Chapter 9: Skeletal System: Articulations Flashcards Preview

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Flashcards in Chapter 9: Skeletal System: Articulations Deck (132)
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31

bone with rounded surface fits into a ring formed by a ligament and another bone

pivot joint
i.e. atlantoaxial joint

32

oval articular surface on one bone closely interfaces with a depressed oval surface on another bone

condylar joint
i.e. MP (metacarpophalangeal or metatarsophalangeal) joints

33

saddle-shaped articular surface on one bone closely interfaces with a saddle shaped surface on another bone

saddle joint
i.e. articulation between carpal and first metacarpal bone

34

round head of one bone rests within cup-shaped depression in another bone

ball and socket joint
i.e. glenohumeral (shoulder) joint, hip joint

35

Gomphosis classification.

fibrous
synthrosis
immobile

36

Suture classification.

fibrous
synarthrosis
immobile

37

Syndemosis classification.

fibrous
amphiarthrosis
slightly mobile

38

Synchondrosis classification.

cartilaginous
synarthrosis
immobile

39

Symphysis classification

cartilaginous
amphriarthrosis
slightly mobile

40

Uniaxial classification.
Plane
Hinge
Pivot

synovial
diarthrosis
freely mobile

41

Biaxial classification.
Condylar
Saddle

Synovial
Diarthrosis
freely mobile

42

Multiaxial (Triaxial)
Ball and Socket

Synovial
Diarthrosis
freely mobile

43

The most stable joint

suture

44

The most unstable joint

glenohumeral

45

A ____ resembles a "peg in a socket".

gomphosis

46

The only _____ in the human body are the articulations of the roots of individual teeth with the alveolar processes (sockets) of the mandible and the maxillae.

gomphoses

47

A tooth is held firmly in place by fibrous _____ membranes.

periodontal membranes

48

____ have distinct, interlocking, usually irregular edges that both increase their strength and decrease the number of fractures at these articulations.

sutures

49

Sutures permit the skull to ___ as the brain increases in size during childhood.

grow

50

In an older adult, the suture becomes _____, fusing the skull bones together.

ossified

51

When the bones have completely fused across the suture line, these obliterated sutures become _____.

synostoses

52

The shafts of the two articulating bones are bound by a broad ligamentous sheet called an ______.

interosseous membrane

53

The interosseous membrane provides a ____ where the radius and ulna (or the tibia and fibula) can move against one another.

pivot

54

The cartilage found between the articulating bones is either ____ or _____.

hyaline cartilage or fibrocartilage

55

The hyaline cartilage of epiphyseal plates in children forms ____ that bind the epiphyses and diaphysis of long bones.

synchondroses

56

When the hyaline cartilage stops growing, bone replaces the _____ and a sychondrosis no longer exists.

cartilage

57

The ____ synchondrosis found between the body of the sphenoid and the basilar part of the occipital bone.

spheno-occipital

58

The spheno-occipital synchodrosis typically fuses between ____ of age, making it a useful tool for assessing the age of the skull.

18 to 25 years of age

59

the joint between each bony rib and its respective costal cartilage, is a synchondrosis

costochondral joint

60

In pregnant females, the pubic symphysis becomes more mobile to allow the pelvis to ____ slightly as the fetus passes through the birth canal.

change shape