Week 2 - WET + DRY

Question 1

What kind of fibres pass through the corpus callosum?

Answer 1

Commisural

Question 2

Label the rostrum, genu, body, splenium of the corpus callosum.

Answer 2

Question 3

What thin sheet seperates the anterior horns of the two lateral ventricles?

Answer 3

Septum pellucidum

Question 4

What is the main function of the hypothalamus?

Answer 4

Neuroendocrine role

More specificly :

Hormone production

Regulation of body tempurature

Regulation of behaviour/emotions

Question 5

Where are the colliculi (a component of the midbrain) in relation to the pineal gland?

Answer 5

Inferior

Question 6

What structures constitute the basal ganglia?

Answer 6

Caudate

Putamen

Globus Pallidus

Substantia Nigra

Sub-thalamic Nuclei

Question 7

The internal capsule is made up of white or grey matter?

Answer 7

White matter (myelinated axons)

Question 8

What is the name given to the fibres that connect the cerebral hemispheres with other parts of the brain?

Answer 8

Association

Question 9

The internal capsule is made up of an anterior limb, genu and a posterior limb. Identify these on a diagram.

Answer 9

Question 10

Which cerebral artery through one of its branches supplies the internal capsule?

Answer 10

Middle cerebral

Question 11

in the midbrain, where would the red nucleus be in relation to the substantia nigra, anterior or posterior to it?

Answer 11

Posterior

Question 12

Identify the part of the midbrain called as the cerebral peduncles. What fibres does it contain?

Answer 12

Projection -consist of efferent and afferent fibers uniting the cortex with the lower parts of the brain and with the spinal cord.

Question 13

What fibres make up the pyramids of the medulla?

Answer 13

Motor fibres - corticospinal tract

Question 14

List the features that can be used to identify the region of spinal cord each section comes from.

Answer 14

Cervical - mostly white matter

Thoracic - lateral horns in grey matter

Lumbar - process of elimination

Sacral -mostly grey matter

Question 15

Which aspect of the spinal cord receives sensory nerve fibres?

Answer 15

Dorsal horn

Question 16

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

Answer 16

Ventral horn

Question 17

Why does the size of the ventral grey horn vary along the spinal cord (most noticeably in cervical and lumbar regions)?

Question 18

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

Answer 18

Central canal - CSF

Question 19

Opening for Olfactory nerve.

Answer 19

Cribriform plate of ethmoid bone.

Question 20

Opening for optic nerve.

Answer 20

Optic foramen/canal

Question 21

Opening for occulomotor nerve

Answer 21

Superior orbital fissure

Question 22

Opening for trochlear nerve

Answer 22

Superior orbital fissure

Question 23

Opening for V₁

Answer 23

Superior orbital fissure

Question 24

Opening for V₂

Answer 24

Foramen rotundum

Question 25

Opening for V₃

Answer 25

Foramen ovale

Question 26

Opening for abducens nerve

Answer 26

Superior orbital fissure

Question 27

Opening for facial nerve

Answer 27

Internal acoustic meatus

Question 28

Opening for vestibulocochlear nerve

Answer 28

Internal acoustic meatus

Question 29

Opening for glossopharyngeal nerve

Answer 29

Jugular foramen

Question 30

Opening for vagus nerve

Answer 30

Jugular foramen

Question 31

Opening for accessory nerve

Answer 31

Jugular foramen

Question 32

Opening for hypoglossal nerve

Answer 32

Hypoglossal canal

Question 33

Which of the cranial nerves have a parasympathetic component?

Answer 33

III, VII, IX, X

Question 34

Which cranial nerve(s) are attached directly to the brain?

Answer 34

I, II

Question 35

Which cranial nerve(s) are attached directly to the midbrain?

Answer 35

III, IV

Question 36

Which is the only cranial nerve to arise from the posterior aspect of the brain?

Answer 36

IV

Question 37

Which cranial nerve(s) are attached directly to the pons?

Answer 37

V

Question 38

Which cranial nerve(s) are attached directly to the pontomedullary junction?

Answer 38

VI, VII, VIII

Question 39

Which cranial nerve(s) are attached directly to the medulla?

Answer 39

IX, X, XI, XII

Question 40

Which cranial nerve can be tested by the pupillary light reflex?

Answer 40

II, III

Question 41

Which cranial nerve can be tested by touch over the surface of the cheek?

Answer 41

V**₂**

Question 42

What cranial nerve would you be testing if you asked the patient to stick their tongue out?

Answer 42

XII