Lecture 2 - PNS, CNS + Neurons

Question 1

Define neuroanatomy

Answer 1

Structure and connectivity of the nervous system

Question 2

What is neurophysiology?

Answer 2

How neurons work and communicate

Question 3

What are the two parts of the CNS and what do they do?

Answer 3

Brain: receives and processes information, initiates responses, stores memories
Spinal cord: conducts signals to and from the brain, controls reflex activities.

Question 4

What are the two parts of the PNS and what do they do?

Answer 4

Autonomic Nervous system (ANS): controls involuntary responses
Somatic Nervous System (SNS): controls voluntary movements.

Question 5

What is the ANS made up of?

Answer 5

Sympathetic nervous system - fight or flight
Parasympathetic nervous system - rest and digest

Question 6

Outline role of the Somatic nervous system

Answer 6

Consists of nerves responsible for:
- Transmitting signals from the CNS to the body for voluntary movement.
- Delivering sensory information from the body to the CNS.

Question 7

Outline the role of the autonomic nervous system

Answer 7

Consists of nerves responsible for
- Regulating the automatic behaviours of the body (e.g. heart rate, blood pressure, respiration, digestion.)

Question 8

What are the 3 parts of the brain?

Answer 8

Forebrain
Midbrain
Hindbrain

Question 9

What is the forebrain made up of?

Answer 9

Limbic system
Thalamus
Basal Ganglia
Hypothalamus

Question 10

What is the role of the hindbrain in the medulla?

Answer 10

Responsible for regulating:
- heart rate
- circulation
- respiration
- sleep/wakefulness
- level of arousal/consciousness