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Anatomy term 1 > C Head injuries in the first hour > Flashcards

C Head injuries in the first hour Flashcards

1
Q

What is consciousness?

A

awareness of self and surroundings

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2
Q

What can rupture in a basal skull fracture? (2)

A

nasal bone

eardrum

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3
Q

What can lead out in a basal skull fracture?

A

CSF

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4
Q

Where is CSF found?

A

subarachnoid space

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5
Q

What is the retina innervated by?

A

Sensory - CN II

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6
Q

What is the sphincter pupillae innervated by?

A

Motor - CN III

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7
Q

What does the glasgow coma scale test?

A

consciousness

lowest = 3 - dead or coma

higheest 15 = fully awake

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8
Q

What is white matter?

A

bundle of axons

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9
Q

What does consciousness depend on? (2)

A
  1. cerebral cortex inetgrity

2. ascendng reticular atcivating system

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10
Q

What raised ICP affect?

A

cerebral perfusion pressure

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11
Q

What is the equation for cerebral perfusion pressure?

A

CEREBRAL PERFUSION PRESSURE = MAP - ICP

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12
Q

What accumulations of fluid, blood or tumours do to the pressure in the brain?

A

Increases it - Raised ICP

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13
Q

What does raised ICP affect? (look at equation)

A

Cerebral perfusion pressure

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14
Q

What effect does increase ICP have on Cerebral perfusion pressure?

A

decreases CPP

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15
Q

What is the middle meningeal artery a third branch of?

A

maxillary artery

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16
Q

How is the middle meningeal artery most commonly injured?

A

Extradural/epidural haematoma

17
Q

What is the treatment for extradural haematoma and is the bleeding venous or arterial?

A

Craniotomy - decompression of haematoma

Venous

18
Q

What is an extradural haematoma?

A

trauma causing build up build in dura mater

19
Q

What is often associated with rights died haemotoma?

A

pupillary constriction on RHS

20
Q

Which sided haemotoma is motor response worse?

A

left sided haemotoma

Anatomy term 1 (10 decks)

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