Joint types- anatomy and physiology

Question 1

define a joint

Answer 1

the point at which 2 or more bones meet allowing movement

Question 2

describe a fixed/immovable joint

Answer 2

-fibrous joints where no movement is possible
-between the flat bones of the cranium

Question 3

describe a slightly movable joint

Answer 3

-provide a small range of movement
-joined by cartilage and ligament

Question 4

describe a freely movable/synovial joint

Answer 4

-provide a large range of movement
-ball and socket - hinge joints
-most joints are synovial
-knee, shoulder, hip, elbow, ankle

Question 5

list all the components of a synovial joint

Answer 5

-synovial membrane

-synovial fluid

-joint capsule

-ligaments

-cartilage

-tendons

Question 6

what is the function of synovial membrane?

Answer 6

-lines the inside of a joint capsule
-surrounds the joint capsule with synovial fluid

Question 7

what is the function of synovial fluid

Answer 7

-a lubricant that reduces friction
-reduces wear and tear

Question 8

what is the function of a joint capsule

Answer 8

-surrounds and protects the joint
-helps hold the bones together

Question 9

what is the function of ligaments

Answer 9

-strong elastic fibers
-connect bones and hold them together

Question 10

what is the function of cartilage

Answer 10

-strong flexible material
-found at the ends of bones
-coushions the bones

Question 11

what is the function of tendons

Answer 11

-tough fibrous tissue
-connects muscle to bone

Question 12

describe a hinge joint

Answer 12

-more stable less prone to injury
-allows flexion and extension (movement in one direction)

Question 13

describe ball and socket joints

Answer 13

-less stable more prone to injury
-allows all types of movement (provides a large range of movement)