Limbic system

Question 1

what is the function of the hypothalamus in the limbic system?

Answer 1

governs and monitors internal homeostasis and basic needs such as hunger and thirst

Question 2

the locus ceruleus releases what NT?

Answer 2

NE

Question 3

the raphe nuclei releases what NT?

Answer 3

serotonin

Question 4

which areas of the limbic system release dopamine?

Answer 4

1. ventral tegmental area 2. nigrostriatal projection (SN - striatum)

Question 5

which areas of the limbic system release Ach?

Answer 5

1. nucleus basalis (hippocampus, neocortex) 2. septal nucleus (hippocampus)

Question 6

what are the major inputs to the amygdala?

Answer 6

1. sensory cortex 2. sensory thalamus 3. associative cortex 4. prefrontal cortex

Question 7

what are the major outputs of the amygdala?

Answer 7

1. hypothalamus 2. thalamus 3. basal ganglia

Question 8

what two structures respond to pain in others?

Answer 8

1. anterior cingulate cortex 2. insula

Question 9

what is the output of the nucleus accumbens?

Answer 9

ventral pallidum, then to thalamus, then to cortex

Question 10

what is the role of the ventral tegmental area? where does its output project?

Answer 10

1. provides NTs (dopamine) in reward circuit 2. nucleus accumbens

Question 11

what does cocaine do at the synaptic cleft?

Answer 11

binds dopamine transporter - dopamine loses its natural ability to present natural reward

Question 12

what is the role of the medial prefrontal cortex projection to the amygdala?

Answer 12

cortical regulation of fear response