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Anatomy 3 > lecture 6 > Flashcards

lecture 6 Flashcards

1
Q

The Telencephalon: forms the cerebral hemispheres in adults and it contain

A

The cortex
The white matter
The basal nuclei
The lateral ventricles

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2
Q

is a deep sulcus, located in the midline and separates the right and left cerebral hemispheres

A

Longitudinal Cerebral Fissure

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3
Q

in the depths of the fissure is the _______ that connects the hemispheres across the midline.

A

Corpus Callosum

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4
Q

is the sulcus that separates the cerebral hemispheres from the cerebellum inferior, it contains the Tentorium Cerebelli

A

The Transverse Cerebral Fissure

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5
Q

is convex and is boundary superiorly by the superior border and inferiorly by the inferolateral border

A

The superolateral surface

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6
Q

is flat and vertical and is separated from the superolateral surface by the superior border, inferiorly it continues with the basal or inferior surface.

A

The Medial surface

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7
Q

is separated from the superolateral surface by the inferior border

A

The basal surface

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8
Q

is a sharp border situated near de midline that separates the superolateral surface from the medial surface

A

The superior or superomedial border

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9
Q

is a round border that separated the superolateral surface from the basal surface.

A

inferior or inferolateral border

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10
Q

it runs downward and forward across the superolateral surface.

A

Central Sulcus

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11
Q

is a deep cleft situated on the inferior and lateral surfaces of the cerebral hemispheres. It separates the frontal and parietal lobes above from the temporal lobe below.

A

Lateral Sulcus (Sylvius)

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12
Q

occupies the area anterior to the central sulcus and superior to the lateral sulcus.

A

Frontal Lobe

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13
Q

The inferior frontal gyrus is composed of three parts:

A

the pars orbitalis (anteriorly),
the pars triangularis (middle) and the
pars opercularis (posteriorly)

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14
Q

The pars opercularis of the inferior frontal gyrus in the dominant hemisphere often includes the motor speech area commonly known as

A

Broca’s area

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15
Q

which is the largest commissure of the brain, forms a striking feature on this surface

A

The corpus callosum

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16
Q

begins beneath the anterior end of the corpus callosum and continues above the corpus callosum until it reaches its posterior end

A

The Cingulate gyrus

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17
Q

The large area lateral to the olfactory sulcus is called

A

orbital gyri

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18
Q

The inferior surface of the frontal lobe possesses the

A

olfactory sulcus

19
Q

The area between the olfactory sulcus and the cerebral longitudinal fissure is known as the

A

straight gyrus or gyrus rectus.

20
Q

is the area that surrounds the indentation of the central sulcus on the superior border. It is bounded anteriorly by the paracentral ramus and posteriorly by the marginal ramus of the cingulate sulcus

A

Paracentral lobule

21
Q

is an area bound anteriorly by the marginal ramus of the cingulate sulcus and posteriorly by the parieto-occipital sulcus.

A

Precuneus

22
Q

is situated on the inferior surface of the hemispheres. it runs from posterior to anterior parallel to the calcarine sulcus.

A

The Collateral sulcus:

23
Q

is a triangular area bounded above by the parieto-occipital sulcus, inferiorly by the calcarine sulcus and posteriorly by the superior medial margin or border.

A

Cuneus

24
Q

lies between the collateral and calcarine sulci, anteriorly it continuous with the Parahippocampal gyrus that ends as the uncus.

A

Lingual gyrus

25
Q

The inferior parietal lobe: lies inferior to the intraparietal sulcus. The inferior parietal lobe is comprised of two gyri

A

supramarginal gyrus, angular gyrus

26
Q

runs parallel to the collateral sulcus.

A

occipitotemporal sulcus

27
Q

extends from the occipital pole to the temporal pole, lies between the collateral and occipitotemporal sulci.

A

The medial occipitotemporal gyrus

28
Q

lies lateral to the occipitotemporal sulcus, which is continuous, rounds the infero-lateral margin of the hemispheres with the inferior temporal gyrus.

A

lateral occipitotemporal gyrus

29
Q

it receives this name because some fibers of the internal capsule pass through and give then the striped appearance

A

corpus striatum or striated body

30
Q

is situated lateral to the thalamus and is divided by the internal capsule into the

A

caudate nucleus and the lentiform nucleus.

31
Q

a large C-shaped mass of gray matter that arches superiorly over the thalamus and lies between the lateral ventricle medially and the internal capsule laterally

A

caudate nucleus (tail-like)

32
Q

is a wedge-shaped mass of gray matter whose broad convex base is directed laterally and its blade medially

A

lentiform nucleus:

33
Q

is situated in the temporal lobe close to the uncus on the tip of the tail of the caudate nucleus. It has olfactory function.

A

amygdaloid nucleus or amygdala

Putamen

34
Q

lentiform nucleus is divided into:

A

Globus Pallidus ,

35
Q

is a thin sheet of gray matter that is separated from the lateral surface of the lentiform nucleus by the external capsule and from the Insula lobe by the extreme capsule.

A

Claustrum nucleus

36
Q

White matter of the cerebral hemispheres, fibers may be classified into three groups according to their connections

A

The commissural fibers.
The association fibers.
The projection fibers.

37
Q

These fibers run between the two hemispheres specifically they interconnect the same gray areas of the right and left hemispheres

A

commissural fibers

38
Q

connects the right and left amygdalas, the olfactory bulbs, and several cortical regions of the two temporal lobes

A

anterior commissure:

39
Q

connects the right and left pretectal region and related cell groups of the mesencephalon

A

posterior commissure

40
Q

joins the right and left hippocampi to one another

A

fornix

41
Q

connect different part of the same hemisphere. It is divide into short and long groups.

A

association fibers

42
Q

it lies immediately beneath the cortex and connect neighboring or adjacent cortical areas or gyri.

A

short association fibers

43
Q

connect widely separated cortical lobes

A

long association fibers

Anatomy 3 (23 decks)

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