Brain, blood supply, cranial meninges

Question 1

what are the 2 parts of the diencephalon?

Answer 1

thalmus

hypothalmus

Question 2

what is the telencephalon?

Answer 2

cerebral hemispheres

Question 3

what rootlets are in the reto-olivary sulcus?

Answer 3

glossopharyngeal and vagus

Question 4

what rootlets are in the pre-olivary sulcus?

Answer 4

hypoglossal nerve

Question 5

what feature is in the cerebral midbrain on each side?

Answer 5

cerebral crura

Question 6

what cranial nerve is in the cerebral midbrain?

Answer 6

oculomotor

Question 7

the floor of the 4th ventricle in the brain forms what?

Answer 7

rhomboid fossa

Question 8

the fourth ventricle is formed by what?

Answer 8

the upper part of medulla + pons & cerebellum

Question 9

what 4 structures are on the posterior surface of the midbrain?

Answer 9

2 superior colliculi

2 inferior colliculi

Question 10

what is the only CN that is attached to the posterior brainstem?

Answer 10

trochlear nerve

Question 11

what separates the right and left hemispheres of the brain?

Answer 11

longitudinal fissure

Question 12

what structure makes the longitudinal fissure incomplete?

Answer 12

corpus callosum

Question 13

what are the 5 lobes of each hemisphere?

Answer 13

frontal
parietal
temporal
occipital
insular

Question 14

what are the 2 main arteries that supply the brain?

Answer 14

vertebral artery

internal carotid artery

Question 15

what are the 4 divisions of the internal carotid artery?

Answer 15

cervical
petrous
cavernous
cerebral

Question 16

what are the branches of the internal thoracic artery that supply the brain?

Answer 16

middle cerebral
anterior cerebral
posterior communicating
opthalmic artery

Question 17

what is the layer of dura mater that faces the brain?

Answer 17

meningeal

Question 18

what is the layer of dura mater that lines the inner skull bones?

Answer 18

periosteal/ endosteal

Question 19

the falx cerebri is between what in the brain?

Answer 19

right and left cerebral hemispheres

Question 20

the falx cerebelli is between what in the brain?

Answer 20

right and left cerebellar hemispheres

Question 21

the tentorium cerebelli is between what in the brain?

Answer 21

cerebellum and occipital lobes

Question 22

the diaphragma sellae forms what in the brain?

Answer 22

roof of sella turcica

Question 23

where does the blood from the dural venous sinuses drain?

Answer 23

internal jugular vein

Question 24

what does the superior sinus begin and end in?

Answer 24

begins- foramen cecum

ends- confluence of the sinuses

Question 25

where does the inferior sagittal sinus end?

Answer 25

joins the great cerebral vein to form the straight sinus

Question 26

where does the straight sinus terminate

Answer 26

confluence of the sinuses

Question 27

where is the transverse sinus (what fold)?

Answer 27

along the posterior border of the tentorium cerebelli (starts at confluence of sinuses)

Question 28

what does the transverse sinus turn into at the temporal bone?

Answer 28

sigmoid sinus

Question 29

where does the sigmoid sinus terminate?

Answer 29

jugular foramen (in the internal jugular vein)

Question 30

where is the occipital foramen (what fold)

Answer 30

along the posterior border of the falx cerebelli (ends in confluence of sinuses)

Question 31

what structures are within the cavernous sinus?

Answer 31

``` internal carotid artery abducens nerve (CN6) ```

Question 32

what structures are within the lateral wall of the cavernous sinus?

Answer 32

``` CN 4 (trochlear) CN 5, [parts V1 and V2] trigeminal CN 3 (oculomotor) ```

Question 33

what drains the cavernous sinus?

Answer 33

the superior and inferior petrosal sinuses

Question 34

what does the superior petrosal sinus connect?

Answer 34

the cavernous sinus w/ the transverse sinus

Question 35

what does the inferior petrosal sinus connect?

Answer 35

the cavernous sinus w/ the internal jugular vein

Question 36

What are the 6 parts of the medulla?

Answer 36

``` Anterior median fissure Pyramids Olive Pre-Olivary sulcus Retro-Olivary sulcus ```

Question 37

What cranial nerve attaches to the anterior surface of the pons?

Answer 37

Trigeminal

Question 38

The two superior colliculi are part of wha system?

Answer 38

Visual

Question 39

The two inferior colliculi are part of what system?

Answer 39

Auditory

Question 40

What separates the parietal/frontal and temporal lobes?

Answer 40

Lateral sulcus

Question 41

What separates the frontal and parietal lobes?

Answer 41

Central sulcus

Question 42

What is the lobe of the brain that is deep to the lateral sulcus ?

Answer 42

Insular lobe

Question 43

Where does the vertebral artery enter the cranial cavity?

Answer 43

Foramen magnum

Question 44

Where do the vertebral arteries from the basilar artery?

Answer 44

Medullopontine sulcus

Question 45

What 2 branches does the internal carotid artery terminate into?

Answer 45

Anterior cerebral | Middle cerebral

Question 46

What are the 4 things on the lateral wall of the cavernous sinus?

Answer 46

Oculomotor Trochlear Ophthalmic n. (V1) Maxillary n. (V2)

Question 47

What are the two things inside the cavernous sinus?

Answer 47

Internal carotid artery | Abducent nerve

Question 48

Where does the sphenoparietal sinus drain into?

Answer 48

Cavernous sinus

Question 49

What is a primary brain parenchymal hemorrhage?

Answer 49

Rupture of small intraparenchymal vessels

Question 50

What is the hallmark clinical sign of a saccular aneurism?

Answer 50

Sudden excruciating headache

Question 51

What does a saccular aneurism cause if ruptured?

Answer 51

Subarachnoid hemorrhage

Question 52

What is an epidural hematoma?

Answer 52

Torn vessel in the dura, often middle Meningeal artery

Question 53

What is a subdural hematoma?

Answer 53

Tearing of bridging veins often from rapid movement

Question 54

Where do subdural hematoma so bleed into?

Answer 54

Subdural space