Anatomy

Question 1

What are the three primary brain vesicles in embryology?

Answer 1

Prosencephalon (forebrain)
Mesencephalon (midbrain)
Rhombencephalon (hindbrain)

Question 2

What secondary brain vesicles are formed?

Answer 2

Prosencephalon becomes telencephalon and diencephalon

Rhombencephalon becomes metencephalon and myelencephalon

Question 3

What do the five secondary brain vesicles go on to form?

Answer 3

Telencephalon-cerebrum
Diencephalon-thalamus
Mesencephalon-midbrain
Metencephalon-pons and cerebellum
Myelencephalon-medulla oblongata

Question 4

Which ventricles lie in what area of the brainstem?

Answer 4

Third ventricle lies at the rostral margin of the midbrain

Fourth ventricle lies at the dorsum of the brainstem

Question 5

Which cranial nerves come from the pontomedullary junction?

Answer 5

Facial and vestibulocochlear

Question 6

What part of the brain lies immediately superior to the midbrain?

Answer 6

Diencephalon of forebrain (thalamus and hypothalamus)

Question 7

What is the name of the structure connecting the two cerebellar hemispheres?

Answer 7

Vermis

Question 8

Which peduncles connect the cerebellum to which parts of the brainstem?

Answer 8

Inferior peduncles-medulla
Middle-pons
Superior-midbrain

Question 9

Which ventricular space lies immediately anterior to the cerebellum?

Answer 9

Fourth ventricle

Question 10

In which lobe is the calcarine sulcus found?

Answer 10

Occipital

Question 11

What dural fold separates the two cerebral hemispheres and to what bony structures is it attached to?

Answer 11

Falx cerebri

Crista galli and anterior frontal process

Question 12

To what bony structures is the tentorium cerebelli attached to?

Answer 12

Clinoid process of sphenoid

Question 13

What is the fold of dura called that surrounds the pituitary stalk?

Answer 13

Diaphragm sella

Question 14

What are the four parts of the corpus callosum and how are they situated?

Answer 14

Rostrum and genu lie anteriorly whilst splenium is posterior. Body is in the middle

Question 15

What is the name of the fissure between the two cerebral hemispheres?

Answer 15

Median longitudinal fissure

Question 16

What does the lateral sulcus separate?

Answer 16

Temporal and parietal/frontal lobe

Question 17

What areas do the anterior, posterior and middle cerebral arteries supply which would be relevant in stroke symptoms?

Answer 17

Anterior-primary motor cortex
Middle-primary auditory area, olfaction area
Posterior-primary sensory area, primary visual cortex

Question 18

What layer of dura separates the two cerebral hemispheres?

Answer 18

Falx cerebri

Question 19

What layer of dura separates the parietal and occipital lobes?

Answer 19

Tentorium cerebelli

Question 20

What are three types of spinal cord tumour?

Answer 20

Intramedullary
Intradural extramedullary
Extradural