Anatomy Flashcards
Where is the primary somatosensory cortex located
Post-central sulcus
Where is the primary motor cortex located
Pre-central sulcus
What does the lateral sulcus separate
Separates the temporal and parietal lobe and a little bit of the frontal lobe
Where is the primary auditory cortex located
Temporal lobe
Where is the transverse fissure located
Where the occipital lobe ends
What is the tentorium cerebelli
Invagination of the meningeal layer of the dura mater that separates the occipital and temporal lobes of the cerebral hemispheres from the cerebellum and brainstem
Where is the falx cerebri located
At the longitudinal fissure. Separating the right and left hemispheres
What is another name for the cerebrum
Telencephalon
Where is the primary visual cortex located
Occipital lobe
Is the cerebral cortex white or grey matter
Grey matter
Which direction do association fibres allow impulses
From front to back
Which direction do projection fibres allow impulses
Up and down
What is the role of the choroid plexus
Make and circulate CSF
What is the fornix
White fibre tract
Connects multiple limbic nuclei together
What is the role of the corpus callosum
Contains commissural fibres
Communication between the two cerebral hemispheres
What direction do commissural fibres transmit impulses
Left to right/Right to left
Allow communication between cerebral hemispheres
What do mamillary bodies play a role in
Olfactory pathways
Reflective memory
What is a another term for the midbrain
Mesencephalon
What is the embryonic term for the pons and cerebellum
Metencephalon
What is the embryonic term for the medulla oblongata
Myelencephalon
What are the three structures part of the diencephalon
Thalamus
Hypothalamus
Epithalamus (pineal gland)
Where can CSF drain after the 4th ventricle
Lateral apertures of Luschka (lateral)
Median aperture of Magendie (medial)
Central canal
What is the role of the superior colliculi
Response to visual stimuli
What is the role of the inferior colliculi
Response to auditory stimuli
What fibres does the cerebral peduncles contain
Projection fibres
What happens in the pyramids
Descending motor fibres decussate
Where do you find the choroid plexus
On the roof of the lateral ventricle, third and fourth
What is the septum pellucidum
Separates the anterior horns of the left and right ventricles
Name the three sections of the lateral ventricles
Anterior horn
Posterior horn
Inferior horn
Medial Rectus
Innervation and Movement
Oculomotor nerve (3)
Moves eye inwards and towards the nose (adduction)
Lateral Rectus
Innervation and Movement
Abducens nerve (6)
Moves eye outwards, away from the nose (abduction)
Superior Rectus
Innervation and Movement
Oculomotor nerve (3)
Primarily - moves the eye upwards (elevation)
Secondarily - rotates the eye to the top of the eye towards the nose (intorsion)
Tertiary - moves the eye inwards (adduction)
Inferior Rectus
Innervation and Movement
Oculomotor nerve (3)
Primarily - moves eye downwards (depression)
Secondarily - rotates the top of the eye away from the nose (extorsion)
Tertiary - moves the eye inwards (adduction)
Superior oblique
Innervation and Movement
Trochlear nerve (4)
Primarily - rotates the top of the eye towards the nose (intorsion)
Secondarily - moves the eye downwards (depression)
Tertiary - moves the eye outwards (abduction)
Inferior oblique
Innervation and Movement
Oculomotor nerve (3)
Primarily - rotates the top of the eye from the nose (extortion)
Secondarily - moves the eye upwards (elevation)
Tertiary - moves the eye outwards (abduction)
