Anatomy 2 Flashcards
Despina is experiencing a hoarse voice, which cranial nerve is likely affected?
Trigeminal (V)
Vagus (X)
Facial (VII)
Hypoglossal (XII)
Despina is experiencing a hoarse voice, which cranial nerve is likely affected?
Trigeminal (V)
Vagus (X)
Facial (VII)
Hypoglossal (XII)
Despina is experiencing vertigo, which cranial nerve is likely affected?
Trigeminal (V)
Vestibulocochlear (VIII)
Facial (VII)
Hypoglossal (XII)
Despina is experiencing vertigo, which cranial nerve is likely affected?
Trigeminal (V)
Vestibulocochlear (VIII)
Facial (VII)
Hypoglossal (XII)
what is this strucutre highlighted at the top? [1]
thalamus
what are the structure highlighted?
cerebral peduncles x
which of the following is the olive?
A
B
C
D
E
which of the following is the olive?
A
B
C
D
E
which of the following is the medulla pyramids?
A
B
C
D
E
which of the following is the medulla pyramids?
A
B
C
D
E
which of the following shows where decussation occurs?
A
B
C
D
E
which of the following shows where decussation occurs?
A
B
C
D
E
which of the following are the cerebellar peduncles?
A
B
C
D
E
which of the following are the cerebellar peduncles?
A
B
C
D
E
which of the following are the inferior colliculus?
A
B
C
D
E
which of the following are the inferior colliculus?
A
B
C
D
E
which of the following are the superior colliculus?
A
B
C
D
E
which of the following are the superior colliculus?
A
B
C
D
E
which of the following is the 4th ventricle?
A
B
C
D
E
which of the following is the 4th ventricle?
A
B
C
D1
E
which is the only CN to leave the brainstem dorsally? [1]
what level of brainstem does ths occur at ? [1]
which is the only CN to leave the brainstem dorsally? [1]
trochlear nerve
what level of brainstem does ths occur at ? [1]
inferior colliculi
A: midbrain - identified by the large cerebral peduncles
B: medulla (superior / open)
C: pons - iD by bugle at front
D medulla inferior
where do you find the spinothalamic tract
pons
midbrain
medulla
where do you find the spinothalamic tract
pons
midbrain
medulla
which artery supplies the lateral aspect of the midbrain?
vertebral artery
basilar artery
anterior spinal artery
pontine branches
PICA
which artery supplies the lateral aspect of the midbrain?
vertebral artery
basilar artery
anterior spinal artery
pontine branches
PICA
which is the inner most layer of the eye?
cornea
lens
fovea
retina
iris
which is the inner most layer of the eye?
cornea
lens
fovea
retina
iris
which two structures join to form the optic disc? [2]
which two structures join to form the optic disc? [2]
optic nerve & retina
which location in the eye is the location of maximal photoreceptor density?
optic disc
macula
iris
lens
retina
which location in the eye is the location of maximal photoreceptor density?
optic disc
macula
iris
lens
retina
optic nerve fibres exit the eye ball and enter the cranium through the WHAT? [1]
what are the optic nerves surrounded by extensions of ? [2]
optic nerve fibres exit the eye ball and enter the cranium through the WHAT? [1]
optic canal
what are the optic nerves surrounded by extensions of ? [2]
The optic nerves are surrounded by extensions of the cranial meninges and subarachnoid space, which is filled with CSF.
- After travelling through the canal the nerve enters the middle cranial fossa. Each nerve meets to form the WHAT? [1]
- Fibres from the medial aspect of the eye WHAT to the opposite side and then continue on via the WHAT?
- As a result the optic tracts contain fibres from the XX side of the eye on the XX side and the XX retina from the XX site, thus carrying all information from the same half of the visual field.
After travelling through the canal the nerve enters the middle cranial fossa. Each nerve meets to form the optic chiasm.
- Fibres from the medial aspect of the eye cross over to the opposite side and then continue on via the optic tracts.
- As a result the optic tracts contain fibres from the lateral (temporal) retina of the eye on the same side and the nasal retina from the opposite site, thus carrying all information from the same half of the visual field.
whaet is highlighted here?
optic chiasm
where do the paired optic tracts send most axons to synapse: in the XXX XXX XXX of the X?
what happens after this?
After travelling through the canal the nerve enters the middle cranial fossa. Each nerve meets to form the optic chiasm.
- Fibres from the medial aspect of the eye cross over to the opposite side and then continue on via the optic tracts.
- As a result the optic tracts contain fibres from the lateral (temporal) retina of the eye on the same side and the nasal retina from the opposite site, thus carrying all information from the same half of the visual field.
//
where do the paired optic tracts send most axons to synapse: in the lateral geniculate nucleus of the thalamus
Axons of the thalamic neurons project through the internal capsule to form the optic radiations, which project to the primary visual cortex in the occipital lobe, where conscious perception of visual images occurs.