Neurons and Nerves
What do sensory neurons do?
Receives and transmits messages to the cns from all parts of the body
Basic functions of the nervous system
Receive sensory input, Integrate and interpret stimuli, Respond to the Stimuli
How many lobes are part of the cerebral cortex?
4
What does the spinal cord act as?
a reflex center
How many pairs of spinal nerves attach to the spinal cord?
31
What is neurology?
Study of the nervous system
What are the 4 lobes of the cerebral cortex
temporal, frontal, occipital, parietal
What does Cerebrospinal fluid do?
Acts as a shock absorber
carries nutrients towards and away from the brain
keeps it moist
What are some nerve pathways?
Resting potential, Action potential, Neurotransmitters, The all or none law
What does the CNS consist of?
The brain and spinal cord
What are the functions of the Cerebellum?
Involuntary movement, Coordination, muscle tone, balance and more
What can cerebrospinal fluid determine?
It can be tested to determine disorders
What is an electroencephalogram used for?
What is a plexus?
A group of spinal nerves.
What are the three parts of the brain stem
The medulla, The pons, The midbrain
What are some accessory structures?
Dura mater, arachnoid membrane, pia mater, cerebrospinal fluid, ventricles
What are the 2 first mnemonic names for cranial nerves?
On > I > Olfactory
Old > II > Optic
What is the automatic nervous system?
It functions independently and without conscious effort. Produces a fight or flight response and produces responses that restore equilibrium.
What does the thalamus and hypothalamus do?
Thalamus- Central relay point for incoming nerve messages
Hypothalamus- Regulates homeostasis, visceral activities, body functions + more
Does short term or long term memory get affected as you age?
Short term gets worse