Module 2 - Parts of the Brain Flashcards Preview

BIOL1040 > Module 2 - Parts of the Brain > Flashcards

Flashcards in Module 2 - Parts of the Brain Deck (15):
1

Roles of brain stem

- basic functions
- homeostasis and movement
- directs and transfers information to the rest of the brain
- reticular formation is the selectivity filter that determines arousal and sleep
- includes mid brain, pons and medulla oblongata

2

Location and roles of cerebellum

- Base of brain (at the base behind brain stem)
- coordination
- motor function
- cognitive and perceptual functions

3

Where is the diencephalon located and what are its three parts?

Mid brain above brain stem

- Epithalamas
- Thalamus
- Hypothalamus

4

Where is the cerebrum and what are its lobes?

Dominating part of the brain (all of the top)

Lobes:
- frontal
- parietal
- temporal
- occipital

5

Broca's area vs Wernicke's area

Broca's area is in the frontal lobe and is active during speech generation

Wernicke's area is in the temporal lobe and is active when speech is heard

6

Parts of the limbic system

Olfactory bulb
Hypothalamus
Thalamas
Hippocampus for memory
Amygdala - initiates fear

7

Process of memory and learning

Short term - hippocampus is constantly active
Long term - cerebral cortex
Recall - short term memory activated again

8

What is the fundamental process for storing memories and learning?

The high frequency transmission of glutamate results in increased size of postsynaptic potentials at synapses which can last for days or weeks.

9

What is the position and roles of the frontal lobe?

front

- motor cortex controls skeletal muscles
- prefrontal cortex controls decisions making and planning
- Broca's area forms speech

10

What is the position and roles of the parietal lobe?

Top back

- somatosensory cortex for sense of touch
- sensory association cortex integrates sensory information

11

What is the position and roles of the temporal lobe?

Centre/bottom

- auditory cortex for hearing
- Wernicke's area comprehends language

12

What is the position and roles of the occipital lobe?

back bottom

- visual cortex processes visual stimuli and recognises patterns
- visual association cortex combines images and recognises objects

13

Where is the epithalamas located in the diencephalon and what are its roles?

Back

- connects limbic system (the emotional centre) to the rest of the brain
- the pineal gland controls melatonin release for sleep

14

Where is the thalamus located in the diencephalon and what are its roles?

Middle

- input from sensory neurons
- output via motor neurons

15

Where is the hypothalamus located in the diencephalon and what are its roles?

Front

- homeostatic regulation - hormones
- biological clock
- temperature regulation
- survival - hunger, thirst