Neuroanatomy workshops Flashcards
Through which foramina does the internal carotid artery gain access to the intracranial space?
Carotid canal
Through which foramina do the vertebral arteries gain access to the intracranial space?
Foramen magnum
Which foramen does the middle meningeal artery pass through?
Foramen spinosum
What might a fracture near the temporal region (pterion) cause?
Tearing of the middle meningeal artery leading to an epidural haemorrhage.
Between which meningeal layers is the Circle of Willis found?
Between the Pia and arachnoid layers
Where are aneurysms common?
At branch points, e.g. in Circle of Willis
If an aneurysm of one of the arteries of the Circle of Willis ruptures, into which space will blood leak?
Sub-arachnoid space
What would damage to the anterior cerebral artery cause?
Lower leg motor and somatosensory deficits
What would damage to the middle cerebral artery cause?
Head and upper body motor and somatosensory deficits
Brocas speech area also
What would damage to the posterior cerebral artery cause?
Damage to visual cortex and bilateral homonymous hemianopia
What does Nissl stain for?
Cell bodies
What does Silver stain for?
Neurons
What lies between the two halves of the thalamic complex?
3rd ventricle (filled with CSF)
Which structure is the thalamus continuous with anterior-inferiorly?
Hypothalamus
What are the two subdivisions of the lentiform nucleus?
Globus pallidus
Putamen
