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A215 Lecture > Articulations > Flashcards

Articulations Flashcards

1
Q

What are fibrous joints?

A

Dense regular CT
No joint cavity

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2
Q

What are cartilaginous joints?

A

Cartilage binds the bone
No joint cavity

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3
Q

What are synovial joints?

A

Ligaments support articulating bones
separated by joint cavity

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4
Q

What is synarthrosis?

A

immovable joint

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5
Q

What is amphiarthrosis?

A

Slightly moveable

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6
Q

What is diarthrosis?

A

freely moveable joints

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7
Q

What are the three main types of fibrous joints?

A

Suture
Syndesmosis
Gomphosis

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8
Q

What is a suture?

A

Synarthrosis joint
Coronal, Lambdoid, Sagital

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9
Q

What is a syndesmosis joint?

A

2 bones held together by interosseous ligamnets
Amphiarthrosis
b/w radius and ulna / tib and fib

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10
Q

What is a gomphosis joint?

A

The root of tooth and the jaw
Periodontal membranes
Synarthrosis

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11
Q

What is the articular capsule?

A

Surrounds bone ends

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12
Q

What is the synovial membrane?

A

Lines articular capsule
Makes synovial fluid

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13
Q

What is synovial fluid?

A

Lubricant for the joint

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14
Q

What is the joint cavity?

A

inside space of capsule

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15
Q

What is a plane synovial joint?

A

side-to-side movement
sliding against each other
carpals and tarsals

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16
Q

What is a hinge joint?

A

bending in only one plane
most common synovial joint
elbow, knee, PIP, DIP

17
Q

What is a pivot joint?

A

Permits rotational movement
atlas-axis articulation
moving head side to side

18
Q

What is a Conylar joint?

A

Biaxial movements
MP joints- knuckles when forming a fist
circumduction

19
Q

What is a saddle joint?

A

wide range of movement
1st metacarpal joint- base of thumb

20
Q

What is a ball and socket joint?

A

greatest range of motion
hip and shoulder joint
least stable

21
Q

Flexion?

A

decreases joint angle

22
Q

Dorsiflexion?

A

top of foot closer to the tibia

23
Q

Plantarflexion?

A

Foot and toes move closer to the posterior leg

A215 Lecture (10 decks)

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