Brain & Spinal Cord 2

Question 1

What fibres pass through the corpus callosum?

Answer 1

Commisural

Question 2

What are the four parts of the corpus callosum?

Answer 2

Rostrum
Genu
Body
Splenium

Question 3

Which part of the corpus callosum lies posteriorly?

Answer 3

Splenium

Question 4

What is the septum pellucidum?

Answer 4

Thin sheet that separates the anterior horns of the two lateral ventricles

Question 5

What is the fornix?

Answer 5

Bundle of fibres which links the hippocampus with the mammilary bodies of the hypothalamus

Question 6

What is the main function of the thalamus?

Answer 6

Sensory relay area

Question 7

What are some functions of the hypothalamus?

Answer 7

Homeostasis
Thirst/Hunger
Growth
Sleep
Mood
Sex drive

Question 8

What dural fold lies over the pituitary gland?

Answer 8

Diaphragma sellae

Question 9

Where are the colliculi in relation to the pineal gland?

Answer 9

Surrounds the pineal gland

Question 10

Where is the pineal gland found?

Answer 10

Behind the third ventricle

Question 11

What do the commissural fibres connect?

Answer 11

Two cerebral hemispheres

Question 12

What do association fibres connect?

Answer 12

Within hemisphere

Question 13

What do projection fibres connect?

Answer 13

Cerebral to other parts of the brain

Question 14

What is the internal capsule made up of?

Answer 14

Myelinated axons

Question 15

Which cerebral artery supplies the internal capsule?

Answer 15

Middle cerebral artery

Question 16

What is the substantia nigra part of?

Answer 16

Basal ganglia

Question 17

What type of fibres make up the pyramidal tracts?

Answer 17

Motor

Question 18

What makes the cervical vertebra identifiable?

Answer 18

Lots of white matter

Question 19

What makes the thoracic vertebra identifiable?

Answer 19

Lateral horn

Question 20

What makes the lumbar vertebra identifiable?

Answer 20

Large ventral horn

Question 21

What makes the sacral vertebra identifiable?

Answer 21

Less white matter - Fewer tracts

Question 22

Why does the size of the ventral grey horn vary along the spinal cord?

Answer 22

Because they innervate upper and lower limbs

Question 23

What is the opening for CN I?

Answer 23

Cribriform plate of ethmoid plate

Question 24

What is the opening for CN II?

Answer 24

Optic canal

Question 25

What is the opening for CN III, IV, V1 & VI?

Answer 25

Superior Orbital Fissure

Question 26

What is the opening for CN V2?

Answer 26

Foramen rotundum

Question 27

What is the opening for CN V3?

Answer 27

Foramen ovale

Question 28

What is the opening for CN VII & VIII?

Answer 28

Internal Acoustic Meatus

Question 29

What is the opening for CN IX,X & XI?

Answer 29

Jugular Foramen

Question 30

What is the opening for CN XII?

Answer 30

Hypoglossal Canal

Question 31

Which on cranial nerves have a parasympathetic component?

Answer 31

CN III, VII, IX & X

Question 32

Which cranial nerves are attached directly to the brain?

Answer 32

CN I & II

Question 33

Which cranial nerves are attached directly to the midbrain?

Answer 33

CN III, IV & V

Question 34

Which cranial nerve arises directly from the posterior aspect of the brain?

Answer 34

CN IV

Question 35

Which cranial nerves are attached directly to the pons?

Answer 35

CN V, VI, VII & VIII

Question 36

Which cranial nerves are attached directly to the pontomedullary junction?

Answer 36

CN VI, VII & VIII

Question 37

Which cranial nerves are attached directly to the medulla?

Answer 37

CN IX, X, XI & XII

Question 38

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

Answer 38

CN III

Question 39

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

Answer 39

CN V2