A&P 1 - Exam 2 Flashcards
1
Q
What are the different types of joints? (structurally)
A
Fibrous
Cartilaginous
Synovial
2
Q
What is synarthroses?
A
Immovable joint
3
Q
What is amphiarthroses?
A
Slightly movable joint
4
Q
What is a diarthroses joint?
A
Freely movable joint
5
Q
What is the general features of fibrous joints?
A
- Joined by fibrous tissue with no joint cavity
- Adjacent bones are linked by collagen fibers that emerge from one bone
- Most are synarthrotic (no movement)
6
Q
What are the types of fibrous joints?
A
- Sutures
- Syndesmoses
- Gomphoses
7
Q
What are sutures?
A
- They are fibrous joints
- Short connective tissue fibers
- Hold skull bones together
- Synarthrotic
8
Q
What are syndesmoses?
A
- Fibrous joints
- Bones connected by cord (ligament) or sheet (interosessous membrane) of fibrous tissue
- Synarthrotic (no movement)
9
Q
What are gomphoses?
A
- Peg-in-socket fibrous joint
- Periodontal ligament holds teeth in socket
10
Q
What are the different types of cartilaginous joints?
A
- Synchondroses
- Symphysis
11
Q
What are the general features of cartilaginous joints?
A
Two bones are linked by cartilage
12
Q
What are synchondroses joints?
A
- Cartilaginous joint
- Plate of hyaline cartilage between bones
- Examples: epiphyseal plates, first rib to sternum
13
Q
What are symphysis joints?
A
- Cartilaginous joint
- Articular (hyaline cartilage) on surfaces
- Acts as a shock absorbant/compressible
- Amphiarthrotic (slightly movable)
- Intervertebral joints and pubic symphisis.
14
Q
Synovial joint features?
A
- Two bones are covered by articular cartilage (layer of hyaline cartilage)
- Separated by articular cavity containing synovial fluid to lubricate free surfaces and reduce friction
- Joint capsule encloses cavity and retains the fluid. Has outer fibrous capsule and inner synovial membrane that remove debris.
15
Q
What are menisci?
A
- known as “articular discs”
- Fibrocarilage discs that separate synovial cavity into two cavities for more stability
- Examples include knee, jaw, etc.
