Patho Flashcards

(53 cards)

1
Q

Neurotransmitters

A
Acetylcholine
Histamine
GABA
Oxytocin
Vasopressin
Monoamines: dopamine, seratonin, epinephrine, norepinephrine
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2
Q

Where is the “gate” located

A

Dorsal horn of the spinal cord

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3
Q

Transduction

A

activation of nociceptors - how it starts

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4
Q

Transmission

A

Conduction to dorsal horn and up spinal cord

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5
Q

Perception

A

Process of receiving information once it hits the brain

Sensory/discriminative system
motivational/affective system
cognitive evaluative system

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6
Q

Modulation

A

Adaptation to pain

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7
Q

Excitatory neuromodulation in CNS and PNS

A

Substance P
Glutamate
Somatostatin

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8
Q

Inhibitory neuromodulation

A
GABA
glycine
serotonin
norepinephrine
endorphine
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9
Q

What triggers neuromodulators?

A

endorphins

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10
Q

Perceptual dominance

A

Pain at one location may cause an ↑ in the threshold in another location

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11
Q

Acute somatic pain

A

Arises from connective tissue, muscle, bone, and skin

A delta fibers: pain is sharp and well localized
C Fibers: dull ache

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12
Q

Acute visceral pain

A

Pain in internal organs and abdomen

Poorly localized as a result of ↓ nociceptors

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13
Q

Referred pain

A

Pain that is present in an area removed from its point of origin

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14
Q

Neuropathic pain

A

result of trauma or disease of nerves
Most often chronic
Peripheral: painful diabetic neuropathy
Central: phantom limb

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15
Q

Major sleep center in the body?

A

Hypothalamus

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16
Q

How much time does a person spend in REM

A

20-25%

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17
Q

4 classifications of sleep disorders

A

Dyssomnias*
Parasomnias*
Secondary sleep disorders
Sleep provoked disorders

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18
Q

Parasomnias

A
Somnambulism (sleep walking)
Night terrors
Restless leg syndrome
Eating (sleep eating)
Violent behaviors
Assoc. with medical/psychiatric disorders
Proposed sleep disorder
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19
Q

Sleep provoked disorders

A

Sleep stage alterations produced in certain disease states

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20
Q

Dyssomnias

A

Insomnia
Obstructive sleep apnea
primary and secondary hypersomnia (excessive sleeping)
Disorders of sleep/wake cycle (jet lag)

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21
Q

Age related changes to sleep: Elderly

A

Total sleep is ↓
Take longer to fall asleep
Awaken more frequently
Amount of time in stave IV sleep is ↓

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22
Q

Age related changes to sleep: Young

A

Newborns sleep 16-17 hours/day
53% of that time is spent in REM sleep
infant sleep cycle is 50-60 min
Infants enter REM immed. upon falling asleep

23
Q

Osteoblasts

24
Q

Osteoclasts

25
Osteocytes
Bone cells
26
Collegen fibers
Make up bulk of bone matrix
27
Proteoglycans
Control transportation of ionized material through matrix Strengthen bone and assist bone calcium depletion
28
Glycoproteins
``` Promote calcification (bind to calcium) control collagen interactions leading to fibroid formation ```
29
Calcium
Give bones strength
30
What are bones made of
calcium | phosphate
31
Diaphysis
Main shaft of bone
32
Metaphysis
Flaired area between epiphysis and diaphysis - composed of cancellous bone
33
Epiphysis
Widened area at end of long bone
34
Medullary cavity
center of diaphysis and contains bone marrow (blood cells)
35
Endosteum
Thin layer lining medullary cavity
36
Basic multicellular units
osteocytes osteoblasts osteoclasts
37
Three phases of bone remodeling
Activation of the remodeling cycle Resorption Formation of new bone
38
Process of bone repair
``` Inflammation / hematoma formation procallus formation callus formation callus replacement remodeling ```
39
Term for remodeling cells
Basic multicellular unit
40
Synarthrosis
Immovable
41
Diarthrosis
Freely movable
42
Amphiarthrosis
Slightly movable
43
Fibrous joint
completely immovable Joints bone to bone suture, syndesmosis, gomphosis
44
Cartilaginous joint
not movable but stretchable Symphysis and synchondrosis
45
Synovial joint
uniaxial, biaxial, or multiaxial Joint capsule, synovial membrane, joint cavity, synovial fluid, articular cartilage Ex. elbow joint
46
Order of muscle layers
``` Single fiber Endomysium Fascicle Perimysium Bunches together Epimysium Fascia covers whole thing ```
47
What is a motor unit
Motor neuron | Muscle fibers
48
Sendory units
Spindles | Golgi tendon organs
49
Muscle Fibers
White muscle (type 2) - fast twitch - ocular muscles Red muscle (type 1) - slow twitch - calf muscle
50
Myofibrils
Functional unit of muscle contraction
51
Isometric contraction
When muscle maintains constant length as muscle is increased | Ex. hold coffee
52
Isotonic contraction
moving of a muscle Ex. bicep curl
53
Main fuel for muscle
ATP