Biopsychology

Question 1

What is the nervous system?

Answer 1

• A specialised network of cells in the human body
• Is our primary internal communication system

Question 2

What is the difference in the nervous system and endocrine systems mode of transport?

Answer 2

endocrine system is electrical messages along neurones
nervous system is chemical messengers (hormones) in the bloodstream

Question 3

compare the nervous system and endocrine systems release

Answer 3

endocrine system travels to all parts of the body
nervous system only affects various glands

Question 4

compare the speed of travel in the endocrine and nervous system

Answer 4

endocrine system is immediate (0.25 secs)
nervous system 2-3 secs

Question 5

compare the duration of the endocrine and nervous system

Answer 5

endocrine system effect’s are short term
nervous system’s effects are long term and wide spread

Question 6

Cell Body (Soma)

Answer 6

Includes a nucleus.

Question 7

Nucleus

Answer 7

Contains the genetic structure of a cell.

Question 8

Dendrites

Answer 8

Branches stemming from cell body. They carry nerve impulses from neighbouring neurons towards the cell body.

Question 9

Axon

Answer 9

Covered in fatty layer called myelin, carries impulses away from the cell body along the length of the neuron.

Question 10

Myelin Sheath

Answer 10

Fatty layer that protects axon and speeds up electrical transmission of impulse.

Question 11

Nodes of Randier

Answer 11

Gaps in the myelin sheath that force the impulse to ‘jump’ across which increases the speed of transmission.

Question 12

Terminal Buttons

Answer 12

These are found at the end of the axon and communicate with the next neuron across a synapse.

Question 13

Schwann Cells

Answer 13

Involved in the formation of the myelin sheath.

Question 14

What is the direction if impulse in a nerve?

Answer 14

Towards the dendrites, away from the axon.

Question 15

What are the two parts of the body that make up the CNS?

Answer 15

The brain and the spinal cord

Question 16

What are the two different parts of the PNS?

Answer 16

Somatic and autonomic (used in fight or flight response)

Question 17

What are the two different parts of the autonomic nervous system?

Answer 17

Sympathetic and parasympathetic

Question 18

Features of the frontal lobe

Answer 18

• Largest region
• Cognitive work (thinking, problem solving, decisions)

Question 19

Temporal lobe purpose

Answer 19

Speech and language

Question 20

Occipital lobe purpose

Answer 20

Visual Processing

Question 21

Parietal lobe purpose

Answer 21

Important for sensory information