Interbrain

Question 1

The interbrain is situated between _____ and ________

Answer 1

Cerebrum
and
Brainstem

Question 2

What two structures does the interbrain it connect?

Answer 2

Cortex
and
Brainstem

Question 3

What kind of white fiber tracts and gray nuclei does the interbrain contain?

Answer 3

The interbrain contains ascending and descending white fiber tracts and gray matter nuclei

Question 4

What do the ascending and descending white fiber tracts and gray matter nuclei regulate?

Answer 4

They regulate

• internal homeostasis
• memory processing
• emotional response

Question 5

The interbrain connects the _______ system and the ________ system

Answer 5

Endocrine system
and
Nervous system

Question 6

The interbrain relays ______ information between _______

Answer 6

Sensory information

Brain regions

Question 7

The interbrain controls many what?

Answer 7

Controls many peripheral nervous system functions

Motor function control for instance

Question 8

Parts of interbrain are

Answer 8

1. Epithalamus
2. Thalamus
3. Subthalamus
4. Metathalamus
5. Hypothalamus

Question 9

what is the most dorsal part of diencephalon?

Answer 9

Epithalamus

Question 10

What part does the epithalamus form?

Answer 10

It forms the roof of third ventricle

Question 11

The epithalamus has an unpaired___ what?

Answer 11

Pineal gland (glandula pinealis, epiphysis)

Question 12

what does the pineal gland do?

Answer 12

It is an endocrine gland which produces melatonin

Question 13

where is the pineal gland partially?

Answer 13

in CSF

Question 14

Epithalamus has a —-?

Answer 14

It has a habenula. Habenula has a white matter stalk. The habenula anchors pineal gland to thalamus. The habenula is involved pain processing, reproductive behavior, sleep-wake cycle, stress response)

Question 15

Thalamus is between ______ and ______

Answer 15

Cerebral cortex
and
midbrain

Question 16

What part does the thalamus form?

Answer 16

Part of lateral wall of the third ventricle

Question 17

The thalamus is a gateway to _____

Answer 17

Gateway to cerebral cortex. Every sensory system (except olfactory) has a thalamic nucleus that receives signals and sends them to associated cortical area

Question 18

What does the thalamus regulate?

Answer 18

Sleep-wake cycle and consciousness

Question 19

Left and right side of thalamus make contact at midline forming band…

Answer 19

Adhesio interthalmica

Question 20

What is the subthalamus? What two things is it composed of ? What does it pass through and what structure does it head towards?

Answer 20

Complex region of nuclear groups and fiber tracts passing through brain stem and heading towards thalamus

Question 21

Metathalamus lies under cover of _____

Answer 21

Thalamus

Question 22

What does the metathalamus consist of?

Answer 22

Two oval shaped geniculate bodies

Corpus geniculatum mediales (part of auditory pathway)
Corpus geniculatum laterale (part of optic tract)

Question 23

Hypothalamus is on what surface?

Answer 23

Ventral surface

Question 24

Hypothalamus is the link between _____ and _______ ________

Hypothalamus is also the functional link between _______ and _______ systems

Answer 24

Emotions
and
Physical reactions

Nervous and endocrine systems

Question 25

Which part is the main visceral control centre?

Answer 25

the hypothalamus

Question 26

Hypothalamus secretes what?

Produces _______ and _______, releases them by?

Answer 26

Neurohormones like GH, FSH, ACTH

Antidiuretic hormone and oxytosin, releases them by neurohypophysis

Question 27

Hypothalamus is important to:

Answer 27

Homeostasis: heart rate, blood pressure

Question 28

Parts of hypothalamus are:

Answer 28

• Mamillary body (round white elevation)
• Optic tract and chiasm (crossing fibers)
• Grey tuber (= tuber cinereum)
• Hypophysis, pituitary gland