Central Nervous System

Question 1

what is the role of the spinal cord in the CNS?

Answer 1

responsible for reflex actions such as pulling your hand away from a hot plate. It passes messages to and from the brain, linking it to the peripheral system.

Question 2

what is the role of the brain in the CNS?

Answer 2

source of our consciousness awareness and where decision- making takes place

Question 3

what is the corpus callous?

Answer 3

distinguishes our mental functioning from that of other animals.
it is about 3mm thick, and covers the inner parts of the brain

Question 4

what are subcortical structures involved in?

Answer 4

complex activities like memory, emotion, pleasure and hormone production

Question 5

what is the function of the striatum?

Answer 5

important role in controlling movements and in motivation

Question 6

what is the function of the hippocampus (part of limbic system)?

Answer 6

short term memories are passed into long term memories via the hippocampus

Question 7

what is the function of the ventricles?

Answer 7

produce cerebrospinal fluid to cushion brain and provide nutrients

Question 8

what is the function of the amygdala (part of the limbic system)?

Answer 8

emotions and aggression; left amygdala may link to a reward system and both positive and negative emotions, whereas the right might be concerned for fear and sadness

Question 9

what is the function of the hypothalamus (part of the limbic system)?

Answer 9

regulating eating and drinking motivated behaviours

Question 10

what is the function of the medial temporal lobe?

Answer 10

includes the hippocampus and has a large role in memory

Question 11

what is the function of the cerebellum?

Answer 11

stores memory
learning of practical skills

Question 12

what is the function of the corpus callosum?

Answer 12

the bridge between the two hemispheres of the brain and transmits messages between the two halves

Question 13

what is the function of the limbic system?

Answer 13

concerned with the emotions and memories, includes the hypothalamus, hippocampus and amygdala

Question 14

what is the function of neurones?

Answer 14

receive and transmit messages in the brain in response to the information received from the rest of the body.
information travels along neurones as electrical signals- nerve impulses.
these signals are passed to the next neurone in the chain at the sites known as synapses.

Question 15

what are sensory neurones?

Answer 15

carry messages from the sensory receptors (touch and temperature sensitive receptors in skin) along nerves