Synovial Joints

Question 1

What are some things that synovial joints have that cartilaginous or fibrous joints don’t have?

Answer 1

a present joint cavity and the bones aren’t directly connected to each other

Question 2

What odes the bones not being directly connected help with?

Answer 2

Helps with moving smoothly and increasing joint mobility

Question 3

Articular Capsule Definition

Answer 3

A fibrous connective tissue structure that is attached to each bone just outside the area of the bone’s articulating surface

Question 4

Articular Cartilage Definition

Answer 4

a thin layer if hyaline cartilage that covers the entire articulating surface of each bone

Question 5

Synovial Membrane Definition

Answer 5

lining of the inner surface of the articular capsule

Question 6

Synovial Fluid Definition

Answer 6

thick, slimy fluid that provide lunrication to reduce friction between bones in a joint

Question 7

What does synovial fluid provideand what to?

Answer 7

nourishment to the articular cartilage

Question 8

What are synovial joints classified as?

Answer 8

Diarthrotic

Question 9

Ligament definition

Answer 9

strong bands of fibrous connective tissue anchoring bones together to prevent seperation

Question 10

Extrinsic Ligament Location

Answer 10

located outside the articular capsule

Question 11

Intrinsic Ligament Location

Answer 11

fused to the wall of the articular capsule

Question 12

Intracapsular Ligament Location

Answer 12

located inside the articular capsule

Question 13

Tendon Definition

Answer 13

dense connective tissue structure that attatches a muscle to bone

Question 14

Articular disc definition and shape

Answer 14

Acts as a barrier to provide smooth movement between articulating bones ; generally small and oval-like

Question 15

Meniscus shape

Answer 15

larger than articular disc and c-shaped

Question 16

Examples of articular discs

Answer 16

sternoclavicular joint and distal ends of the radius and ulna

Question 17

Bursa definition

Answer 17

a thin connective tissue sac filled with lubricating liquid

Question 18

Subcutaneous Bursa shape and examples

Answer 18

located between the skin and undelying bone ; prepatellar bursa over kneecap and olecranon bursa at tip of elbow

Question 19

Submusclar bursa location and examples

Answer 19

found between muscle and underlying or adjacent bones ; trochanteric bursa found at laterla hip

Question 20

Subtendinous bursa location and examples

Answer 20

found between tendon and bone ; subacromial bursa protecting tendon of shoulder muscle to the under acromion of the scapula

Question 21

Tendon Sheath Definition

Answer 21

a connective tissue sac that surrounds a muscke tendon at places where the tendon crosses a joint

Question 22

what are the 6 types of synovial joints?

Answer 22

pivot, hinge, ball-and-socket, condyloid, saddle, and plane

Question 23

PIvot joint definition and examples

Answer 23

a uniaxial joint that is a rounded portion of a bone enclosed within a rig formed partially by the articulation with another bone and partially a ligament ; examples are the atlas and axis of the vertebrae

Question 24

Hinge joint definition and examples

Answer 24

the cortex end of one bone articulates with the concave end of the adjoining bone that is classified as a uniaxial joint ; examples are knee, ankle, and interphalangeal joints

Question 25

Condyloid Joint definition and examples

Answer 25

a shallow depression at the end of one bone articulates witha rounded structure from an adjacent bone that is classified as a biaxial joint ; examples are metcarpophalangeal joints

Question 26

Saddle joint examples and definition

Answer 26

an articulating surface for the bones to have a saddle shape classified as a biaxial joint ; examples are base of the thumb

Question 27

Plane Joint definition and examples

Answer 27

articulating surfaces of the bones are flat or slightly curveeed and of approximately the same size classified as mulitaxial joint ; examples are carpal bones of the wrist

Question 28

Ball-and-Socket Joint defintion and examples

Answer 28

a rounded head of one bone fits into the concave articulation of another allowing it to be a multiaxial joint ; examples are the jip and shoulder joint