Intro to CNS (Lecture 1)

Question 1

Basic Function of CNS?

Answer 1

Collect, process & send info (sensory & motor)

Question 2

What Units Make up CNS?

Answer 2

Neurons (100b) + Glia (support cells) (1000b)

Question 3

How do Neurones Communicate?

Answer 3

Secretion of NT’s at Boutons

Question 4

What is at the ‘Base’ of a neurone?

Answer 4

Dendrites

Question 5

What is the apex of a neurone?

Answer 5

Axon

Question 6

How are NT vesicles moved to the Presynaptic membrane?

Answer 6

Microtubule Transport with energy via Mitochondria

Question 7

What is LTP (Long Term Potentiation?)

Answer 7

Changing function of dendritic spines due to repetitive stimulation of neurone pathways over time. Allows learning in CNS.

Question 8

What is Grey Matter?

Answer 8

Collection of neurones, synapses & processes (& support cells)

Question 9

Where is Grey Matter found?

Answer 9

Brain (outside) & Spinal Cord (inside)

Question 10

What cells perform myelination?

Answer 10

Schwann cells in PNS

Oligodendrocytes in CNS

Question 11

What are the gaps between myelinated parts of neurones called?

Answer 11

Nodes of Ranvier

Question 12

What is White Matter?

Answer 12

Collection of nerve fibres (mostly myelinated)

Question 13

Label the Head Diagram with Names

Answer 13

See Word Document

Question 14

Descrive the different slice directions

Answer 14

Coronal = Headphone
Sagittal = Arrow
Horizontal

Question 15

2 Main Parts of CNS

Answer 15

Brain & Spinal Cord

Question 16

Label the Brain Diagram - include Diencephalon, Brain Stem (Mid, Pons, Medulla), Cerebellum & Hemispheres

Answer 16

See Word Doc

Question 17

Label the Brain Diagram (2) - Lobes, Sulci & Fissures

Answer 17

Central Sulcus
Parieto-Occipital Sulcus
Lateral Fissure with Insula
Pre-Occipital Notch

Question 18

Where is the Insula?

Answer 18

Floor of lat fissure

Question 19

What do Gyri do?

Answer 19

Increase surface area & vol of grey matter (cortex)

Question 20

What is found either side of Central Sulcus?

Answer 20

Precentral & Postcentral Gyri

Question 21

What makes up the Diencephalon?

Answer 21

Thalamus, Hypothalamus & more

Question 22

What makes up the Brainstem (3 parts)

Answer 22

Midbrain
Pons
Hindbrain

Question 23

Where is the Interventricular Foramen?

Answer 23

Between Lateral & 3rd Ventricles

Question 24

Where is the Cerebral Aqueduct?

Answer 24

Between 3rd & 4th ventricles

Question 25

What Ventricle is the Midbrain Related to?

Answer 25

3rd

Question 26

What part of the brainstem is the 4th Ventricle related to?

Answer 26

Medulla

Question 27

What is the name given to the largest collection of white matter?

Answer 27

Corpus Callosum

Question 28

Label the Brain Diagram with Corpus Callosum, IV Foramen, Cingulate Gyrus, Fornix & Thalamus

Answer 28

See Word Doc

Question 29

Where is Thalamus found?

Answer 29

Wall of 3rd ventricle

Question 30

Label the CT similar to Q. 28

Answer 30

See Word Doc

Question 31

Name the type of slice taken on Image 6

Answer 31

Coronal/Saggital

Question 32

Name the 2 major parts of White Matter within Cerebral Hemisphere

Answer 32

Corona Radiata | Internal Capsule

Question 33

What is the Internal Capsule?

Answer 33

White Matter Fibres Passing To/From Midbrain

Question 34

Label Int Capsule, Putamen (& Globus Pallidus), Thalamus & Caudate Nucleus on Image 7

Answer 34

Word Doc

Question 35

Now point to these structures on Image 6

Answer 35

Word Doc

Question 36

What makes up the Lentiform Nucleus?

Answer 36

Putamen | Globus Pallidus

Question 37

What is Amygdala?

Answer 37

End of the Tail of the Caudate Nucleus (Locate on Image 7)

Question 38

What Type of Slice is Image 9? Label Image 9

Answer 38

Horizontal

Question 39

Name the bulges of the midbrain. How many are there?

Answer 39

Cerebral peduncles. | 2.

Question 40

Label the parts of the midbrain on Image 12.

Answer 40

Cerebral Aqueduct | Cerebral Peduncles

Question 41

How many bulges does the Pons have?

Answer 41

1

Question 42

What is the name of the Pons' peduncle?

Answer 42

Middle Cerebellar Peduncle

Question 43

Label the features of the Pons on Image 13.

Answer 43

Include 4th Ventricle

Question 44

How many Bulges in Medulla?

Answer 44

4

Question 45

Label Image 14 - Features of the Medulla

Answer 45

Pyramids | Olives

Question 46

What makes up the Pyramids of the Medulla?

Answer 46

White Matter

Question 47

What side do most Cranial Nerves exit from?

Answer 47

Ventral

Question 48

Where do most Cranial Nerves Emerge From? How many?

Answer 48

Brainstem. | 10.