IntroToCNS

Question 1

What are the meninges?

Answer 1

Protective CNS covering

Question 2

What does the CSF do?

Answer 2

• circulates hollow chambers in brain
• washes away toxins
• provides cushioning

Question 3

What makes up CNS?

What does PNS consist of?

Answer 3

CNS is brain and spinal cord

PNS

• 12 pairs cranial nerves
• 31 pairs of spinal nerves

Question 4

What kind of view is this of the brain?

Answer 4

Sagittal Plane

1. Telencephalon
2. Diencephalon
3. Brainstem
4. Metenchephalon: cerebellum
5. Mesencephalon: Midbrain
6. Metencephalon: Pons
7. Myelencephalon: Medulla
8. spinal cord
9. vertebrae
10. nose

Question 5

Forebrain

Answer 5

Cerebral Hemispheres

Telencephalon

Question 6

Thalamus and Hypothalamus

Answer 6

Diencephalon

Question 7

Midbrain

Answer 7

Mesencephalon

Question 8

Pons

Answer 8

Metencephalon

Question 9

Medulla

Answer 9

Myelencephalon

Question 10

Cerebellum and Pons

Answer 10

Metencephalon

Question 11

What order is the brainstem?

Answer 11

Midbrain, pons, medulla MPM

Mesencephalon, metencephalon, myelencephalon

Letters of the alphabet (s first, then tm then y)

Question 12

Label the blacked out figure

Answer 12

Above the Midbrain

Superior: Dorsal up top when standing Anterior front : Rostral Posterior: Caudal

Inferior: Ventral

Below the midbrain: shift once clockwise

This is because when we stand up the back of the head becomes dorsal

Below the Midbrain

Superior: Rostral

Anterior: Ventral Posterior: Dorsal

Inferior: Caudal

Question 13

SIngle name of sulci?

What is the sulci?

What is a signle gyri?

What is a gyri?

Answer 13

Single is sulcus

Those are the crevices lines in between all the brain fold

Single is gyrous

Those are the actual folds

Question 14

Answer 14

A) Later view

• Blue is frontal lobe: problem solving, movement, social interaction
• Orange is Parietal lobe: Sensory input, pain, touch, temperature
• Pink is Occipital lobe: Vission
• Green is Temporal lobe: Hearing, speech comprehension

B) Dorsal view (superior)

• left hemisphere and right hemisphere

Question 15

Answer 15

Midbrain

cerebral peduncle

inter peduncular foss

superior colliculus

inferior colliculus

Question 16

Answer 16

Pons

Trigeminal nerve cranial nerve 5

middle cerebellar peduncle: cerebellum attaches here

Question 17

Answer 17

Question 18

Answer 18

1. cerebral peduncle
2. inter-peduncular fossa
3. transgeminal nerve CN 5
4. middle cerebellar peduncle
5. olive
6. pyramid
7. superior colliculus
8. cranial nerve 5
9. middle cerebellar peduncle
10. inferior colliculus
11. middle cerebellar peduncle attaches to the cerebellum
12. fasciculus cuneatus
13. fasciculus gracilis