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Neurology > Cerebrum > Flashcards

Cerebrum Flashcards

1
Q

Structures that protect cerebrum

A

CSF
Meninges
Skull

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2
Q

Name of source of energy of brain

A

Glucose

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3
Q

Between genius and normal person, who has bigger brain

A

Neither , same size for everbody

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4
Q

What differentiate a genius brain from a normal person

A

Number of synapses

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5
Q

Superfical Structure that seperates right form left part of cerebrum

A

Longitudinal fissure

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6
Q

Internal structure that allow communication between right and left halves of cerebrum

A

Corpus callosum

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7
Q

Why is corpus callosum white

A

Because many myelinated axons

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8
Q

What could happen if corpus callosum not able to allow communication between halves of brain

A

Autism

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9
Q

Bump on surface of brain

A

Gyri

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10
Q

Groove on surface of brain

A

Sulci

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11
Q

Fissure that seperates frontal lobe from parietal lobe

A

Central sulcus

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12
Q

Name of gyri around central sulcus

A

Pre central gyrus

Post central gyrus

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13
Q

Function of precentral gyrus

A

Primary Motor cortex

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14
Q

Name of map in the pre central gyrus

A

Motor homunculus

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15
Q

Fissure that seperates occipital lobe from cerebellum

A

Transverse fisssure

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16
Q

Fissure that seperates frontal and parietal lobes from temporal lobes

A

Sylvian/lateral fissure

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17
Q

3 functional divisions of brain

A

Motor areas
Sensory areas
Higher function areas

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18
Q

Most prominent sulcus of brain

A

Central sulcus

19
Q

Cortices found in central sulcus

A

Primary motor cortex

Primary somatosensory cortex

20
Q

2 divisions of limbic system

A

Limbic cortex

Deep limbic structures

21
Q

What forms limbic cortex

A

Cerebral sulci of the frontal, temporal, parietal

Cerebral gyri of the frontal , temporal, parietal

22
Q

Structures of deep limbic structures

A 
Hippocampal formation 
Amygdala 
Diencephalon 
Olfactory cortex 
Basal ganglia
Basal part of cerebrum and brainstem
23
Q

Function of limbic system

A

Control emotions, olfaction, homeostatis

24
Q

Function of hippocampal formation

A

Long term memory

Spatial navigation

25
Q

Function of amygdala

A

Response to fear

26
Q

Structure that seperates cerebrum into left and right hemispheres

A

Medial longitudinal fissure

27
Q

Frontal lobe function

A

Motor control and planning , concentration, language , rational and executive control

28
Q

Precentral gyrus functionm

A

Brodmann area 4 or

Primary motor cortex

29
Q

Lobe that contains Primary sensory cortex

A

Parietal lobe

30
Q

Primary auditory cortex located in …

A

Superior temporal gyrus

31
Q

What does the brocas area control

A

Motor component of speech production

32
Q

Postcentral gyrus function

A

Somatosensory cortex responsible for touch, body position and movement sensing and

33
Q

What is wernickes area

A

Functional unit of cerebral cortex involved in comprehension of spoken language

34
Q

Cortex blood supply

A

Cortical branches of anterior, middle cerebral from internal carotid artery

cortical branch of posterior cerebral arteries from basilar artery

35
Q

Parietal lobe function

A

Integrate proprioceptive and mechanoceptive stimuli
Language processing
Primary somatosensory cortex
Somatosensory association cortex

36
Q

Occipital lobe function

A

Primary visual cortex

Center for visual procesing

37
Q

Temporal lobe function

A

Decode sensory input for retenion of visual memory
Primary auditory cortex
Wernickes area

38
Q

Insular cortex function

A

Processing and integration of taste sensation
Visceral and pain sensation
Vestibular functions

39
Q

What does homunculus means

A

Little man

40
Q

On the motor cortical homunculus , what part of the body is the most medial and the most latera

A

Most medial - genitals and then lower limbs part

Most lateral - head part

41
Q

What determines the amount of space a body part takes on the motor control homunculus

A

Proprotional to intricacy of motor function

42
Q

What is the direction of body part on the motor cortical homunculus

A

Genitals -> toes -> ankle -> knees -> hip -> trunk -> shoulder -> elbow -> wrist -> hand and fingers with thumb largest area -> forehead -> brows -> eyes -> nose-> lips being largest of face -> chin -> tongue -> pharynx

43
Q

What is the logic behind size of body parts represented on sensory cortical homunculus

A

Amount of cortex per body part is proportional to complexity of sensation received from an organ

44
Q

Is area of genitals larger for sensory or motor cortical homunlucus ?

A

Sensory as more complex sensory information

Neurology (31 decks)

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