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Anatomy > Brain > Flashcards

Brain Flashcards

1
Q

Central sulcus of the brain is also called.

A

Sulcus of Rolando.

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2
Q

Lateral sulcus is also called.

A

Sylvian fissure.

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3
Q

Primary sensory area of the brain.

Sensory association area of the brain.

A

Area 3,1,2.

Area 5,7.

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4
Q

Pathway for crude sensations.

A

Dorsal root ganglion.

Dorsal horn cell (substantia gelatinosa).

Thalamus ( Ventroposterolateral nucleus ).

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5
Q

Pathway for fine sensations.

A

Dorsal root ganglion.

Nucleus gracilis/ cuneatus.

Thalamus ( ventroposterolateral nucleus ).

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6
Q

Primary visual area.

Visual association areas.

A

17.

18,19.

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7
Q

Damage to visual association areas leads to.

A

Visual agnosia ( Word blindness ).

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8
Q

Primary auditory area.

A

41, 42.

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9
Q

Auditory pathway.

A

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.

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10
Q

Area 22.

Damage leads to.

A 
Wernicke’s area.
Auditory agnosia ( word deafness ).
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11
Q

Broca’s area.

A

Area 44,45. Motor speech area.

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12
Q

What connects broca’s and wernicke’s area.

A

Arcuate fasciculus- connects area 22 and area 44,45. ( Frontal and temporal lobes ).

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13
Q

Primary motor area and function.

Pre-motor area and function.

A

Area 4 - Initiation of movement.

Area 6,8 - execution of movements.

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14
Q

Prefrontal areas and functions.

A

Area 9,10,11,12 - memory, intelligence, ego and self respect.
Personality of social behaviour is controlled by the pre-frontal areas.

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15
Q

Roof and floor of 3rd ventricle.

A

Roof - fornix.

Floor - optic chiasma/ pituitary stalk/ mamillary bodies.

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16
Q

Anterior wall and posterior wall of the 3rd ventricle.

A

Ant. Wall - anterior commisure/ lamina terminalis.

Posterior wall - posterior and habenular commisure/ pineal gland.

17
Q

Lateral wall of the 3rd ventricle.

A

Thalamus and hypothalamus.

18
Q

Relations of anterior horn of the lateral ventricle.

A

Floor - rostrum.

Anterior - genu.

Roof - trunk.

Medial - septum pellucidum and fornix.

19
Q

Relations of body of the lateral ventricle.

A

Roof - trunk.

Medial - septum pellucidum and fornix.

Floor - medial - thalamus/ lateral - caudate nucleus.

20
Q

Elevation in the floor of the posterior horn of the lateral ventricle.

A

Called calcar avis.

Formed by the calcarine sulcus.

21
Q

Elevation in the inferior horn of the lateral ventricle.

A

Called collateral eminence.

Formed by the collateral sulcus.

22
Q

Relations of the 4th ventricle.

A

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.

23
Q

Characteristics specific to trochlear nerve.

A

Only nerve which exits the brain stem on the dorsal side.
Thinnest cranial nerve.
Nerve which undergoes complete crossing in the brainstem.

24
Q

Examples of pregnant nerves.

A

Carries an artery within in.
Optic nerve - central artery of retina.
Sciatic nerve - branch of inferior gluteal.

25
Q

Nerve attached at junction of pons and middle cerebellar peduncle.

A

Trigeminal nerve.

26
Q

Medial most nerve attached to ponto-medullary junction.

Lateral most nerve attached to ponto-medullary junction.

A

Abducens.

Vestibulo-cochlear.

27
Q

White matter fibres in the brain types.

A

Commisural fibres.
Projectional fibres.
Association fibres.

28
Q

Parts of the internal capsule.

A 
Anterior limb.
Genu.
Posterior limb.
Retrolentiform part.
Sublentiform part.
29
Q

Ascending tracts in internal capsule.

A

AL - Thalamofrontal.
G and PL - Thalamoparietal.
RLP - Thalamooccipital.
SLP - Thalamotemporal.

30
Q

Descending tracts in the internal capsule.

A 
AL - Fronto pontine.
G - Corticonuclear
PL - Corticospinal.
RLP - occipitopontine.
SLP - Temporopontine.
31
Q

Anterior cerebral artery is present in which sulcus.

A

Callosal sulcus.

32
Q

Blood supply of Motor area/ sensory area.

A

MCA + ACA.

Anatomy (10 decks)

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