easy
What is the Nervous System?
network of cells that carries info to and from all parts of the body
inside the vesicles are chemicals in the fluid
neurotransmitters
what does the Nervous system work together to produce?
behavior, thought, and action
what is the vocab word?
- this is produced by glands with internal secretion
- carries signals through blood to target organs
hormones
What is a neuron and its function
a nerve cell in the Nervous system; it receives and sends messages within that system
what is the dendrite's function
extensions leading toward soma that receives signal from other neurons and send them to cell body
what two systems is the autonomic nervous system divided into?
sympathetic and parasympathetic division
define leisioning
intentional damage/abnormal change in tissue usually caused by injury/diseases to see how behavior changes
what is the axon and its function
- a long strand attached to soma
- carries messages away from soma
define synapse
a space between nerve cells
brain - interprets and stores info and sends orders to muscles, glands, and organs
spinal cord - pathway that connects the brain and the peripheral nervous system
what is the medulla and pons and its functions
medulla - base of brainstorm; controls heartbeat and breathing
pons - part of brainstorm that links medulla oblongata and thalamas
what does the central nervous system contain?
the brain and spinal cord
what is the vocab word?
this connects your brain and spinal cord to the rest of your body
peripheral nervous system
what is the function of the myelin sheath?
insulate & protect nerve fibers and increase speed of neural message tracking down the axon
what is the soma
the cell body in a neuron that holds the nucleus and other organelles
what is neuroplasticity?
the ability of the brain to change both the structure and function of many cells in response to experience, trauma, etc.
what is the difference between the somatic and autonomic nervous systems?
somatic = controls the voluntary muscles of the body
autonomic = controls the involuntary muscles, organs, and glands
the major neurotransmitters are...
(hint: there are 7)
glutamente, serotonin, dopamine, GABA, norepinephrine, endorphin, acetylcholine
what is action potential
a membrane potential of a cell that rapidly rises and falls. an electrical charge reversal