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Anatomy 101 > Bones, Joints, Muscles > Flashcards

Bones, Joints, Muscles Flashcards

1
Q

What is the function of long bones

A

Movement and support

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2
Q

What is the function of short bones

A

Stability/support

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3
Q

What is the function of flat bones

A

Protect internal organs and spot for muscle attachment

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4
Q

What is the function of irregular bones

A

Protect internal organs, movement, and support

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5
Q

What is the function of sesamoid bones

A

Protect tendons from force

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6
Q

Maxillary bones

A

Are fused to form upper jaw and central facial skeleton

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7
Q

Which ribs are true ribs

A

1-7 because they attach directly to the sternum

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8
Q

What ribs are false ribs

A

8-10 because they attach to cartilage

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9
Q

What ribs are floating ribs

A

11-12 because they have no attachment

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10
Q

What is the sarcomere

A

Basic unit of muscle fibers

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11
Q

What is the sarcomere responsible for

A

Muscle contraction

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12
Q

What does the sarcomere do

A

Gives skeletal and cardiac muscle it’s striated appearance

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13
Q

What is the sarcomere made up of

A

Thick and thin filaments (myosin and actin)

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14
Q

What is an isotonic muscle contraction

A

Movement

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15
Q

What is an isometric muscle contraction

A

No movement

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16
Q

Concentric contraction

A

Muscle shortens

17
Q

Eccentric muscle contraction

A

Muscle lengthens

18
Q

What is bursae

A

synovial fluid sacs that acts as a cushion between joints for smoother movement

19
Q

What are ivd’s

A

Soft cushiony structures between vertebrae in spine

20
Q

What are the functions of ivd’s

A

Shock absorption and spinal flexibility

21
Q

Parts of ivd’s

A

Nucleus puposus : gel center
Annulus fibrosus: out stable layer

22
Q

Where is SR found

A

Found in muscle cells

23
Q

Sr stores calcium when

A

Muscles are at rest

24
Q

Sr releases calcium when

A

Muscles are contracting

25
Q

What is the role of calcium in sr

A

Triggers the interaction of actin + myosin during muscle contraction

26
Q

After contract sr does

A

Pumps calcium back into storage

27
Q

What is arthritis

A

Inflation of joints causing swelling, stiffness, and reduced movement

28
Q

What is the cause of osteoarthritis

A

Wear and tear of joint cartilage over time

29
Q

What is the cause of rheumatoid arthritis

A

An auto immune disease that attacks joint lining

30
Q

What is the cause of gout

A

Buildup of uric acid crystals

31
Q

Psoriatic arthritis is associated with

32
Q

What is rigor mortis

A

Post mortem stiffening

33
Q

The first stage of rigor mortis is

A

Onset : 2-6 hours after death

34
Q

Rigor mortis fully develops when

A

12 hours after death

35
Q

Resolution of rigor mortis is when

A

Body returns to relaxed state

36
Q

Rigor mortis is caused by

A

The stop of atp production after death

Anatomy 101 (7 decks)

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