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56 Cards in this Set

  • Front
  • Back
The central nervous system organ that is found in the skull, controlling many bodily functions.
The brain part controlling many automatic body functions, such as breathing and heart rate.
The body's control center consisting of the brain and spinal cord.
central nervous system
The brain part that coordinates muscle actions and maintains balance.
A neuron that turns a stimulus into a nerve impulse
sensory neuron
The brain part that interprets sense input, controls skeletal muscle movements, and performs complex mental processes.
Any change in the surroundings of an organism that force an organism to react.
A neuron-carried message.
nerve impulse
The division of the nervous system that connects the central nervous system to all body parts.
peripheral nervous system
A neuron that sends messages to muscles, making the muscles contract.
motor neuron
A neuron transporting nerve impulses between other neurons.
A neuron's extension that carries nerve impulses to the body of a cell.
An addictive disorder, associated with excessive consumption of alcohol.
Man-made chemicals that may increase the sizes of muscles and create violent mood swings.
anabolic steroid
A neuron's extension that brings impulses of nerves away from the body of a cell.
The nerve group that controls actions that are involuntary.
autonomic nervous system
The nerve group controlling actions that are voluntary.
somatic nervous system
The membrane forming the separation between the middle and outer ear.
A drug that slows the central nervous system's activity.
Drug misuse for purposes other than the appropriate medical use.
drug abuse
A collection of nerve fibers.
An automatic response that occurs without any control and is conscious.
A stimulus-produced change in behavior or action.
A column of nerve tissue that connects the brain to the peripheral nervous system.
spinal cord
The small space between an axon's tip, the structure next to the axon.
Nerve fibers (axons and dendrites) are bundled together in a ____________?
nerve impulse
True or False:
Depressants increase the body's ability to maintain homestatis.
False (depressants slow down the nervous system impairing its reactions to stimuli)
The central nervous system consists of what two parts of the body?
brain and spinal cord. (nerve impulses are sent to the brain as fast as 250 miles per hour.)
What is NOT part of the brain?
Brain stem, spinal cord, cerebellum or cerebrum.
spinal cord
True or False. Reflex responses originate in the spinal cord?
What are the light-sensitive cells found in the retina?
rods and cones. (rods enable people to see black and white, while cones enable people to see color.)
Aside from hearing, what other function does the inner ear have?
it controls balance - an inner ear problem can make it difficult for a person to walk.
What is NOT one of the body's senses? Tasting, touching, hearing, thinking. Name the other two.
thinking - seeing and smelling
Which of the following drugs is a stimulant? Opium, alcohol, nicotine, television.
nicotine -the nicotine in tobacco causes increase heart rate, blood pressure and breathing rate.
What types of neurons send impulses to the muscles?
motor neuron - this kind of neuron carries impulses that make muscles move.
What is a type of reflex? writing, swimming, blinking or watching the monkeys at the zoo.
Damage to the cerebrum's soft tissue is called __________?
What is a "stimulus?"
an environmental change causing a reaction in an organism.
What connects the body and the central nervous system?
the peripheral nervous system.
The automatic nervous system controls __________.
involuntary movement
What is the scientific name for a nerve cell?
What are the spaces between neurons where impulses travel?
About how many neurons are there in the human brain?
100 billion
Which part of the brain connects it to the spinal cord?
What part of the brain interprets and stores the signals from the senses?
cerebrum - signals are interpreted and stored in the largest part of the brain.
What of the body's senses uses a structure call the hammer?
hammer - a tiny bone in the human body that vibrates.
True or False. Both alcohol and caffeine have a direct effect on the central nervous system.
What part of the eye gives it color?
What part of a neuron carries signals away from the cell body?
axon - a neuron, or nerve cell, consists of a cell body with a necleus, many dendrites and a single axon.
What part of the brain controls breathing?
brainstem - it controls heart rate and other internal organ functions.
True or False. Different taste sensations commonly stimulate different areas of the tongue.
If a drug addict stops taking a drug, they may experience a period of illness called ______________.
What separates the middle ear and outer ear?
Any drug accelerating the processes of the body.
What parts of a neuron receive messages and transmit them to the body of the cell?
dendrites (A neuron is made up of a cell body and small branches called axons and dendrites.)
The adjustment period occurring when a person dependent on drugs stops taking a drug.