Nervous System Terms Pt. 1

Question 1

nerve cell fibers that conduct signals to the cell body of neuron

Answer 1

Dendrite

Question 2

junction between an axon of one cell and dendrite of another across which impulses travel

Answer 2

Synapse

Question 3

increases the speed of conduction along the axon

Answer 3

Myelin Sheath

Question 4

strength of a stimulus needed to induce an action potential

Answer 4

Threshold of Excitation

Question 5

controls how long a chemical signal lasts

Answer 5

Reuptake

Question 6

recycling of neurotransmitters

Answer 6

Reuptake

Question 7

sensory, motor & interneurons

Answer 7

Types of Neurons

Question 8

occurs in myelinated axons, faster transmission of neural impulses

Answer 8

Saltatory Conduction

Question 9

occurs in unmyelinated axons, slower transmission of neural impulses

Answer 9

Continuous Conduction

Question 10

the inside of the neuron becomes more positive relative to the outside

Answer 10

Depolarization

Question 11

the result of positively charged sodium ions rushing into the neuron

Answer 11

Depolarization

Question 12

the inside of the neuron becomes more negative relative to the outside

Answer 12

Repolarization

Question 13

the result of positively charged potassium ions rushing out of the neuron

Answer 13

Repolarization