
Q

Characteristics of Autonomic Nervous System

A

Involuntary/unconscious
Regulates cardiac, smooth and glands
Excitation or inhibitory
Sympathetic and Parasympathetic

3
Q

What is the number of neurons from the CNS to effector in both the Somatic and Autonomic system

A
Somatic = 1
Autonomic = 2
4
Q

Name the two neuron organisations in the autonomic system

A

Preganglionic neurons

Postganglionic neurons

5
Q

What do Preganlionic neurons have and where

A

Cell bodies in the CNS

6
Q

What do Postganlionic neurons have and where

A

Cell bodies in the autonomic ganglia

7
Q

List the Sympathetic division

A

NE released from postganglionic neuron
E released from adrenal medulla
ACh released from preganglionic neuron

Causes:
Increased...
Heart rate
Blood glucose concentration
Blood flow to skeletal muscles
Pupil Dilation
8
Q

List the Parasympathetic division

A

ACh released from preganglionic neurons and most postganglionic neurons
Opposite effects:
Slowed heart rate
Dilation of visceral organs blood vessels
Increased digestive activity