1000ft view Joints

Question 1

What is another name for joints

Answer 1

articulations

Question 2

What is the purpose of joints

Answer 2

stabilizing or allow for mobility

Question 3

how are joints classified

Answer 3

by shape, degree of movement and involved connective tissue

Question 4

What are immovable joints

Answer 4

synarthosis

Question 5

what are joints with some movement

Answer 5

amphiarthrosis

Question 6

what are mobile joints

Answer 6

diarthrosis

Question 7

what is a synarthosis joints

Answer 7

immovable joints

Question 8

what are amipharthrotic joints

Answer 8

joints with some movement

Question 9

what are diarthrotic joints

Answer 9

mobile joints

Question 10

what are the connective tissue joint classifications

Answer 10

fibrous, cartilaginous, synovial

Question 11

what is a fibrous joint

Answer 11

direct connection of bone to bone via fibrous connective tissue - typically form synarthroses

Question 12

what are the types of fibrous joints

Answer 12

suture, syndesosis and gomphosis

Question 13

what is a suture

Answer 13

interlocking of flat bone with dense fibrous tissue

i.e. skull

Question 14

what is syndesmosis

Answer 14

ligaments attach permitting some movement

i.e. radius and ulna or tibia and fibula

Question 15

what is gomphosis

Answer 15

projection from one bone will fit into socket with stability gained from ligament

i.e. teeth

Question 16

What are cartilaginous joints

Answer 16

slightly mobile joint held together with cartilage

Question 17

what are the types of cartilagnious joints

Answer 17

symphyeses and synchondroses

Question 18

what is symphyese

Answer 18

cartilaginous joints connected via pad/disk of fibrocartilage allowing for shock absorber

i.e. spine/pubic symphysis

Question 19

What is synchondroses

Answer 19

bones connected via hyaline cartilage

i.e.ribs or growth plates in kids

Question 20

what are the types of cartilage

Answer 20

hyaline, fibrous and elastic cartilage

Question 21

what is hyaline cartilage

Answer 21

compressive viscoelastic behavior, shear at surface

Question 22

what is fibrous cartilage

Answer 22

compressive, tensile hoop, and shear stresses.

Question 23

what is elastic cartilage

Answer 23

highly elastic and durable - high cell density, elastin fibers

Question 24

what type of joints are synovial joints

Answer 24

diarthrosis

Question 25

what are diarthrosis joints

Answer 25

allow the greater mobility a type of synovial joints

Question 26

what is the joint capsule made of

Answer 26

dense, white fibrous tissue that is highly vascular

Question 27

how is the joint capsule attached

Answer 27

attached to the periosteum via Sharpey fibers

Question 28

what is the inner layer of the joint capsule

Answer 28

synovial membrane

Question 29

how is the synovial membrane attached

Answer 29

adheres to the nonarticular aspect of the bone

Question 30

what are the parts of the synovial membrane

Answer 30

outer aspects and inner aspect

Question 31

How do you describe the outer aspect of the synovial membrane and what does it contain

Answer 31

vascular, subintima layer that contains leukocytes, elastin and fibrous tissue

Question 32

what does the inner layer of the synovial membrane contain

Answer 32

synovial cells - type A (phagocytes) and type B (secrete hyaluroneate

Question 33

what is the inner layer of the synovial membrane also known as

Answer 33

the intima

Question 34

what is the intima

Answer 34

the inner layer of the synovial membrane

Question 35

what is the joint cavity

Answer 35

area within the joint capsule and synovial membrane in which articular bones are bathed in synovial fluid

Question 36

what is synovial fluid

Answer 36

highly filtrated plasma with bound hyaluronate that lubricates the joint

Question 37

what brings nutrients to the articular catilage of the bones

Answer 37

synovial fluid

Question 38

what does the synovial fluid contain

Answer 38

phagocytes

Question 39

what is articular cartilage made up of

Answer 39

cross-linked collagen fibers and chondrocytes and has a high water content

Question 40

what is the benefit of the articular cartilage

Answer 40

decreases joint friction and shares the forces put on the joint

Question 41

what pumps fluid into the cartilage and reabsorbes the synovial fluid

Answer 41

proteoglycans

Question 42

What are the zones of articular cartilage

Answer 42

superficial, transitional and deep

Question 43

what is the tidemark

Answer 43

area where bone and cartilage come together

Question 44

What does a condyloid joint allow for

Answer 44

similar to ball and socket but not as deep allows for flexion/extension, abduction/adduction and circumduction i.e. wrists and MCP joints