Biology 30

Front 1

Central Nervous System

Back 1

Network of nerves that inclides the brain and spinal cord; integrates and precesses information sent by nerves.

Hint 1

Brain

Front 2

Peripheral Nervous System

Back 2

Network of nerves that carry sensory messages to the central nervous system (CNS) and send information from the CNS to the muscles and glands; consists of the autonomic and somatic system.

Hint 2

CNS

Front 3

Sensory Neuron

Back 3

Carry information into the CNS

Hint 3

What do they carry?

Front 4

Motor Neuron

Back 4

Carry information to the effectors.

Hint 4

What do they carry?

Front 5

Interneurons or Association Neurons

Back 5

Make connections in the CNS; only found in the CNS; are very short.

Hint 5

CNS

Front 6

Neurons

Back 6

The functional unit of the nervous system.

Front 7

Neuroglial Cells

Back 7

These cells are arranged into the nerve tissue and nerves throughout the body interconnect all parts of the body.

Front 8

Cell Body

Back 8

The part of the neuron that contains the cells organelles. Most cellular funtions occur here.

Hint 8

Part of the neuron

Front 9

Dendrites

Back 9

Gather information and send a nerve impulse towards the cell body.

Front 10

Axon

Back 10

Send a nerve impulse away from the cell body towards other neurons or effectors.

Front 11

Myelin Sheath

Back 11

Protects and insulates the axon.

Hint 11

Plastic coating on electric wire.

Front 12

Node of Ranvier

Back 12

Gap in the myelin sheath insulating the axon of a myrlinated nerve cell; the membrane of the axon is exposed and action potentials occur only at these nodes; nerve inpulses jump from one node of Ranvier to the next.