Head

Question 1

What are the general structures that comprise the brain

Answer 1

White matter
Grey matter
Hemispheres
Sulcus: sylvian fissure/ central gyrus
Falx cerebri
Meninges: dura matter, arachnoid, pia matter

Question 2

what is grey matter and where is it found

Answer 2

neuron cell bodies

cerebral cortex

Question 3

what is white matter and where is it found

Answer 3

myelinated axons

deep in the cortex

Question 4

what is the gyri and sulcus

Answer 4

gyri- ridges

sulcus- grooves

Question 5

what are the meninges

outermost, middle and inner membranes

Answer 5

Surrounds and protects the brain
Outermost membrane: the dura matter is the strongest
Middle membrane: arachnoid membrane (spiderlike)
Inner layer: pia matter

Question 6

what are the lobes of the brain

Answer 6

frontal
parietal
temporal
occipital
cerebellum

Question 7

what makes up the anterior cranial fossa

Answer 7

Composed primarily of the frontal bone, ethmoid bone, and lesser wing of the sphenoid bone
Contains the frontal lobes of the brain

Question 8

What makes up the middle cranial fossa

Answer 8

Formed primarily by the body of the sphenoid and temporal bones
Houses the pituitary gland, hypothalamus and temporal lobes of the brain

Question 9

what makes up the posterior cranial fossa

Answer 9

Formed by the occipital and temporal bones

Contains the cerebellum and brainstem

Question 10

what are the 8 cranial bones

Answer 10

parietal
frontal
ethmoid
sphenoid
occipital
temporal
petrous
mastoid

Question 11

what is the falx cerebri

Answer 11

dura matter separating the hemispheres of the brain

Question 12

what are the 3 facial bones

Answer 12

maxillary
zygomatic
mandible

Question 13

what does the thalamus do

Answer 13

Serves as a relay station to and from the cerebral cortex for all sensory stimuli, with the exception of the olfactory nerves

Question 14

what are the segments of the brain stem and what order are then in from superior to inferior

Answer 14

midbrain, pons, and medulla oblongata

Question 15

what is the corpus callosum?

Answer 15

The largest and densest bundle of white matter fibres within the cerebrum
Forms the roof of the lateral ventricles and connects the right and left cerebral hemispheres

Question 16

what are the cerebral-spinal fluid compartments

Answer 16

Lateral ventricles
Choroid plexus
Third ventricle
Cerebral aqueduct

Question 17

what main vessels comprise the arterial supply of the head

Answer 17

internal carotid arteries
anterior cerebral artery
middle cerebral artery
anterior communicating artery
basilar artery
posterior communicating artery

Question 18

what main vessels comprise the venous drainage of the head

Answer 18

internal jugular veins

superior sagittal sinus

Question 19

what main vessels make up the COW

Answer 19

Aorta
brachiocephalic trunk
left subclavian artery
left and right vertebral arteries
left and right common carotid arteries
basilar artery
posterior cerebral artery
posterior communicating artery
middle cerebral artery
anterior cerebral artery
anterior communicating artery

Question 20

what are the two main nerves of the head

Answer 20

vagus

trigeminal

Question 21

What are the three arteries feeding blood into the Circle of Willis?

Answer 21

Basilar artery
Left internal Carotid artery
Right internal Carotid artery

Question 22

he Internal Carotid artery divides into what arteries at the Circle of Willis?

Answer 22

Middle Cerebral artery
Posterior communicating artery
Anterior cerebral artery