Nervous system

Question 1

3 Primary Functions of the Nervous System

Answer 1

1. Reception of sensory input from the internal and external environment
2. Transmission of motor outputs that govern muscular and glandular activity
3. Integration and exchange of information so that the activities of various structures and parts of body are regulated in a coordinated manner.

Question 2

2 Anatomic Systems of the Nervous System

Answer 2

Central Nervous System and Peripheral Nervous System

Question 3

Central Nervous System Function and Major Structures

Answer 3

Function: All sensory information is flowing towards and where all motor information is transmitted out from.
Structures: Brain and spinal cord

Question 4

Peripheral Nervous System Function and Major Structures

Answer 4

Function: To conduct sensory information to the CNS and motor information away to rest of body.
Structures: 12 pair of cranial nerves and 31 pair of spinal nerves

Question 5

2 Primary Function Divisions of Nervous System

Answer 5

Autonomic Nervous System (ANS) and Somatic Nervous System (SNS)

Question 6

Autonomic Nervous System Function and Divisions

Answer 6

Function: In charge of involuntary life processes, like heart beat, respiration, endocrine activity, etc.
Divisions: Sympathetic System and Parasympathetic System

Question 7

Somatic Nervous System Function and Components

Answer 7

Function: Involved in the production of observable events and the environmental changes.
Components: Motor and Sensory Components

Question 8

Sympathetic Nervous System Function

Answer 8

Mobilizes the body for threatening situations, like heart racing, sweating, dilating the eyes, etc.

Question 9

Parasympathetic Nervous System Function

Answer 9

Acts to conserve body’s resources so you can meet the challenges created by the sympathetic response, like slowing heart rate, etc.

Question 10

Motor Component Functions and Divisions

Answer 10

Function: Concerned with execution of bodily functions under voluntary control.
Divisions: Pyramidal and Extrapyramidal Systems

Question 11

Sensory Component Functions

Answer 11

1. Feedback from skeletal muscles
2. Responsible for environmental perception
3. Concerned with other non visceral (not organ) components

Question 12

Pyramidal Functional Division Function

Answer 12

Responsible for initiation of voluntary motor acts, like starting to take a step.

Question 13

Extrapyramidal Function Division Functions

Answer 13

Responsible for background tone and movement supporting the primary motor act (refines the movement).