CH 3 Neurology (TERMS)

Question 1

Neurons

Answer 1

specialized cells that send, process and receive information

Question 2

Dendrites (1,2)

Answer 2

• Part of Neuron

Collects information from other neurons

• Either sends excitatory or inhibitory messages

Question 3

Excitatory

Answer 3

Promote the generation of an action potential in the receiving neuron

Question 4

Inhibitory

Answer 4

Prevent the generation of an action potential in the receiving neuron

Question 5

Axon (1,1)

Answer 5

• Part of Neuron

Carries messages away from cell body towards next neuron

Question 6

Terminal buttons (1,1)

Answer 6

• Part of Neuron

Secrete neurotransmitters to next neuron

Question 7

Axon hillock (1,2)

Answer 7

• Part of Neuron

Important as it regulates the firing of the neuron in an all-or-none manner

• Only fires action potential if the critical threshold is breached

Question 8

Myelin Sheath (1, 4)

Answer 8

• Part of Neuron

Insulates axons

• Prevents cross-talk: charged action potential jumping from one neuron to the other
• Speeds transmission
• Fatty coating covering most neurons

Question 9

Synaptic Transmission

Answer 9

The process in which a chemical signal is released from one neuron and diffuses to other neurons or target cells, generating a signal that excites, inhibits, or modulates cellular activity

Question 10

Synapse

Answer 10

Gap between neurons that allow them to communicate with one another