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The Nervous System
N/A
45
Biology
10th Grade
02/23/2010

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Cards

Term
List the three functions of the Nervous System.
Definition
1.Pick up sensory information
2.Transmit and interpret information
3.Coordinate responses
Term
Stores memory and interprets senses
Definition
Cerebrum
Term
Helps with balance and coordination, also maintains muscle tone
Definition
Cerebellum
Term
The site where cranial nerves cross over
Definition
Pons
Term
Controls heart rate, breathing rate, and dilates blood vessels
Definition
Medulla Oblongata
Term
Controls other glands, and growth hormones
Definition
Pituitary Gland
Term
Controls the Pituitary gland, regulates heartbeat, body temperature, along with appetite, thirst, sleep, rage, and anger.
Definition
Hypothalamus
Term
Relays sensory information
Definition
Thalamus
Term
Allows communication between the right and left sides of the brain
Definition
Corpus Collasum
Term
What three things act as protection to the brain, and spinal cord?
Definition
1.Meninges - the 3 layers of membrane.
2.Cerebrospinal Fluid - acts as a shock absorber for the brain.
3.Bones - such as the scull prevent injury to the brain and spinal cord.
Term
Name and give the function of the 3 neurons involved in a reflex.
Definition
1.Inter-neuron - transmits, and interprets information.
2.Sensory Neuron - Picks up sensory information.
3.Motor Neuron - Coordinates responses.
Term
What is the organ that the motor neuron travels to?
Definition
Effector Organ
Term
What is the thing that sets off the sensory neurons?
Definition
Stimulus
Term
The gap between neurons
Definition
Synapse
Term
Insulates the Axon
Definition
Myelin
Term
Carries impulses AWAY from the cell body
Definition
Axon
Term
Carries impulses TO the cell body
Definition
Dendrite
Term
The control center of the cell
Definition
Nucleus
Term
Contains the organelles
Definition
Cell Body
Term
The chemicals uses to cross the Synapse
Definition
Neurotransmitters
Term
What is meant by the "all or none" response?
Definition
Nerve cells can only tell if they have been activated, but can't tell by what.
Term
Define Threshold
Definition
The minimal amount of stimulus needed for a response.
Term
Name the 4 receptors in skin.
Definition
1.Pressure
2.Pain
3.Temperature
4.Light Touch(to feel texture)
Term
Name the 4 receptors in the tongue.
Definition
1.Sour
2.Sweet
3.Bitter
4.Salty
Term
Name the 2 receptors in the ear.
Definition
1.Sound
2.Balance
Term
Name the receptor in the nose.
Definition
1.Smell receptors
Term
Name and give the function of the 2 receptors in the eyes.
Definition
1. Cones - color vision
2. Rods - Light and dark vision.
Term
Give an example of a stimulant.
Definition
Nicotine, crack, cocaine, meth, caffine
Term
Name an example of a depressant.
Definition
Alcohol, tranquillisers, barbiturates
Term
Name an example of a narcotic.
Definition
Opium, codeine, morphine, heroine
Term
Name an example of a hallucinogen.
Definition
Shrooms, marijuana, LSD, PCP
Term
Name the effects of Stimulants on the body.
Definition
1. Speeds up the heart.
2. Increases activity.
3. Decreases appetite.
Term
Name the effects of depressants on the body.
Definition
1. Slows heart and breathing rate.
2. Decreases activity.
3. Inhibits reactions and reflexes
Term
Name the effects of narcotics on the body.
Definition
1. Pain killers.
2. Deadens nerves.
3. Replaces neurotransmitters.
Term
Name the effects of hallucinogens on the body.
Definition
1. Produces a feeling of euphoria.
2. Can sometimes cause illusions, or flashbacks.
Term
Name the 4 types of drugs we studied.
Definition
Stimulants, Depressants, Narcotics, and Hallucinogens.
Term
Disease that causes uncontrollable shaking, and causes the inability to start an action, due to the lack of a neurotransmitter in the brain.
Definition
Parkinson's disease
Term
Disease that causes an "electrical storm" in the brain, resulting in seizures.
Definition
Epilepsy
Term
Disease that causes there to be excess fluid around the brain.
Definition
Hydrosephally
Term
Genetic disorder that deteriorates the brain, and is fatal.
Definition
Huntington's disease
Term
Disease that causes the loss of brain material over time.
Definition
Alzheimers
Term
Congenital disease that makes you unable to have motor control.
Definition
Cerebral Palsy
Term
Disease that is essentially an heart attack in the brain.
Definition
Stroke
Term
Name and give the function of the two divisions of the Peripheral Nervous System.
Definition
1. Somatic - is under conscience control.
2. Autonomic - Automatic reaction.
Term
Name and give the function of the two divisions of autonomic reactions.
Definition
1. Sympathetic - Prepares the body for stress.
2. Parasympathetic - Relaxes the body.
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