Diencephalon

Question 1

What structure connects the Thalamus and Hypothalamus?

Answer 1

Massa Intermedia

Question 2

2 structures located in the Diencephalon

Answer 2

1. hypothalamus

2. thalamus

Question 3

Function of the hypothalamus?

Answer 3

regulate body functions

Question 4

Function of the mammillary bodies?

Answer 4

help with body regulations

Question 5

Location of the mammillary bodies?

Answer 5

anterior portion of the hypothalamus

Question 6

Function of the fornix?

Answer 6

C structure that works with the cingulate gyrus to feed into the PHCG
- communicate with limbic systen

Question 7

In what structure is the fornix located?

Answer 7

hypothalamus

Question 8

Where are the mammillary bodies located?

Answer 8

hypothalamus

Question 9

What area of the brain is the Subthalamus associated with?

Answer 9

Basal Ganglia

Question 10

Where is the Thalamus located?

Answer 10

Rostral to the Midbrain

Question 11

Function of the Thalamus?

Answer 11

Sensory processing center

All information is sent to the thalamus to help filter and then send to the appropriate association area

Question 12

Which direction do projection fibers usually move?

Answer 12

vertical

Question 13

Which way does the internal capsule project? From where to where?

Answer 13

Ascending and Descending

thalamus–>Cortex–>Sub Cortical Areas (such as PMC, PSC, etc.)

Question 14

Function of the Basal Ganglia?

Answer 14

To regulate movement and the quality

collect sensory info and send to thalamus

Question 15

What side of the body does the basal ganglia process information about?

Answer 15

Ipsilateral

Question 16

How do Commissure Fibers differ from Projection Fibers (2)?

Answer 16

1. They are shorter

2. They tend to run laterally

Question 17

T/F Commissure Fibers are located in the spinal cord?

Answer 17

True, this is how the right and left aspects of the spinal cord communicate with one another

Question 18

Function of Commissure Fibers?

Answer 18

Help hemispheres/sides communicate with one another

Question 19

In what direction do Association Fibers move?

Answer 19

They move in whatever direction they need to

Question 20

Function of Association Fibers?

Answer 20

Communicate with neighboring gyri, nuclei, and lobes

Question 21

Internal Medullary Lamina?

Answer 21

Myelinated axons that go INTO the thalamus and then feed into the anterior, medial, and lateral

Question 22

Function of the Colliculi?

Answer 22

relay nuclei; serve as a pit stop for “directions” on where to go

Question 23

LTN: Tactile (receptors on the skin)

Answer 23

Ventroposteriolateral (VPL) to Parietal Lobe

Question 24

Tactile/VPL functions?

Answer 24

Sensory information regarding the whole body

Question 25

LTN: Trigeminal nucleus of CN VII

Answer 25

Ventroposteriomedial (VPM) to Parietal Lobe

Question 26

Trigeminal nucleus of the CN VII/VPM functions?

Answer 26

Sensory information regarding the face and neck

Question 27

LTN: Pain receptors (nociceptors)

Answer 27

Ventral posterior (VP) to Parietal Lobe

Question 28

Pain receptors/VP functions?

Answer 28

processing pain sensory information regarding the whole body

Question 29

LTN: Basal Ganglia (frontal lobe)

Answer 29

Ventral Anterior (VA) to Frontal Lobe

Question 30

Basal Ganglia/VA function

Answer 30

Planning and production of movement

Question 31

LTN: Basal Ganglia (Cerebellum)

Answer 31

Ventral Lateral (VL) to Frontal Lobe

Question 32

Basal Ganglia (cerebellum)/VL function

Answer 32

planning and production of motor movements; premotor and association/supplemental areas

Question 33

LTN: Superior Colliculi (dorsal)

Answer 33

Lateral Dorsal (LD) to CG and Lateral Occipital Gyrus

Question 34

Superior Colliculi/LD function

Answer 34

processing visual simuli

Question 35

LTN: Superior Colliculi (posterior)

Answer 35

Lateral Posterior (LP) to Parietal, Occipital, and Temporal Lobes

Question 36

Superior Colliculi/LP function

Answer 36

visual processing

Question 37

LTN: Medial Occipital Lobe

Answer 37

Pulvinar (P) to Parietal, Occipital, and Temporal Lobes

Question 38

Medial Occipital Lobe/Pulvinar function

Answer 38

Gather information about somatosensory, vision, and auditory and then send to frontal lobe for action

Question 39

LTN: Optic Tract

Answer 39

Lateral Geniculate Body (LGB) to Medial Occipital Lobe

Question 40

Optic Tract/LGB function

Answer 40

primary visual processing

Question 41

LTN: Inferior Colliculi

Answer 41

Medial Geniculate Body (MGB) to Lateral Temporal Lobe

Question 42

Inferior Colliculi/MGB function

Answer 42

auditory processing of both the CON and IPS

Question 43

Function of Anterior Thalamic Nuclei

Answer 43

"Match maker"; sensory responses/feedback related to memory and emotion (specific to body regulation such as HR)

Question 44

3 paths of the Anterior Thalamic Nuclei

Answer 44

1. Mammillary Bodies to the Thalamus 2. Anterior Nuclei of TH through the CG to the Hippocampus 3. Hippocampus to Mammillary Bodies * *Makes a loop

Question 45

Function of the Medial Thalamic Nuclei?

Answer 45

Executive response and decision making

Question 46

Where does the MTN receive information from? Then where does it go?

Answer 46

amygdala, olfactory bulb, and hypothalamus | --> Thalamus --> prefrontal cortex

Question 47

Where do Reticular Nuclei project to?

Answer 47

all areas of the cortex

Question 48

Function of the Reticular Nuclei

Answer 48

"prepping" cells | take in general senses and send to other areas

Question 49

Function of the Pituitary Gland

Answer 49

Hormonal control and regulation

Question 50

Hypothalamus is the primary connection to which 3 structures?

Answer 50

1. Limbic System 2. Pituitary Gland 3. Somatic (body)