Nervous System: Anatomy Class 2

Question 1

What kinds of fibres pass through the corpus callosum ?

Answer 1

Commissural Fibres

Question 2

What are the 4 parts of the corpus callosum ?

Answer 2

1: Splenium
2: Body
3: Genu
4: Rostrum

Question 3

What separates the 2 anterior horns of the lateral ventricles ?

Answer 3

Septum Pellicidum

Question 4

What is the fornix ?

Answer 4

The fornix is a bundle of fibres which links the hippocampus with the hypothalamus

Question 5

What is the bulbous projection on the floor of the lateral ventricle ?

Answer 5

Caudate nucleus

Question 6

List some of the functions of the hypothalamus

Answer 6

Temperature control
Appetite
Thirst
Sleep cycle

Question 7

What does the stalk of the pituitary gland hang from ?

Answer 7

The hypothalamus

Question 8

What does the lentiform nucleus consist of ?

Answer 8

The putamen and the globus pallidus

Question 9

What does the striatum consist of ?

Answer 9

Caudate nucleus and the putamen

Question 10

What is the basal ganglia (nucleus) formed from ?

Answer 10

The striatum and the lentiform nucleius

Question 11

What is the name of the white mater structure which is situated in the infromedial part of each cerebral hemisphere ?

Answer 11

The internal capsule

Question 12

What is the main blood supply to the internal capsule ?

Answer 12

Middle cerebral artery

Question 13

What kinds of fibres connect the cerebral hemispheres with other parts of the brain ?

Answer 13

Projection fibres

Question 14

What kinds of fibres connect regions within the same hemisphere of the brain ?

Answer 14

Association fibres

Question 15

Which group of structures is the substantia nigra a part of, functionally ?

Answer 15

The basal ganglia

Question 16

At what vertebral level does the spinal cord end in adults ?

Answer 16

L2/L3

Question 17

What does a slice of the spinal cord look like in the cervical region ?

Answer 17

The body is oval and thick with thin dorsal and ventral horns

Question 18

What does a slice of the spinal cord look like in the Thoracic region ?

Answer 18

Small round body with thin dorsal horns

Question 19

What does a slice of the spinal cord look like in the Lumbar region ?

Answer 19

Round body with large ventral horns

Question 20

What does a slice of the spinal cord look like in the sacral region ?

Answer 20

round body with very large ventral horns

Question 21

Which aspect of the spinal cord receives sensory nerve fibres ?

Answer 21

Dorsal root ganglia

Question 22

From which aspect of the spinal cord do motor nerve fibres project ?

Answer 22

Ventral root

Question 23

What is the name of the hole in the middle of the spinal cord and what does it contain ?

Answer 23

Central canal and CSF

Question 24

Through which foramen does Cranial Nerve I pass through and which cranial nerve is this ?

Answer 24

The olfactory nerve passes through the cribriform plate of the ethmoid bone

Question 25

Through which foramen does Cranial Nerve III pass through and which cranial nerve is this ?

Answer 25

Occulomotor nerve passes through the superior orbital fissure

Question 26

Through which foramen does Cranial Nerve II pass through and which cranial nerve is this ?

Answer 26

The optic nerve passes through the optic foramen (canal)

Question 27

Through which foramen does Cranial Nerve IV pass through and which cranial nerve is this ?

Answer 27

The trochlear nerve passes through the superior orbital fissure

Question 28

Through which foramen does Cranial Nerve V pass through and which cranial nerve is this ?

Answer 28

The trigeminal nerve has 3 components to it (V1-3) each going through their own foramen within the skull

Question 29

Through which foramen does Cranial Nerve V1 pass through and which cranial nerve is this ?

Answer 29

This is the opthalmic branch of the trigeminal nerve, this pass through the superior orbital fissure

Question 30

Through which foramen does Cranial Nerve V2 pass through and which cranial nerve is this ?

Answer 30

This is the maxillary branch of the trigeminal nerve which goes through the foramen rotundum

Question 31

Through which foramen does Cranial Nerve V3 pass through and which cranial nerve is this ?

Answer 31

This is the mandibular branch of the trigeminal nerve which goes through foramen ovale within the skull

Question 32

Through which foramen does Cranial Nerve VI pass through and which cranial nerve is this ?

Answer 32

This is the abducent nerve which passes through the superior orbital fissure

Question 33

Through which foramen does Cranial Nerve VII pass through and which cranial nerve is this ?

Answer 33

This is the facial nerve which pass through the stylomastoid foramen

Question 34

Through which foramen does Cranial Nerve VIII pass through and which cranial nerve is this ?

Answer 34

This is the vestibulocochlear nerve which passes through the Internal acoustic meatus

Question 35

Through which foramen does Cranial Nerve IX pass through and which cranial nerve is this ?

Answer 35

This is the glossopharyngeal nerve which pass through the jugular foramen

Question 36

Through which foramen does Cranial Nerve X pass through and which cranial nerve is this ?

Answer 36

This is the vagus nerve and it exits the skull through the jugular foramen

Question 37

Through which foramen does Cranial Nerve XI pass through and which cranial nerve is this ?

Answer 37

This is the accessory nerve which passes through the jugular foramen

Question 38

Through which foramen does Cranial Nerve XII pass through and which cranial nerve is this ?

Answer 38

This is the hypoglossal nerve which exits the skull via the hypoglossal canal

Question 39

Cranial nerve I contains what kind of fibres ?

Answer 39

Purely special snnsory

Question 40

Cranial nerve II contains what kind of fibres ?

Answer 40

Purely special sensory

Question 41

Cranial nerve III contain what kind of fibres ?

Answer 41

Purely motor

Question 42

Cranial nerve IV contains what kind of fibres ?

Answer 42

Purely motor

Question 43

Cranial nerve V contains what kind of fibres ?

Answer 43

Both sensory and motor

Question 44

Cranial nevre VI contains what kind of fibres ?

Answer 44

Purely motor

Question 45

Cranial nerve VII contains what kind of fibres ?

Answer 45

Both motor and sensory

Question 46

Cranial nerve VIII contains what kind of fibres ?

Answer 46

Purely sensory

Question 47

Cranial nerve IX contains what kind of fibres ?

Answer 47

Glossopharyngeal nerve contains both sensory and motor

Question 48

Cranial nerve X contains what kind of fibres ?

Answer 48

Both motor and sensory

Question 49

Cranial nerve XI contains what kind of fibres ?

Answer 49

Purely motor

Question 50

Cranial nerve XII contains what kind of fibres ?

Answer 50

Motor fibres only

Question 51

What cranial nerves can transmit parasympathetic fibres ?

Answer 51

``` There are only 4: Vagus Glossopharyngeal Occulomotor Facial ```