Blood Flow Around the Brain
Blood Flow Around the Head
Cranial Nerves
Muscles of the face
Tongue
Orbit
All about the Brain
100
This artery is not part of the Circle of Willis
Middle cerebral artery
100
The facial artery branches off of the...
External carotid artery
100
Which cranial nerve is responsible for eye movement?
CN III Oculomotor n.
100
Which muscle closes the eye?
Orbicularis oculi m.
100
Which nerves innervate the tongue?
CN V3, CN VII, and CN IX
100
Identify the orange circled area.
Optic chiasm
100
What is 8?
8: Frontal lobe
200
The basilar artery connects to the internal carotid artery via the...
Posterior communicating arteries.
200
The internal carotid artery enters the neurocranium through the...
Carotid canal
200
Where does the CN VI Abducens nerve exit the neurocranium?
Superior orbital fissure
200
Which facial muscle is responsible for furrowing the brow?
Occipitofrontalis m.
200
Which landmark on the tongue divides the anterior and posterior tongue?
Terminal sulcus
200
What is the red structure?
Red: Optic nerve (to chiasm)
200
What is 16?
16: Occipital lobe
300
The superior petrosal sinus drains to the...
Sigmoid sinus -> Internal jugular vein
300
Identify 11.
Superficial temporal artery
300
Which cranial nerves travel through the cavernous sinus? Name all.
CN III Oculomotor n., CN IV Trochlear n., CN V Trigeminal n., CN VI Abducent n.
300
Which muscle elevates the upper lip?
Levator labii superioris m.
300
The special sense of taste is provided to the anterior 2/3rds of the tongue by which cranial nerve?
CN VII Facial n.
300
Which body of the eye produces aqueous humor?
The aqueous body.
300
What is 18?
18: Temporal lobe
400
This sinus drains structures closer to the base of the skull.
Cavernous sinus.
400
Identify 2
Maxillary artery
400
Name the parasympathetic cranial nerves.
CN III Oculomotor nerve
CN VII Facial nerve
CN IX Glossopharyngeal nerve
400
Which muscle tenses and flares the neck?
Platysma m.
400
The special sense of taste is provided to the posterior 1/3rd of the tongue by which cranial nerve?
CN IX Glossopharyngeal n.
400
Where is aqueous humor drained into the venous system?
Canal of Schlemm
400
What is 3?
3: Choroid plexus
500
Which structures meet at the Confluence of Sinuses?
Inferior sagittal sinus
Superior sagittal sinus
Straight sinus
Transverse sinuses
500
Identify 4
Angular vein
500
This part of CN V trigeminal n. is responsible for cutaneous sensation around the nose and cheeks.
CN V2 Maxillary division
500
Which muscle laterally moves the cheeks?
Buccinator m.
500
General sensation to the posterior 1/3rd of the tongue is provided by which cranial nerve?
CN IX Glossopharyngeal.
500
Describe the flow of aqueous humor from the first chamber it enters to venous drainage.
1. Posterior chamber (Zonular fibers, ciliary body, lens)
[Through small opening between lens and iris]
2. Anterior chamber (Cornea)
3. Canal of Schlemm
500
What is 7?
7: Fornix
600
Which artery connects the anterior cerebral arteries?
Anterior communicating artery.
600
Identify 7
Pterygoid plexus
600
Which cranial nerves exit through the jugular foramen?
CN IX Glossopharyngeal
CN X Vagus
CN XI Spinal accessory
600
Which muscle shapes the lips for speech?
Orbicularis oris m.
600
General sensation to the anterior 2/3rds of the tongue is provided by which cranial nerve? Be specific.
CN V3 Mandibular branch of the Trigeminal n.
Specifically the lingual nerve
600
What is the part of the retina that has the greatest visual acuity?
Fovea centralis
600
What structure connects the third and fourth ventricles?
Cerebral aqueduct