Neuropsychology

Question 1

What is the CNS composed of?

Answer 1

Composed of the brain and spinal chord

Question 2

What does the CNS do?

Answer 2

Transmits and recieves messages to and from the Peripheral Nervous System (PNS)

Question 3

What is the PNS divided into?

Answer 3

Divided into the Somatic Nervous System and the Autonomic Nervous System

Question 4

What does the PNS do?

Answer 4

Carries messages to and from the CNS

Question 5

What does the spinal chord do?

Answer 5

Connects brain and Peripheral Nervous System

Question 6

What does the Autonomic Nervous System do?

Answer 6

Carries messages from the CNS to internal muscles, organs, and glands, providing feedback

Question 7

What is the Autonomic nervous system brances?

Answer 7

1. Sympathetic nervous system - arousing the body in reponse to a threat
2. Parasympathetic nervous system - the maintenence of processes that conserve and protect our bodily functions (saliva, digestion)

Question 8

What does the Somatic Nervous System do?

Answer 8

Carries messages between the CNS and the body, has a sensory and motor function

Question 9

What is a neuron composed of?

Answer 9

Nucleus, soma (cell body), dendrite, axon, myelin shealth, axon terminals

Question 10

What types of brain and spinal chord matter do neurons make up? (2 answers)

Answer 10

Grey matter - where interactions between neurons happen
White matter - specialises in communication between the brain, spinal chord, and rest of body

Question 11

What are the four types of neurons?

Answer 11

Motor neuron, inter neuron, sensory neuron, principal neuron

Question 12

What does a motor neuron do?

Answer 12

Controls activity of skeletal muscles smooths muscles and glands

Question 13

What does a inter neuron do?

Answer 13

Provide connections between other neurons in the brain and spinal chord, connects sensory and motor neurons

Question 14

What does a sensory neuron do?

Answer 14

Responsible for carrying sensory information from organs to the brain/spinal chord

Question 15

What does a principal neuron do?

Answer 15

Are found in the brain. They send axons to other regions of the brain

Question 16

How is information conveyed in a neuron?

Answer 16

Through the cell body and down to the axon in the form of an electrical signal. Can only go one way

Question 17

What is the prosess for a nerve impulse?

Answer 17

Begins at dendrite, travels through cell body, travels through the axon, reaches axon terminal, releases neurotransmitters that travel acriss the synapse (gap) between the axon terminal and dendrite of neighbouring neuron

Question 18

What is a nerual impulse?

Answer 18

The electrochemical transmission of information from one neuron to another

Question 19

What is the process of neural impulse?

Answer 19

Dendrite to Soma to Axon to Terminal buttons to Synapse

Question 20

What is an action potential?

Answer 20

A breif shift in the neuron’s electrical charge that travels along an axon from soma to terminal buttons

Question 21

What is a neuron threshold?

Answer 21

The point between whether the cell has enough energy to “fire” the neural impulse

Question 22

What is a neurotransmitter?

Answer 22

Chemical messengers that transmit messages from one neuron to another