Articulations/joints Flashcards

1
Q

condyle

A

large, round articulating surface or knob

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2
Q

facet

A

smooth, flat surface for articulation

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3
Q

head

A

rounded articulation at the end of a bone

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4
Q

articulations

A

location at which 2 bones make contact that allow movement and provide mechanical support

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5
Q

periosteum

A

covers all bones until the joint

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6
Q

fibrous

A

covers the bones at the joint

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7
Q

synovial membrane

A

secrets synovial fluid into the joint

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8
Q

synovial fluid

A

is a thick(egg-like) consistency, stringy liquid. nutrient exchange for cartilage. reduces friction. shock absorbsion

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9
Q

synarthorosis

A

fibrous joint. non-moveable. ie. skull sutures, gomphosis(teeth)

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10
Q

fibrous joint

A

no synovial joint cavity

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11
Q

amphiarthrosis

A

slightly moveable, syndesmosis, fibrocartilaginous

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12
Q

synovial joint

A

it has a synovial cavity

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13
Q

diarthrosis

A

moveable, gliding joint, hinge joint, pivot joint, condyloid joint, saddle joint, ball and socket joint

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14
Q

gliding joint

A

uniaxial, z-joint inter-carpal. planar

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15
Q

hinge joint

A

uniaxial, a concave surface glides around a convex surface allowing for flexion/extension. ginglymus

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16
Q

pivot joint

A

uniaxial, rotation around a vertical or long axis is allowed. trochoid

17
Q

condyloid joint

A

biaxial; oval articular surface with an elliptical cavity to permit flexion/extension, abduction/adduction, and circumduction but not axial rotation. ellipsoidal

18
Q

saddle joint

A

biaxial; both joints have saddle shaped surfaces fitted to each other allowing for F/E Ab/Ad, circumduction. joint of the thumb

19
Q

ball andsocket joint

A

poly-axial spheroid ball and sockets allow for all the moves and rotation along its axis. shoulder/hip joints. spheroid

20
Q

Types of bones

A

Long bones Short bones Flat bones Irregular bones Sesamoid bones

21
Q

Long bones

A

Found in extremities, consists of body or shaft, is cylindrical with central cavity, curved

22
Q

Short bones

A

Mainly wrist or ankle, cube-ish shape

23
Q

Flat bones

A

Broad flat plats, 2 layers of compact tissue enclosing variable quantity of cancellous tissue

24
Q

Irregular bones

A

Have complex shapes cannot be classified

25
Q

Sesamoid bones

A

Floating bones that develop in high friction areas around a joint

26
Q

Cortical

A

The hard outer shell of bone

27
Q

Cancellous

A

The spongy inside of a bone

28
Q

Bursa

A

a fluid filled sac to reduce friction between two moving surfaces

29
Q

Hyaline

A

the most common type of cartilage

30
Q

elastic

A

found in the ear, larynx, nose, trachea

31
Q

Fibrocartilage

A

found in areas of high stress