Divisions ofThe Nervous System Flashcards
What does the Central nervous system contain?
Brian and spinal cord
What does the Peripheral nervous system contain?
12 pairs cranial nerves
31 pairs spinal nerves
Each may contain fibres of the various divisions
CNS and rest of body
What does the afferent division do?
carries info. into the CNS
What does the Afferent somatic division contain?
Neurons from skin and muscle
What does the Afferent visceral division contain?
Neurons from internal organs
What does the Efferent division do?
Carries info. away from CNS
E for Exit
Where does the Efferent somatic division carry info to?
To the skeletal muscle
Where does the Efferent autonomic division carry info to?
Impulses to heart and involuntary muscles and glands
What does Efferent autonomic parasympathetic division do?
Maintain body during quiet conditions
What does the Efferent autonomic sympathetic division do?
Prepares body for action