lec 2: neuroscience

Question 1

define neuron.

Answer 1

cells specialised to receive and transmit info from and to other cells around the body.

bundle of neurons: nerves

Question 2

differentiate between sensory and motor neurons

Answer 2

sensory neurons are nerve cells carrying information from sensory receptors towards the central nervous system. afferent neurons.

motor neurons are nerve cells carrying information from the central nervous system towards the muscles and glands. efferent neurons.

Question 3

what are the 3 layers of the brain

Answer 3

brain stem, limbic system, cerebrum

Question 4

limbic system is responsible for motivated behaviours and regulation of emotions

what does the limbic system consist of?

Answer 4

1. thalamus - relays sensory info
2. hypothalamus (small part below thalamus) - regulates internal processes
3. amygdala (end of long tube) - emotion and memory processing
4. hippocampus (long tube) - memory

Question 5

brain ___ allows us to regain/rewire functions lost due to damage/trauma.

Answer 5

plasticity

Question 6

what are the 2 nervous systems?

Answer 6

1. central nervous system (brain and spinal cord)
2. peripheral nervous system (consists of ANS and SNS)

Question 7

automatic and somatic nervous systems are part of the ____ nervous system.

Answer 7

peripheral

Question 8

what is the ANS?

Answer 8

part of peripheral nervous system

automatic nervous system (ANS)

communicates with internal organs and glands

sympathetic (fight/flight) and parasympathetic (rest/digest)

Question 9

what is the SNS?

Answer 9

part of the peripheral nervous system

communicates with sense organs and muscles

somatic nervous system for sensory input (afferent) and motor nervous system (efferent) for motor output