Lab Exam 3: Nervous Tissue Flashcards
1
Q
2 major cell populations in nervous tissue
A
neuroglia and neurons
2
Q
Neuroglia
A
special supporting cells that protect, support, insulate more delicate neurons
3
Q
Neurons
A
highly specialized to receive stimuli and to generate electrical signals that may be sent to all parts of the body
- excitability and conductibility
4
Q
Structure of neurons
A
nucleus- containing cell body (soma) and cytoplasm is drawn out into long extensions
5
Q
description of nervous tissue
A
neurons are branching cells
- long cell processes extend from cell body
- there are also non-excitable supporting cells
6
Q
function of nervous tissue
A
neurons transmit electrical signals from sensory receptors and to effectors (muscles and glands); supporting cells support and protect neurons
7
Q
location of nervous tissue
A
brain, spinal cord, nerves
8
Q
cell membrane in nervous tissue
A
neurolemma
