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Anatomy for AAs > Lecture 1 COPY > Flashcards

Lecture 1 COPY Flashcards

1
Q

What does the brain float in?

A

cerebral spinal fluid

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2
Q

How much cerebral spinal fluid is made in a day?

A

500cc

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3
Q

How much CSF is there in total?

A

150cc

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4
Q

What makes CSF?

A

Choroid plexus

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5
Q

Where is excess CSF reabsorbed?

A

arachnoid granulations

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6
Q

Describe the flow of CSF.

A

-Made in the choroid plexus -through foramen of monroe -into the third ventricle -through the cerebral aqueduct -into the fourth ventricle -through 3 foramen (2 lateral: foramen of lueschka; 1 medial: foramen of magendie) -now in the cerebellar cistern -through foramen magnum -down spinal cord and back up to be reabsorbed

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7
Q

How does CSF get into the venous system?

A

Arachnoid granulations

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8
Q

What does the dura split in two to form?

A

superior sagittal sinus

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9
Q

What PADs the brain?

A

The meninges: Pia mater (inner most) Arachnoid mater (middle) (spider webs) Dura mater (outside)

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10
Q

If you break a bridging vein what could happen?

A

A subdural hematoma

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11
Q

What does stenosis mean? What would happen if you had stenosis in a foramen for the CSF?

A

stenosis is narrowing of something if you had narrowing in the foramen then it would cause a backup of CSF and built up pressure

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12
Q

What part of the dura mater separates the two hemispheres?

A

cerebral falx

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13
Q

What part of the dura separates the cerebellum?

A

the cerebellar tentorium

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14
Q

What is the Pterion?

A

The place were the 4 bones meet on side of head, weak spot.

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15
Q

What are the four lobes of the brain?

A

Occipital Parietal Temporal Frontal

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16
Q

What is the central sulcus?

A

between frontal and parietal lobes

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17
Q

What lobe is the primary motor cortex in?

A

Frontal

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18
Q

What lobe is the primary somato-sensory cortex in?

A

Parietal

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19
Q

T/F the right side of your brain controls the left side of your body

A

True

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20
Q

What is the cavernous sinus?

A

lateral to the sella turcica, houses passage for CN3,4,6,V1,V2

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21
Q

Label Veins

A

PPT 1 Slide 28

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22
Q

What is the danger triangle?

A

corner of lips to bridge of nose. do not get an infection here bc it can travel to the brain

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23
Q

What is Broca’s area?

A

LEFT SIDE broken language, form words/sentences

24
Q

What is wernicke’s area?

A

LEFT SIDE understanding language. can speak words but will be wordy

25
Q

Pyramidal or Lateral Corticospinal tract

A

motor tract

26
Q

Posterior Columns or Dorsal Columns tract

A

Vibration and position

27
Q

Anterolateral or Spinothalamic tract

A

pain and temperature and CRUDE touch

28
Q

What is the decussation point for the lateral corticospinal tract?

A

pyrimidal decussation in the medulla

29
Q

What is the decussation point for the posterior column tract?

A

internal arcuate fibers in the medulla

30
Q

What is the decussation point for the anterolateral tract?

A

Anterior commissure (spinal cord)

31
Q

Where does the lateral corticalspinal tract nerves synapse?

A

anterior horn (2 neurons, upper and lower)

32
Q

Where does the posterior column tract nerves synapse?

A

primary and secondary synapse at the gracile nucleus secondary and 3rd neuron synapse at the thalamus: VPL

33
Q

What is the VPL?

A

Ventral posterior lateral nucleus

34
Q

Where does the anterior lateral tract nerves synapse?

A

the primary neuron and secondary neuron synapse at the posterior horn the secondary and 3rd neuron synapse at the thalamus VPL

35
Q

Label the blood supply vessels to the brain

A

PPT 1 Slide 58

36
Q

Label the blood supply to the hemispheres of the brain

A

PPT 1 Slide 63

37
Q

What is a homunculus? What does it look like?

A

The two monkeys haning upside down. What parts of the brain correspond to the sensory or motor cortex

38
Q

Where is the primary auditory cortex?

A

in the sylvian fissure

39
Q

Identify the structure on the diagram with the stars

A

cerebellum

40
Q

Identify the structure with the star on the diagram

A

pons

41
Q

Identify the structure on the diagram

A

midbrain

42
Q

identify the structure on the brain

A

cerebrum

43
Q

what three parts make up the brainstem?

A
  1. midbrain
  2. pons
  3. medulla oblongata
44
Q

Identify the lobe on the diagram

A

parietal lobe

45
Q

Identify the lobe on the diagram

A

frontal lobe

46
Q

Identify the lobe on the diagram

A

temporal lobe

47
Q

Identify the lobe on the diagram

A

occipital

48
Q

Identify the structure with the star

A

central sulcus

49
Q

Identify the structure with the star

A

cavernous sinus

50
Q

Identify the structure with the star

A

superior sagittal sinus

51
Q

Identify the structure in the diagram

A

inferior petrosal sinus

52
Q

Identify the structure with the blue arrow.

A

Ophthalmic nerve (CN V1)

53
Q

Identify the structure with the arrow.

A

oculomotor nerve (CN III)

54
Q

Identify the structure with the arrow.

A

trochlear nerve (CN IV)

55
Q
A

Anatomy for AAs (9 decks)

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