Human Nervous System. Flashcards
1
Q
Central Nervous system:
A
Brain + Spinal Cord.
2
Q
Peripheral nervous system.
A
Consists of Somatic and Autonomic nervous system.
3
Q
Somatic Nervous System.
A
Voluntary actions.
Consists of Sensory and Motor neurons.
4
Q
Sensory Neurons
A
Afferent; sends messages towards the brain.
5
Q
Motor Neurons.
A
efferent; sends messages away from the brain and to the body.
6
Q
Autonomic nervous system.
A
Involuntary actions.
eg. breathing.
Consists of sympathetic and parasympathetic.
7
Q
Sympathetic nervous system.
A
Activated in times of danger.
Fight or Flight response.
Heart rate increases, and pupils dilate.
8
Q
Parasympathetic nervous system.
A
Homeostasis - level of calm.
