Limbic System

Question 1

limbic system anatomy

Answer 1

• just below cerebral cortex

- contains pathways connecting frontol lobes, temporal lobes, thalamus, hypothalamus

Question 2

cingulate gyrus

Answer 2

• aka limbic lobe

- connects different lobes of cerebrum

Question 3

hippocampus

Answer 3

• memory center (memory retrieval and storage)

- part of limbic system –> that’s why emotional memories are strongest

Question 4

amygdala

Answer 4

• part of limbic system

- involved in emotions of rage + anger

Question 5

fornix

Answer 5

• bundle of nerve fibers

- connects to hippocampus

Question 6

mamillary bodies

Answer 6

• contain fibers that project into thalamus

- responsible for memory of smell

Question 7

limbic system functions

Answer 7

• ” feeling brain”
• affects emotional aspects of behavior (including rewards/consequences)
• crucial for learning and memory (short + long term)
• communicates with all sensory areas to awaken complex memories

Question 8

basal ganglia

Answer 8

• masses of gray matter deep within hemispheres of cerebrum
• part of limbic system
• work w/ cerebellum to regulate planning motor movements/motor learning
• have inhibitory effect on cerebral cortex (slow/control precise movement)

Question 9

parts of basal ganglia (4)

Answer 9

1. putamen
2. caudate nucleus
3. globus pallidus (medial + lateral)

Question 10

parkinson’s

Answer 10

• disorder of basal ganglia

- causes apraxia

Question 11

apraxia

Answer 11

• difficulty with motor planning

- leads to rigid movements, difficulty executing motor plan