MSK Flashcards

0
Q

What are the subtypes of fibrous joints?

A

Sutures
Gomphmoses
Syndesmoses

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1
Q

Define a joint

A

Defined point at which 2 or more bones make contact (articulate)
Classified by tissue type present

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2
Q

What are sutures

A

Synarthrosis
Between bones of skull
(Limited movement till age of 20)

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3
Q

What is Gomphmoses

A

Synarthrosis
Teeth articulate with socket via
Periodontal ligament (fibrous connection)

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4
Q

What is syndesmosis

A

Amphiarthrosis
Held by interosseus membrane

E.g. Middle radio-ulnar joint, middle tibiofibular joint

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5
Q

What are the subtypes of cartilaginous joints?

A

Synchondroses

Symphysis

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6
Q

What is a fibrous joint

A

Bones bound by fibrous tissue

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7
Q

What is a cartilaginous joint?

A

Bones attached by fibrocartilage or hyaline cartilage

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8
Q

What is a synchondrosis?

A

Only involves hyaline cartilage
Syn or amphiarthrosis

E.g. Between diaphysis and epiphysis of growing long bone

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9
Q

What is a symphysis?

A

Fibro or hyaline cartilage
Amphiarthrosis
E.g. Pubic symphysis

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10
Q

What is a synovial joint?

A
Joint filled with synovial fluid
Fully moveable (diarthroses)
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11
Q

What is diarthroses?

A

Fully moveable joint

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12
Q

What is Synarthrosis ?

A

Immoveable joint

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13
Q

What is amphiarthrosis?

A

Slightly moveable joint

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14
Q

What are the types of synovial joints?

A
Hinge
Saddle 
Plane
Pivot
Condyloid
Ball and socket
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15
Q

Example of hinge joint

A

Elbow joint

Permits Flexion and extension

16
Q

Example of a a saddle joint

A

Metatarsophalangeal joint

Concave and convex joint surfaces

17
Q

Example of plane synovial joint

A

Acromioclavicular joint

Permits gliding or sliding movements

18
Q

Example of pivot synovial joint

A

Proximal radio ulnar joint
Atlantoaxial joint

Allows rotation, round bony process fits into bony ligament out socket

19
Q

Example of a condyloid synovial joint

A

Metacarpophalangeal joint

Permits Flexion and extension
Pyramids abduction and adduction

20
Q

Example of a ball and socket joint

A

Glenohumeral joint

Permits movement in several axis
Rounded head fits into concavity

21
Q

What are the functions of synovial fluid found in synovial cavity of a joint?

A

Lubrication
Nutrient distribution
Shock absorption