Lecture 12 - Basic Anatomy And Relationships

Front 1

Basic vital functions of the brainstem:

Back 1

1) Respiration
2) Heart Rate

Front 2

CSF Collects mostly in the....

Back 2

Lateral ventricle but can also accumulate in the 3rd and 4th ventricle.

By the choroid plexus

Front 3

Whats the relationship between the midbrain and ventricular structures?

Back 3

1) Cerebral aqueduct in the mid brain
2) Fourth ventricle is BETWEEEN the (pons/medulla) and cerebellum.

Front 4

The flow of CSF starting from the lateral ventricle

Back 4

lateral ventricle > 3rd ventricle > cerebral aqueduct > 4th ventricle > subarachnoid space (through three foramina in the 4th ventricle.

Front 5

What is the quadrigeminal plate made of?

Back 5

Superior and inferior colliculi (corpora quadrigemina)

Front 6

Superior colliculus is related to what pathway?

Back 6

Visual pathway

Front 7

Superior colliculus has what functions?

Back 7

Coordinates reflexes

Visual stimuli

control of eye movements

Front 8

inferior colliculus is related to what pathway?

Back 8

Auditory pathway (from cochlea to cerebral cortex)

Coordinates to auditory reflexes

Front 9

Tegmentum contains what?

Back 9

Periaquductal gray

Cranial nerve nuclei for CNIII and IV

Red nucleus

Front 10

T/F tegmentum is a major pathway between the brain and the brainstem or spinal cord

Back 10

True

Front 11

What does the basilar area contain?

Back 11

Crus cerebri

Front 12

Crus cerebri is....

Back 12

Bundle of descending tracks that originated in the cerebrum.

Descending tract

Front 13

What separates the crus cerebri from the midbrain tegmentum?

Back 13

Substantia nigra

Front 14

What is the only communication between the 3rd and 4th ventricle?

Back 14

Cerebral aqueduct

Front 15

Cranial nerves of the mid brain are

Back 15

III and IV

Front 16

CN III comes from where?

Back 16

Interpeduncular fossa

Front 17

CN IV comes from where?

Back 17

Dorsally just below the inferior colliculus

Front 18

What does the Pons derive from?

Back 18

Rhombencephalon

Front 19

Pontine Tegmentum characteristics

Back 19

1) Floor of the 4th ventricle
2) Contains nuclei for CN V
3) Partly responsible for consciousness

Front 20

Basilar Pons contains

Back 20

Cortically derived axons
1) corticobulbar
2) corticospinal
3) Corticopontine

Front 21

CN of the PONS

Back 21

V VI VII VIII

Front 22

CN VI VII VII emerge from where?

Back 22

The pontomedullary junction (inferior pontine sulcus)

Front 23

Medulla oblongata is derived from what

Back 23

Rhombocephalon

Front 24

What does the medulla oblongata control?

Back 24

Autonomically:

1) respiration
2) heart rate
3) blood pressure
4) reticular formation connectd with the spinal cord

Front 25

What are the borders of the upper medulla dorsal

Back 25

On top, striae medullares

On bottom, obex

Front 26

What are the borders of the medulla on the ventral side

Back 26

Inferior pontine sulcus

Pyramidal decussation

Front 27

Olive is a group of efferents that send to

Back 27

Cerebellum

Front 28

Gracile tubercle receives from....

Back 28

Leg regions T6 and down via fasiculus gracile

Front 29

Cuneate tubercle receives from

Back 29

Arm regions T6 and up via fasiculuas cuneatus

Front 30

Medulla contains the CN for

Back 30

IX X XI and XII and some 8.

Front 31

Accessory emerges from

Back 31

Partly the post olivary sulcus

Front 32

IX and X emerge from

Back 32

Postolivary sulcus

Front 33

XII emerges from

Back 33

Preolivary sulcus