Chapter 5 Flashcards

1
Q

Any decrease in a person’s alertness, difficulty with cognition, or behavior that departs from what is normal for that person constitutes _____________.

A

altered mental status

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2
Q

The brain represents only ____% of body weight.

A

2

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3
Q

The __________, which consists of the brain and spinal cord, accounts for 98% of all neural tissues of the body.

A

Central Nervous System

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4
Q

______ is a transparent, slightly yellowish fluid that acts as a shock absorber for the brain.

A

Cerebrospinal Fluid

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5
Q

The innermost meninx, which attaches directly to the brain’s surface, is a delicate membrane called the _________.

A

pia mater

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6
Q

The meshlike vascular network of this meninx resembles a cobweb, so it is known as the __________ membrane.

A

arachnoid

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7
Q

The outermost meninx, which lines the cranial vault, contains arteries that supply the bones of the skull, and it is called the ___________.

A

dura mater

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8
Q

The _________ space is between the dura mater and the skull.

A

epidural

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9
Q

The _________ space is between the dura and the subarachnoid membranes.

A

subdural

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10
Q

The brain can be divided into four main regions:

A

cerebrum
cerebellum
brainstem
diencephalon

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11
Q

The __________ comprises the cortex and the sub cortex.

A

cerebrum

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12
Q

The left hemisphere, called the ______ brain is also responsible for reading, writing, math, and sequential and analytical tasks.

A

logical

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13
Q

the right hemisphere, known as the ______ brain, interprets sensory information and processes, and spatial awareness.

A

creative

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14
Q

The __________ coordinates movements, balance and posture.

A

cerebellum

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15
Q

The ______ contains the thalamus and the hypothalamus

A

diencephalon

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16
Q

The tiny _______ is responsible for maintaining homeostasis in the body.

A

hypothalamus

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17
Q

The _____ controls basic physiologic functions such as breathing and heart rate.

A

medulla

18
Q

The _________ is involved in regulation of vision, hearing and body movement.

A

midbrain

19
Q

The ________ (meaning “bridge”) connects the cerebellum to the medulla and is also involved in posture and movement, as well as sleep.

A

pons

20
Q

Surrounding the thalamus, are the structures of the primitive brain, known collectively as the _________ system.

A

limbic

21
Q

_________ is an acute alteration in cognition characterized by waxing and waning impairment of awareness, orientation and cognition.

A

Delirium

22
Q

________ is sometimes confused with delirium but represents a chronic loss of brain function, particularly short term memory function.

A

Dementia

23
Q

_________, a transient loss of consciousness associated with decreased brain perfusion, has many possible causes.

A

Syncope

24
Q

Patients who report alterations in _______ (spacial orientation of one’s own body) and balance are usually able to give a history of such experiences.

A

proprioception

25
Q

Patients who have vertigo lasting longer than 24 hours, accompanied by a loss of balance and difficulty maintaining their posture, standing, and walking are often to found to have a ___________.

A

cerebellar infarction

26
Q

__________ vision changes (on the same side of the body as the headache) occur with temporal arteritis.

A

Ipsilateral

27
Q

_______ refers to a loss of muscular control and coordination causing truncal instability, gait unsteadiness, abnormal eye movements, or difficulty with precision of movements.

A

Ataxia

28
Q

A neurological insult that hinders speech, known as ________.

A

Expressive aphasia

29
Q

__________ levels should be checked in every patient with any change in mental status.

A

Blood Glucose

30
Q

A _______ is a blood clot o a cholesterol plaque that forms in an artery, occluding blood flow.

A

thrombus

31
Q

An ______ is a clot or plaque that forms elsewhere in the circulatory system, breaks off, and obstructs blood flow when it becomes lodged in a smaller artery.

A

embolus

32
Q

Ischemic stroke is much more _______ than hemorrhaging stroke.

A

common

33
Q

A ________ mimics a stroke, but the symptoms resolve within 24 hours.

A

TIA

34
Q

The _______ carotid arteries supply the brain with oxygenated blood.

A

internal

35
Q

Only ____% of patients with intracranial hemorrhage regain full functional independence.

A

20

36
Q

__________ hemorrhage should be suspected in any patient who describes a sudden, severe headache that came on like a thunderclap.

A

Subarachnoid

37
Q

ICP may cause _________; systolic hypertension, bradycardia, and irregular respiratory pattern

A

Cushing’s Triad

38
Q

______ is a general inflammation of the brain that causes focal or diffuse brain dysfunction.

A

Encephalitis

39
Q

The mortality rate for encephalitis is up to ____%.

A

77

40
Q

Acute deficiency of thiamine, or Vitamin B1, can cause a disorder known as ___________.

A

Wernicke’s Encephalopathy

41
Q

_______ can be classified as generalized or focal.

A

Seizures