AP03 - the brain and its' meninges

Question 1

What are the 4 main lobes of the brain?

Answer 1

Frontal lobe
occipital lobe
parietal lobe
temporal lobe

Question 2

What is the frontal lobe for?

Answer 2

planning motor function

Question 3

What is the parietal lobe for?

Answer 3

proprioception

Question 4

What is the occipital lobe for?

Answer 4

optical sensory information

Question 5

What is the temporal lobe for?

Answer 5

receives auditory information

Question 6

What are the three hidden lobes?

Answer 6

insular, occipitoparietal, and limbic lobes

Question 7

What are the ridges and valleys called?

Answer 7

The ridges are Gyri and the valleys are Sulci

Question 8

What separates the frontal and parietal lobe?

Answer 8

The central sulcus

Question 9

What separates the temporal lobe from the frontal and parietal lobes?

Answer 9

The lateral sulci

Question 10

How could you see the insula?

Answer 10

separate the temporal and frontal lobes

Question 11

What is the limbic lobe for?

Answer 11

emotional response

Question 12

Where is the midbrain?

Answer 12

connects to the forebrain and hindbrain (just above the pons)

Question 13

What does the pons do?

Answer 13

relays signals from the forebrain to the cerebellum

Question 14

What does the midbrain do?

Answer 14

controls motor movement (like in the eye)

Question 15

What does the medulla do?

Answer 15

homeostasis

Question 16

What does the cerebellum do?

Answer 16

focuses fine motor movements

Question 17

What are the 3 layers to the meninges?

Answer 17

Dura mater (endosteal and meningeal)
Arachnoid layer
Pia mater

Question 18

What happens when the meningeal layer of the dura mater moves inwards?

Answer 18

it forms dural sinuses filled with venous blood

Question 19

What does the arachnoid layer contian

Answer 19

CSF

Question 20

What is the pia mater for?

Answer 20

BBB!!!!!!!

Question 21

What might happen after damage to the frontal lobe?

Answer 21

dementia

Question 22

What is one major effect of parietal lobe damage?

Answer 22

Gerstmann’s syndrome

left right confusion

Question 23

What might happen to those with a damaged occipital lobe?

Answer 23

partial blindness

Question 24

What symptoms might suggest there is damage to the temporal lobe?

Answer 24

hearing loss

Question 25

How might you alleviate the symptoms of epilepsy?

Answer 25

cutting through the corpus callosum in a corpus callosotomy

Question 26

What is a subdural haematoma?

Answer 26

venous blood collections between the endosteal and meningeal layers of the dura

Question 27

What is an epidural haematoma

Answer 27

arterial blood collects between the inner table of the skull and the stripped-off dural membrane

Question 28

What are the left and righ sides of the brain separated by?

Answer 28

longitudinal fissue

Question 29

What is the occipital lobe separated from the cerebellum by?

Answer 29

tentorium cerebelli

Question 30

What are the lobes of the cerebellum?

Answer 30

rostral lobe caudal lobe Flocculonodular lobe

Question 31

What are the three main functions of the CSF?

Answer 31

protection bouyancy chemical stability

Question 32

Where is the 3rd ventricle located?

Answer 32

inferior and medial to the lateral ventricles

Question 33

Where is the 4th ventricle located?

Answer 33

inferior to the lateral ventricles, posterior to the 3rd ventricle

Question 34

Where does the 4th ventricle receive CSF from?

Answer 34

3rd ventricle via the cerebral aqueduct.

Question 35

Where does the 4th ventricle send CSF to?

Answer 35

central spinal canal | subarachnoid cisterns

Question 36

Where is CSF reabsorbed?

Answer 36

the arachnoid villi into dural sinuses

Question 37

How does the colliculus orientate a mammal to its' surroundings?

Answer 37

Saccades (vertical and horizontal)

Question 38

Where do horizontal saccades go through?

Answer 38

the Pons

Question 39

What do vertical saccades go through?

Answer 39

the midbrain

Question 40

What is the corpus callosum for?

Answer 40

coordination between left and right hemispheres

Question 41

What is the structure of the corpus callosum?

Answer 41

Anterior (Genu, Rostrum) Body Posterior (Splenium, the big bit)

Question 42

How might the symptoms of epilepsy be alleviated?

Answer 42

corpus callostomy