Brain Flashcards
Central sulcus of the brain is also called.
Sulcus of Rolando.
Lateral sulcus is also called.
Sylvian fissure.
Primary sensory area of the brain.
Sensory association area of the brain.
Area 3,1,2.
Area 5,7.
Pathway for crude sensations.
Dorsal root ganglion.
Dorsal horn cell (substantia gelatinosa).
Thalamus ( Ventroposterolateral nucleus ).
Pathway for fine sensations.
Dorsal root ganglion.
Nucleus gracilis/ cuneatus.
Thalamus ( ventroposterolateral nucleus ).
Primary visual area.
Visual association areas.
17.
18,19.
Damage to visual association areas leads to.
Visual agnosia ( Word blindness ).
Primary auditory area.
41, 42.
Auditory pathway.
Organ of Corti.
Dorsal and ventral cochlear nucleus.
Superior Olivary nucleus.
Trapezoid body.
Lateral lemniscus.
Inferior colliculus.
Medial geniculate body.
Auditory radiation.
Area 41, 42.
Area 22.
Damage leads to.
Wernicke’s area. Auditory agnosia ( word deafness ).
Broca’s area.
Area 44,45. Motor speech area.
What connects broca’s and wernicke’s area.
Arcuate fasciculus- connects area 22 and area 44,45. ( Frontal and temporal lobes ).
Primary motor area and function.
Pre-motor area and function.
Area 4 - Initiation of movement.
Area 6,8 - execution of movements.
Prefrontal areas and functions.
Area 9,10,11,12 - memory, intelligence, ego and self respect.
Personality of social behaviour is controlled by the pre-frontal areas.
Roof and floor of 3rd ventricle.
Roof - fornix.
Floor - optic chiasma/ pituitary stalk/ mamillary bodies.
Anterior wall and posterior wall of the 3rd ventricle.
Ant. Wall - anterior commisure/ lamina terminalis.
Posterior wall - posterior and habenular commisure/ pineal gland.
Lateral wall of the 3rd ventricle.
Thalamus and hypothalamus.
Relations of anterior horn of the lateral ventricle.
Floor - rostrum.
Anterior - genu.
Roof - trunk.
Medial - septum pellucidum and fornix.
Relations of body of the lateral ventricle.
Roof - trunk.
Medial - septum pellucidum and fornix.
Floor - medial - thalamus/ lateral - caudate nucleus.
Elevation in the floor of the posterior horn of the lateral ventricle.
Called calcar avis.
Formed by the calcarine sulcus.
Elevation in the inferior horn of the lateral ventricle.
Called collateral eminence.
Formed by the collateral sulcus.
Relations of the 4th ventricle.
Roof - cerebellum.
Floor - lower 1/2 of pons and upper half of medulla. Facial colliculus formed as the facial nerve winds around the nucleus of the abducens nerve.
Hypoglossal triangle - formed by the hypoglossal nucleus.
Vagal triangle - formed by the vagal nucleus.
Characteristics specific to trochlear nerve.
Only nerve which exits the brain stem on the dorsal side.
Thinnest cranial nerve.
Nerve which undergoes complete crossing in the brainstem.
Examples of pregnant nerves.
Carries an artery within in.
Optic nerve - central artery of retina.
Sciatic nerve - branch of inferior gluteal.
Nerve attached at junction of pons and middle cerebellar peduncle.
Trigeminal nerve.
Medial most nerve attached to ponto-medullary junction.
Lateral most nerve attached to ponto-medullary junction.
Abducens.
Vestibulo-cochlear.
White matter fibres in the brain types.
Commisural fibres.
Projectional fibres.
Association fibres.
Parts of the internal capsule.
Anterior limb. Genu. Posterior limb. Retrolentiform part. Sublentiform part.
Ascending tracts in internal capsule.
AL - Thalamofrontal.
G and PL - Thalamoparietal.
RLP - Thalamooccipital.
SLP - Thalamotemporal.
Descending tracts in the internal capsule.
AL - Fronto pontine. G - Corticonuclear PL - Corticospinal. RLP - occipitopontine. SLP - Temporopontine.
Anterior cerebral artery is present in which sulcus.
Callosal sulcus.
Blood supply of Motor area/ sensory area.
MCA + ACA.
