Nervous Tissue

Question 1

Characteristics of nervous tissue

Answer 1

Specialized for conducting electrical impulses.

Rapidly senses internal/external environments.

Processes info and controls responses.

Question 2

Characteristics of central nervous system

Answer 2

Carries out sensory, motor, integration of data.

Includes brain and spinal cord

Question 3

Characteristics of peripheral nervous system

Answer 3

Contains sensory receptors that process changes in internal/external environments.

Includes spinal and cranial nerves

Question 4

What are the two types of neural cells?

Answer 4

Neurons and neuroglia (glial cells)

Question 5

Neurons

Answer 5

Nerve cells that communicate with electrical impulses (action potentials)

Question 6

Neuroglia (glial cells)

Answer 6

Supporting cells that repair, protect, and supply nutrients to neurons

Question 7

What are the three parts of a neuron?

Answer 7

Cell body (soma), dendrites, axon

Question 8

Characteristics of the cell body (soma)

Answer 8

Contains the nucleus and nucleolus

Question 9

Characteristics of dendrites

Answer 9

Short branches extending from the cell body (soma).

Receives incoming signals

Question 10

Characteristics of the axon

Answer 10

Long, thin extensions of the cell body.

Carries outgoing electrical signals (action potentials)