Science quiz Flashcards
1
Q
Nervous System
A
Receives information from the environment and coordinates a response.
2
Q
Stimulus
A
A signal that causes an animal to react in some way
3
Q
Response
A
An animal’s reaction to a stimulus
4
Q
Neuron
A
A nerve cell with a unique structure for receiving and passing on information.
5
Q
Impulse
A
Information that travels as an electrical message
6
Q
Sensory Neuron
A
Nerve cells that detect stimuli
7
Q
Interneuron
A
Nerve cells that pass information between neurons
8
Q
Motor Neuron
A
Nerve cells that carry response information to muscles and other organs
9
Q
Brain
A
An organized grouping of neurons in the head of an animal with bilateral symmetry
10
Q
Water Vascular System
A
A system of fluid-filled tubes
11
Q
Swim Bladder
A
An internal, gas-filled sac
