What is the function of the nervous system?
Input→Intergration→Motor Output
What are the two divisions?
Central Nervous System (cns) and the peripheral nervous system (pns)
What is the the CNS?
The brain and spinal cord
What is the PNS?
Nerves that lead to and from the CNS?
Features of the Cerebrum
Gyri and sulci
Gyri
Bumps
Sulci
Grooves of the brain
What is white matter in the brain?
Cells that contain a fatty insultiong layer called (myelin)
What is grey matter?
Cells that lack myelin
What is the function of the Cerebral cortex?
It is the outer layer of cerebrum involved with higher level thinking (ex. decision making)
What type of matter is the cerebral cortex made of?
Grey matter
What is the longitudinal fissure?
Deep grove that separates the two halves of the cerebrum
Cerebral hemispheres
the two halves
What are the regions of the cerebrum?
Frontal lobe, parietal lobe, occipital lobe, and temporal lobe
What is the function of the frontal lobe?
Its is an output center that regulates personality, speech, higher orders of thinking, and morals and ethics.
What is the motor area?
It controls voluntary muscle movement
Where is the motor area?
In the frontal lobe?
What is the function of the parietal lobe?
It is an input center that integrates sensory information such as touch (includes pain and coldness)
What is the function somatosensory area?
It perceives touch information and control specific movements in body
Where is the somatosensory area located?
In the parietal lobe?
What is function of the temporal lobe?
Processes hearing information
What is the function of the occipital lobe?
Processes visual information
What is the function of the corpus callosum?
It connects the right and left cerebral hemispheres which allows them to communicate with each other
What does the limbic system consist of?
The hippocampus and the amygdala
How does the hippocampus work?
it processes long-term memory and emotional responses
How does the amygdala work?
It processes emotional memories; particularly fear
What is the function of the thalamus?
It relays sensory information to the correct part of the cerebrum
What is the function of the hypothalamus?
It works with the pituitary gland to regulate feeding, fleeing, fighting, and mating
What is the purpose of the cerebellum?
Regulation of balance and motor movements
What is the function of the brain stem?
Regulation of basic physiological processes such as heart rate and breathing
What is cerebrospinal fluid
It cushions the brain within skull?
What is the function of ventricles?
It produces and stores cerebrospinal fluid
What is dura mater?
Outer protective layer of the brain; tough, white, and opaque (connective tissue)
what is pia mater
Inner protective layer; things and transparent (connective tissue)