nervous system + animal behavior Flashcards
(34 cards)
the way an organism acts.
behavior
something in the environment which causes a behavior.
stimulus
the action of an organism as a result of a stimulus
response
an involuntary action controlled by the spinal cord.
reflex
inborn behaviors involving the brain.
instinct
training an organism to show a response to a stimulus that would not usually react to.
conditioning
behaviors learned by experience or by making mistakes
trial and error
the ability to remember past experiences and use them to solve new problems.
reasoning
the complex of nerve tissues that controls the activities of the body. includes brain and spinal cord.
central nervous system
a nerve cell.
neuron
consists of all the nervous tissue that lies outside the central nervous system.
peripheral nervous system
carry nerve impulses from tissues and organs to the spinal cord and brain.
motor neuron
extend from the cell body and receive nerve impulses from other neurons.
dentrite
a long extension of the cell body that transmits nerve impulses to other cells.
axon
acts like a layer of insulation. similar to the plastic that encases an electrical cord.
myelin sheath
the place where an axon terminal meets another cell.
synapse
a recurring cycle in the physiology or functioning of an organism, such as the daily cycle of sleeping and walking.
biorhythm
a consistent way of thinking or behaving acquired through repetition.
habit
3 functions of the nervous system
- reasoning, logic
- movement
- breathing, body temp
structures which are part of the central nervous system
brain;
1. cerebrum 2. cerebellum 3. brain stem
what is the function of the sensory division of the PNS?
it carries sensory information from the body to the central nervous system
what is the function of the sonomic nervous system?
it controls mainly voluntary activities that are under conscious control.
what is the function of the autonomic nervous system?
it controls all the involuntary activities not under conscious control.
what type of drugs slow down the activity of the CNS?
depressants