Nervous System Flashcards
Define Dendrites
nerve fibres that carry impulses towards the cell body
Define axons
nerve fibres that carry impulses from the cell body
Define impulses
Messages carried by the nervous system
How do the sensory neurones transmit impulses?
From receptors to the CNS
How do the motor neurones transmit impulses?
From the CNS to effectors
Define Synapse
Location where a neurone can
transfer an impulse to another
cell
Define Reflex arc
direct route from a sensory
neurone, to an interneuron, to an effector
Somatic reflex arc
Involuntary response that involves the skeletal muscles of the body
Autonomic reflex arc
Involuntary response that involves the internal organs of the body
Another name for the brain stem
Medulla oblongata
What is the largest part of the brain?
Cerebrum
What does the cerebrum control?
Reading, thinking, learning, speech, emotions, planned muscle movements
Where is the cerebellum?
In the back of the brain
What does the cerebellum control?
Balance, coordination, fine muscle control
Where is the medulla oblongata?
At the bottom of the brain
What does the medulla oblongata control?
Autonomic activities
What does the hypothalamus control?
Water balance and temperature
What 2 divisions is the autonomic nervous system divided into?
Sympathetic and parasympathetic nervous system
