Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
What is the Nervous System?
|
The master controlling and comminicating system of the body.
|
|
|
What are the nervous systems three functions?
|
Senory input
integration motor output |
|
|
sensory output
|
Monitors stimuli from environment.
|
|
|
Integration
|
Interprets sensory output
|
|
|
Motor output
|
Orchestrates response to stimuli.
|
|
|
The nervous system is divided into what 2 subgroups?
|
Central nervous system (CNS)
Peripheral nervous system (PNS) |
|
|
What is the central nervous system composed of?
|
The brain and the spinal cord.
|
|
|
What is the peripheral nervous system composed of?
|
paired spinal and cranial nerves (e.g optic nerve).
|
|
|
What is the main function of the CNS?
|
integration and command center.
|
|
|
What is the main function of the PNS?
|
Carries messages to and from the spinal cord and brain.
|
|
|
What are the 2 functional divisions of the PNS?
|
Sensory (afferent) division
Motor (efferent) division |
|
|
What types of fibers is the Sensory (afferent) division of the PNS? What are their functions?
|
Sensory afferent fibers- carry impusles from skin muscles and joints to the brain.
Visceral afferent fibers- transmit impulses from visceral ograns to the brain. |
|
|
What is the main function of the Motor (efferent) division of the PNS?
|
transmits impulses from the CNS to effector organs (e.g. viseceral organs, muscles).
|
|
|
What are the 2 main parts of the motor division of the PNS?
|
Somatic Nervous System
Autonomic Nervous System (ANS) |
|
|
What is the main function of the Somatic Nervous System?
|
Concious control of skeletal muscles.
|
