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Anatomy > 7)Joints MCQ Only In Midterm > Flashcards

7)Joints MCQ Only In Midterm Flashcards

1
Q

Degree of mobility for fibrous joints

A

Immovable/ synarthrodial joints (MCQ)

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2
Q

Degree of mobility for cartilaginous joints

A

partially movable/ amphiarthrodial joint (MCQ)

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3
Q

Degree of mobility for synovial joints

A

Freely movable/ diarthrodial joints (MCQ)

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4
Q

What are the two classification for joints

A

Structural features& degree of mobility

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5
Q

***Structural features of joints (always ask in exam) diagram

A

refer to notes (joints) page 3

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6
Q

4 types of fibrous joints

A

Sutures
schindylesis
syndesmosis
gomphosis

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7
Q

Fibrous joints are found between where?

A

between 2 bones of intra-membranous origin

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8
Q

Comparison between primary cartilaginous joint and secondary cartilaginous joint

A

primary cartilaginous joint Secondary cartilaginous joint
(eg. intervertebral joint)

Bones are connected by Bones are covered by hyaline
hyaline cartilage cartilage and connected by
fibrocartilage

immovable slightly movable

disappear with age do not disappear with age

Rarely occurs in midline Always occurs in midline

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9
Q

5 types of sutures

A

1) Squamous sutures
2) Sutura limbosa
3) Serrated sutures
4) Denticulate suture
5) Plan suture

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10
Q

Sutures

A

Found only between the bones of the skull

foetal skull (胎儿头骨) the suture are wide apart to allow slight degree of movement between skull bones during the passage through the birth canal

after birth suture become quit rigid over period of time, allowing no more movement at articulating bones (关节骨)

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11
Q

Squamous suture

A

articulating bones simply overlap obliquely

location: temporal& parietal bones

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12
Q

Sutura limbosa

A

overlapping edges (重叠的边缘) are ridged or serrated (锯齿状)

location: temporal& parietal bones

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13
Q

Location of serrated sutures

A

sagittal suture

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14
Q

Denticulate suture

A

Margins present a tooth-like processes

location: lambdoid suture

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15
Q

Plane suture

A

two flat surfaces are in contact

eg- palatine processes of the maxilla

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16
Q

Schindylesis

A

tongue& groove type of joint

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17
Q

Syndesmosis

A

partially movable fibrous joint

persist throughout life

united by inter-osseous membrane

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18
Q

Gomphosis

A

peg& socket articulation

location: between roots of the teeth
alveolar process of jaw bones

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19
Q

What does periodontal ligament (PDL) do

A

Anchor the tooth securely in socket

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20
Q

Synovial joint ** (IMPORTANT for exam) diagram

A

Joints page16

21
Q

Three type of joints

A

Fibrous joint
Cartilaginous joint
Synovial joints

22
Q

5 characteristic features of synovial joints

A
  1. The articular surface
  2. Joint cavity
  3. Capsular ligament
  4. Synovial membrane
  5. Disc
23
Q

The articular surface

A

opposite of bone are cover by hyaline cartilage

avascular& alymphatic

24
Q

Joint cavity

A

Space that always exist between the articular surfaces of the opposing bones

25
Capsular ligament
completely enclose joint cavity run in all direction to resist torsion& twisting some are thickened to form ligament of joint, usually strong ligament are at the side of joint
26
Synovial membrane
Secret oily fluid- Synovium not line in articular surface lines the inner surface of joints and part of the bone within the joint
27
Disc allow which 2 types of joints to move
Temporo-mandibular joint& knee joint
28
Where anterior fontanelle form? (MCQ)
frontal and parietal
29
Most commonly dislocated joint in body (MCQ)
Shoulder (adults) Pulled elbow (children)
30
Inflammation of one or more joints is called? (MCQ)
Arthritis
31
Definition of dislocation of joint (exam)
End of the bones gets out of its socket
32
Hinge also known as? (MCQ)
Ginglymus joint
33
Disc function
ensure perfect contact between moving surface in any direction helps to maintain perfect lubrication
34
Classification of synovial joint (According to the number of articulating surfaces)
simple- only one pair of articulating surface eg. joints of fingers compound- more than one pair of articulating surface eg. elbow joint complex- partially or completely divided by disc or menicus eg. knee joint, temporo-mandibular joint
35
Classification of synovial joint (According to the number of axes)
1) Uniaxial joint- axis may be vertical or horizontal one degree of freedom eg. pivot joint (vertical axis) , hinge joint (horizontal axis) 2) BI-axial joints- 2 axes which are at mutual right angles 2 degrees of freedom eg. saddle joint, ellipsoidal joint 3) Multi-axial joints- 3 degrees of freedom Axes in all planes Eg. ball& socket joint
36
Classification of synovial joint (According to the shape of articulating surfaces)
1) Plane joints 2) Hinge/ Ginglymus joint 3) Pivot joints 4) Ellipsoidal joints 5) Saddle joints 6) Ball& socket joint 7) Condyloid joint
37
***Factor that maintain the stability of synovial joints (Exam)
1) Muscle- maintaining the stability 2) Ligament- prevent over movement 3) Bones- maintaining the stability in firm type of joints
38
Plane joint
uni-axial with 1 degree of freedom Opposing surface is almost flat permit gliding or sliding movement eg. intercarpal joints
39
Hinge (ginglymus joint)
Uniaxial with 1 degree of freedom Opposing surface is slightly convex and other slightly concave permits flexion& extension eg. elbow joint, interphalangeal joints
40
Pivot joint
Uniaxial with 1 degree of freedom Opposing bone is encircled at the joint end by fibrous ring or cuff, enable the bone to rotate Allow medial rotation& lateral rotation Allow side to side movement in atlanto-axial Eg. radio-ulnar joint
41
Ellipsoidal joint
Bi-axial with 2 degree of freedom resembles ball& socket joint, but the articulating surfaces are longer in one direction than the other Allow flexion, extension, adduction& abduction Eg. wrist joint
42
Saddle joint
opposing surfaces are reciprocally curved in a saddle shape Bi-axial joint and allow movement in 2 planes Allow flexion, extension, adduction& abduction Eg. Carpo-metacarpal joint of the thumb
43
Ball and socket joint
Opposing surface is ball shaped and others is reciprocal socket multiaxial with 3 degree of freedom allow movement in all planes Allow flexion& extension; adduction& abduction; Rotation& circumduction Eg. shoulder joint& hip joint
44
Condyloid joint
modified hinge (one direction ) joint Eg. knee joint
45
Term of joint disorder
Arthropathy
46
A small telescope
Arthroscopy
47
Gout is caused by what
too much uric acid in the blood Mainly involve in joints or foot
48
Comparison between Osteoarthritis and Rheumatoid arthritis
Osteoarthritis Rheumatoid arthritis Nature of Degenerative and Degenerative and autoimmune disease inflammatory Tissue Articular cartilage Synovial membrane affected Joints Weight bearing, e.g. Small joints of affected hip, knee, joints of cervical hands and feet and lumbar spine regeneration is not possible because of avascular

Anatomy (12 decks)

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