General Brain Anatomy

Question 1

What is the light blue lobe called?

Answer 1

Frontal lobe

Question 2

What is the purple lobe called?

Answer 2

Parietal lobe

Question 3

What is the green lobe called?

Answer 3

Occipital lobe

Question 4

What is the red lobe called?

Answer 4

Cerebellum

Question 5

What is the yellow lobe called?

Answer 5

Temporal lobe

Question 6

What are the gyri?

Answer 6

The rolls of the cerebral cortex

Question 7

What are the sulci?

Answer 7

The grooves between the gyri

Question 8

What is the central sulcus?

Answer 8

A large fissure separating the frontal from the parietal lobes

Question 9

What is the lateral sulcus?

Answer 9

A large fissure that separates the temporal lobe from the parietal and frontal lobes

Question 10

What is the corpus callosum?

Answer 10

A large bundle of white matter connecting the two hemispheres

Question 11

What are the layers of membranes surrounding the brain and spinal cord called?

Answer 11

The meninges

Question 12

How many layers of the meninges are there and what are they called?

Answer 12

3

• The dura mater
• The arachnoid mater
• The pia mater

Question 13

What is the dura mater?

Answer 13

The outer layer of the meninges that lines the interior of the skull

Question 14

What is the arachnoid mater?

Answer 14

The delicate, middle layer of the meninges that invests the brain loosely- doesn’t follow the surface closely

Question 15

What is the pia mater?

Answer 15

The inner layer of the meninges that is closely attached to the surface of the brain and closely adherent to the underlying nervous tissue

Question 16

What supplies arterial blood to the brain?

Answer 16

• Internal carotid arteries
• Vertebro-basilar system
• Circle of Willis
• Blood-brain barrier

Question 17

What is the venous drainage of the brain?

Answer 17

• Cerebral veins
• Dural venous sinuses

Question 18

What is the frontal lobe?

Answer 18

It is the primary motor cortex and prefrontal cortex

Question 19

What is the temporal lobe?

Answer 19

• Primary auditory cortex
• Auditory assosciation cortex
• Hippocampus
• Amygdala

Question 20

What is the parietal lobe?

Answer 20

• Primary somatosensory cortex
• Assosciation cortex

Question 21

What is the occipital lobe?

Answer 21

• Primary visual cortex
• Visual assosciation cortex

Question 22

What is the cerebellum?

Answer 22

• Motor control of equilibrium
• Posture and muscle tone
• Movement co-ordination

Question 23

What is the insula?

Answer 23

The floor of the lateral sulcus

Question 24

What is the opercula?

Answer 24

The parts of the temporal, frontal and parietal lobes that overlie the insula

Question 25

Where are the olfactory tracts?

Answer 25

Running on the inferior surface of the frontal lobes

Question 26

Where are the optic nerves?

Answer 26

Passing backwards and medially, converging in the midline to form the optic chiasma

Question 27

Where are the mammillary bodies?

Answer 27

They are the two rounded eminences behind the optic chiasma

Question 28

Where is the hypothalamus?

Answer 28

Behind the optic chiasma up to and including the mammillary bodies

Question 29

What is the white matter?

Answer 29

Contains relatively few cell bodies and composed mainly of long-ranged myelinated axons

Question 30

What is the grey matter?

Answer 30

Numerous cell bodies and relatively few myelinated axons

Question 31

What is neurophil?

Answer 31

Fibrous network of unmyelinated nerve fibres interrupted by numerous synapses occupying the space between neuronal cell bodies