Nervous System
These are the two parts of the nervous system
Peripheral and Central
This is the main connection between the brain and the rest of the body
spinal cord
Embedded in the retina. Rods and cones
Photoreceptor
What are the four lobes of the brain
frontal, parietal, occipital, and temporal
Regulates body activities under conscious control
Somatic Nervous system
Neurons that carry impulses to the spinal cord/brain
Sensory neurons
This regulates flow of information between the brain and body
Brain stem
The peripheral nervous system is divided into what
The sensory and motor division
Used for hearing and smell
Temporal lobe
This division transmits impulses directly from central nervous system to muscles and glands
Motor division
Carry impulses from brain/spinal cord to other parts of the body
Motor neurons
These are the three parts of the brain stem
medulla oblongota, pons, mid brain
The two main functions of the ear
Hearing and balance
Controls hunger, thirst, anger, body temp, and fatigue. It also coordinates the endocrine system.
Hypothalamus
Is the outer layer of the cerebrum's outer layer of nerve cell bodies, which look like grey matter because they lack myelin sheaths
Cerebral cortex
Axons and dendrites of different neurons are clustered in bundles
Nerves
Controls somatic actions has sites for learning, judgement, and intelligence.
Cerebrum
How does the myelin sheath affect the speed at which an impulse travels
Speeds it up by allowing the impulse to jump from node to node.
Used for evaluating consequences, making judgements, and formulating plans
Frontal lobe
Regulates activities under involuntary control
Autonomic control
This is what happens when you pull your hand from a hot pan
reflex
Coordinates actions of muscles and balance
Cerebellum
Specialized cell that transmits signals to the sensory neurons
Sensory receptor
For reading and speech
Parietal lobe
Where are brain impulses carried
From motor neurons to effector muscles