1.4 Parts of The Forebrain

Question 1

What is the forebrain?

Answer 1

-Newest part of the brain
-Dicephalon: thalamus,hypothalmus,pituatary gland, pineal gland
Telecephalon: Cerebral Cortex, basal ganglia, limbic system

Question 2

What is the Thalmus?

Answer 2

• Sensory or relay station

- organizes all of the sensory neuron information for the cerebral context

Question 3

What is the hypothalamus and what does it do?

Answer 3

• foods/fluid
• fight
• flight
• sexual reproduction

Question 4

Say that you are thirsty, how does the hypothalamus work then?

Answer 4

-Osmoreceptors get sent to your hypothalamus region where it can then make a signal for your body to drink

Question 5

Lateral Hypothalamus?

Answer 5

Large hunger

-Allows you to eat

Question 6

What if your lateral hypothalamus does not work?

Answer 6

-you will never feel hungry

Question 7

Ventral Medial hypothalamus?

Answer 7

• Very full

- Tell you to stop eating

Question 8

If the ventral medial doesn’t work?

Answer 8

-Obesity

Question 9

Anterior Hypothalamus?

Answer 9

• sex

- sleep regions

Question 10

Explain the Real world experiment with Cats and aggression?

Answer 10

• removed the cerebral cortex of the cat and kept the hypothalamus (sensitive Cat)
• Removed both (not so sensitive cat)

Question 11

Posterior Pituitary gland?

Answer 11

-This creates the hormones for the hypothalamus to release

Question 12

Pineal Gland?

Answer 12

• Sleep cycles
• coordinating retina with light
• releasing melatonin

Question 13

Basal Ganglia?

Answer 13

• Responsible for a smooth coordinating movements
• keeps your posture steady
• gets signals from the cortex

Question 14

How does the extrapyramedial system work with the basal ganglia?

Answer 14

-Sends the brain and spinal cord how the body is positioned

Question 15

What are basal ganglia diseases?

Answer 15

Parkinson’s disease

OCD

Question 16

What is the limbic system?

Answer 16

• emotion and memory
• hippocampus
• septal nuclie
• amygdala
• anterior cingulate cortex

Question 17

Septal Nuclei?

Answer 17

Addiction area of the brain

Question 18

Real World example of the Septal Nuclei? Rats.

Answer 18

Rats stimulated in that part when they pull a lever they loved it more than food

Question 19

Amygdala

Answer 19

AMY GOT A DOLLA

-fear and aggression parts of the brain

Question 20

What happens if you don’t have an amygdala?

Answer 20

fearless and docile

Question 21

Hippocampus?

Answer 21

Memory

• store longterm memories
• retrieve memories and sends to cortex if asked

Question 22

Two types of amnesia

Answer 22

Retro

anterior

Question 23

Retrograde?

Answer 23

-Remember the new but not the old

Question 24

Anterograde?

Answer 24

Remember the old but nothing new

Question 25

Anterior Cingulate Cortex

Answer 25

Think of colgate - motivation and emotion - impulse control/decision making - works frontal and partial lobes

Question 26

Cerebral Cortex?

Answer 26

- Neocortext - frontal - temporal - parietal - occipital

Question 27

What is Gyri?

Answer 27

bumps

Question 28

What is the Sulci?

Answer 28

Folds

Question 29

What does the frontal lobe split into?

Answer 29

- prefrontal cortext | - motor cortex

Question 30

What does the prefrontal cortex do?

Answer 30

- Big sister - bosses other parts of the brain around - Example: you have to remember something but doesn't tell you what exactly - organization - longterm planning - impulse control - emotion

Question 31

If the prefrontal is damaged?

Answer 31

- Immature individual - emotional - curses - uncontroleld movements

Question 32

What does the frontal motor cortex do?

Answer 32

- Controlling of movement | - fine motor movements from CNS processing

Question 33

What is the difference between an association area and a projection area?

Answer 33

Association area works with other groups | Projection area motor tasks

Question 34

Brocas Area?

Answer 34

speech formation | found in the dominant hemisphere

Question 35

Parietal Lobe?

Answer 35

- Somatosensory cortex | - spatial reasoning

Question 36

What does the somatosensory cortex do?

Answer 36

Pressure,pain,temperture stimulus

Question 37

Occipital lobe?

Answer 37

Works with sight and processing vision cues

Question 38

Temporal lobe?

Answer 38

processing sound | and understanding language

Question 39

What part of the brain is the temporal lobe close to?

Answer 39

hippocampus

Question 40

what is the wernicke's area?

Answer 40

Understanding speech area

Question 41

What is contra laterally?

Answer 41

One side of the brain processes and then controls the opposite side of the body Example: Movement

Question 42

What is ipsilaterally?

Answer 42

-One side of the brain which deals with the same side of the body Example: Sound

Question 43

What is the dominant side of your brain responsible for?

Answer 43

-Understanding language and processing information

Question 44

Non-dominante side?

Answer 44

-creative side, emotional side, spatial reasoning

Question 45

Do hand dominance tell you your dominant part of the brain?

Answer 45

NO! | Study showed that you can use the left side of your brain and still be left handed