Neurons

Question 1

Parts of the neuron cell?

Answer 1

Soma
Plasma Membrane
Axon
Myelin Sheath
Nucleus
Mitochondria
Dendrites
Axon Terminal
Terminal Buttons

Question 2

Soma

Answer 2

Body of Cell

Question 3

Axon

Answer 3

The long body of a neuron

Question 4

Plasma Membrane

Answer 4

Separating layer between non-cellular space

Question 5

Myelin Sheath

Answer 5

Insulating layer over axon which increases action potential firing time

Question 6

Nucleus and Mitochondria

Answer 6

Center (N) and powerhouse of the cell (M. Inside N)

Question 7

Dendrites

Answer 7

Receptors

Question 8

Terminal Buttons

Answer 8

Sends signals to other cells

Question 9

Ribosomes

Answer 9

Sites within a cell that synthesize new protein molecules

Question 10

What are the two kinds of neurons?

Answer 10

Sensory & Motor.

Question 11

Dendritic Spines

Answer 11

Short outgrowths that increase the surface area available for synapses

Question 12

Nodes of Ranvier

Answer 12

Unmyelinated parts of neurons which allow for the passage of ions in and out of the cell

Question 13

Multipolar Cells

Answer 13

Motor neuorns are multipolor. They have a single axon and many dendrites.

Question 14

Pseudounipolar Cells

Answer 14

Sensory neurons are psudounipolar. They have an axon and dendrites branching from the same cell extension. Sensory neurons interpret direct stimuli.

Question 15

Bipolar Sensory Neuron

Answer 15

Cell with one branch for axon and one for dendrites.

Question 16

Glia (or neuroglia)

Answer 16

Cells responsible for the other components of the nervous system, perform many functions.
EG:
Astrocytes
Radial Glia
Microglia

Question 17

Synapse

Answer 17

Synapse is the space between neurons

Question 18

Axon Terminal

Answer 18

The part of the presynaptic neuron that sends the signal from its terminal buttons

Question 19

Synaptic Vesicle

Answer 19

Carry neurotransmitters through terminal buttons to the postsynaptic neuron through its dendrite receptors