Nervous System Flashcards
0
Q
Structure of nervous
A
Comprises the brain
Contained within the cranial cavity
Nerves run out from the both if the brain.
Sensory neurone convey
Motor neurons convey
Sensory neurons carry info from the sense organ
Nervous system cws all those neurons whose cell bodies
1
Q
Nervous system
A
Complac of nerve cells
Supporting glial cells
Aspects of behaviour
Higher thought processes
2
Q
The brain
A
Receives varity of sources
I’m components
Cerebral cortex , midbrain and brainstem
3
Q
Cerebral cortex
A
Folded sheet of neurons Covers 2 hemispheres Higher speech 4 lobes Frontal - movement Parietal - sense Occipital - visual Temporal - emotion
4
Q
Midbrain
A
Links to cerebral context
Sensory info
Brainstem
5
Q
Brain stem
A
Comprises pons, medulla and cerebellum Important for nuclei Motor fiction Chewing, touch and pain Respiratory and cardio regulation
6
Q
Spinal cord
A
Convey info from brain 31 pairs of spinal nerves Spinal nerve is formed from the fusion Sensory axons into the spinal cord Motor axon
7
Q
Peripheral nervous system
A
Somatic - sensory
Autonomic - gland
8
Q
Somatic
A
Spinal nerve
Higher and lower nerve ole uses
Body to reach tagert regions
9
Q
Autonomic
A
Increased heart rate Dilation of arteries to the heart Decreased blood flow to the skin Increased blood flow to muscles Dilation of airways Sweating. Polo erection and reduced blood flow to gi Tract
