Exam 3: Lecture 11 Flashcards

0
Q

What are the 3 classifications of joints?

A

Cartilaginous (amphiarthroses)
Fibrous (synarthroses)
Synovial (diarthroses)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

What is the definition of a joint?

A

Place where two bones come together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the characteristics of cartilaginous bone?

A

Bones joined by hyaline or fibrocartilage
Two type:
1) Symphysis
2) Synchondrosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are 2 examples of symphysis cartilaginous joints?

A

Joined by fibrocartilage

EX: Intervertebral discs & pubic symphysis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the characteristics of fibrous joints?

A
Bones joined by collagenous and/or elastic fibrous CT
Three types:
1) Suture
2) Syndesmosis
3) Gomphosis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are examples of suture fibrous joints?

A

Joints between bones of calvaria

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are examples of gomphosis fibrous joints?

A

“peg-in-socket” joint: teeth in alveoli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are examples of syndesmosis fibrous joints?

A

Bones joined by interosseous fibrous membrane

EX: Tibia/fibula & Ulna/radius

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are examples of synchondrosis cartilaginous joints?

A

Joined by hyaline cartilage

EX: Epiphyseal plates & first sternocostal joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the characteristics of synovial joints?

A

Moveable joints exemplified by connective tissue capsule surrounding fluid-filled space
Reinforced by thickenings of outer part of capsule referred to as ligaments
Ligaments stabilize joint/capsule and control/restrict direction and ROM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the 3 types of synovial joints?

A

Monaxial
Biaxial
Triaxial

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are monaxial synovial joints?

A

Allow movement in one plane

Hinge Joints: Humeroulnar/radioulnar joints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are biaxial synovial joints?

A

Allow movement in two planes
Condyloid joints: metacarpophalangeal/atlantoocciptial joints
Saddle joints: first carpometacarpal joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are triaxial synovial joints?

A

Allow movement in three planes

Ball-and-socket: glenohumeral/femoroacetabular joints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the 5 components of the synovial cavity?

A

1) Articular cartilage
2) Joint capsule
3) Synovial membrane
4) Synovial fluid
5) Synovial cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the articular cartilage of a synovial cavity composed of?

A

Hyaline cartilage
Lacks perichondrium
Not lined by synovial membrane

16
Q

What is the joint capsule of a synovial cavity composed of?

A

Vascularized dense CT
Lined by synovial membrane
Attached to edges of articular cartilage

17
Q

What is the synovial membrane of a synovial cavity composed of?

A

Highly vascularized (fenestrated capillaries)
1-3 layers of synovial cells
No basal lamina

18
Q

What is the synovial fluid of a synovial cavity composed of?

A
Contains mucin (hyaluronic acid-protein complex)
Produced by synovial cells
19
Q

What are the synovial cells types of a synovial cavity?

A

Type A: Macrophage-like

Type B: Fibroblast-like