Extra Practice for Joint Types Flashcards
What are the two types of cartilaginous joints?
Synchondroses and symphyses
How do the cartilagenous joints differ in the type of cartilage that joins the bones and in the movement they give?
The synchondroses contain hyaline cartilage. (Syn=together chondro=cartilage) They are synarthrotic, meaning they have no movement. The symphyses contain fibrocartilage. They are amphiarthrotic, meaning they have limited movement.
What type of joint has a fluid-filled space between bones?
Synovial joint
What type of movement is possible with a synovial joint?
Free, unlimited movement in most cases. This is known as diarthrotic.
What are the four other characteristics of a synovial joint?
1) Large ligaments 2) Hyaline cartilage on surface of epiphyses called articular cartilage 3) Bursae, sacks of synovial fluid that cushion ligaments & tendons 4) In knee, contain fibrocartilage pads, or menisci
What do all fibrous joints have in them? What type of movement do they have? `
They all have tiny ligaments that attach the bones. They are called “fibrous” because ligaments are made of fibrous (dense) connective tissue. They are mostly synarthrotic (no movement).
What is a synostosis? Give some examples of joints that turn into this.
Synostoses (a “together bone”) are joints that begin as two (or more) bones but which fuse together into one bone. When growth plates are present in long bones, the bone is in three pieces (the two epiphyses are separate from the diaphysis). After puberty, the growth plates disappear (because they turn from cartilage to bone), causing the 3 pieces to fuse into one bone. This means growth plates are joints that turn into synostoses. Sutures also become synostoses because they disappear late in life, causing the skull bones to fuse together.
For the four major joint types, fill in the details
asked for.
TYPE
MAIN STRUCTURAL CHARACTERISTIC
TYPE OF MOVEMENT
MAJOR EXAMPLE
