Brain and Cranial Nerves

Question 1

Choroid Plexus

Answer 1

Ependymal cells take plasma from capillaries and convert it into CSF

Question 2

Cerebellar Peduncles

Answer 2

• Holds up cerebellum
• Superior, middle, and inferior

Question 3

Brain Surface Structures

Answer 3

Question 4

Cranial Nerves

Answer 4

On - Olfactory (I)

Old - Optic (II)

Olympus - Oculomotor (III)

Towering - Trochlear (IV)

Tops - Trigeminal (V)

A - Abducens (VI)

Finely - Facial (VII)

Vested - Vestibulocochlear (VIII)

German - Glossopharangeal (IX)

Viewed - Vagus (X)

A - Accessory (XI)

Hawk - Hypoglossal (XII)

Question 5

3rd Ventricle

Answer 5

Has a hole within that accomodates interthalamic adhesion

Question 6

Hindbrain Structures 1

Answer 6

Question 7

Interthalamic Adhesion

Answer 7

Connects two lobes of thalamus; appears lighter

Question 8

Midbrain

Answer 8

• Corpora Quadrigemina
  
  • Superior Colliculi
  • Inferior Colliculi
• Cerebral Peduncles

Question 9

Hindbrain

Answer 9

• Pons
• Medulla Oblongata
• Cerebellum
• Cerebellar Peduncles
• Medullary Pyramids
• Olives
• Cerebellar Cortex
• Arbor Vitae
• Folia

Question 10

4th Ventricle

Answer 10

• Contains 2 lateral and 1 median aperture (opening)
• CSF exits into subarachnoid space

Question 11

Cerebral Aqueduct

Answer 11

Diameter of pencil lead

Question 12

Mammillary Bodies

Answer 12

2 mounds by hypothalamus

Question 13

Arbor Vitae

Answer 13

White nerve tract (myelinated axons) inside cerebellum

Question 14

Hindbrain Structures 3

Answer 14

Question 15

Arachnoid Granulations

Answer 15

CSF exits out of these into superior sagittal sinus

Question 16

Cranial Nerves 1

Answer 16

Question 17

Infundibulum

Answer 17

Connects hypothalamus to Pituitary Gland (“master gland”)

Question 18

Cerebellar Cortex

Answer 18

Gray matter surrounding branches of arbor vitae

Question 19

Cranial Nerves 2

Answer 19

Question 20

Cranial Nerves Functions

Answer 20

Some

Say

Marry

Money

But

My

Brother

Says

Big

Brains

Matter

Most

Question 21

Olives

Answer 21

Behind pyramids, on medulla

Question 22

Answer 22

Question 23

Pons

Answer 23

Superior to Medulla

Question 24

Cerebellum

Answer 24

Left and right halves separated by cerebellar vermis

Question 25

Diencephalon

Answer 25

• Thalamus
• Hypothalamus
• Epithalamus
• Subthalamus

Question 26

CSF Flow Steps

Answer 26

1. Choroid Plexus
2. Lateral Ventricles
3. 3rd Ventricle
4. Cerebral Aqueduct
5. 4th Ventricle
6. Subarachnoid Space
7. Central Canal
8. Arachnoid Granulations
9. Superior Sagittal Sinus

Question 27

Midbrain Structures

Answer 27

Question 28

Superior Sagittal Sinus

Answer 28

Where CSF exits into and joins up with used blood and goes back into circulation

Question 29

Pituitary Gland

Answer 29

• Anterior is darker, posterior is lighter
• Held by Sella Turcica

Question 30

Pineal Gland

Answer 30

In epithalamus; releases melatonin

Question 31

Answer 31

Question 32

Lateral Ventricles

Answer 32

• Have interventricular foramen (little holes that allow CSF to enter 3rd ventricle)
• Separated by Septum Pellucidum

Question 33

Hindbrain Structures 2

Answer 33

Question 34

Medullary Pyramids

Answer 34

• Decussation of Pyramids
  
  • Crossover occurs here

Question 35

Corpus Callosum

Answer 35

• Wide nerve track that connects hemispheres of brain
• Thicker in women than in men

Question 36

Folia

Answer 36

Looks like leaves on arbor vitae (consequence of gyri)

Question 37

Septum Pellucidum

Answer 37

• Translates to “Transparent Wall”
• Separates Lateral Ventricles
• Directly underneath Corpus Callosum

Question 38

Optic Chiasm

Answer 38

• Crossover between eyes and hemispheres
• Towards front of hypothalamus
• Optic nerves come in here

Question 39

Answer 39

Question 40

Forebrain

Answer 40

• Cerebrum
• Infundibulum
• Mammillary Bodies
• Optic Chiasm
• Diencephalon
• Septum Pellucidum
• Corpus Callosum
• Pineal Gland
• Interthalamic Adhesion