JOINT CLASSIFICATION
These are the three structural categories used to classify joints in the human body.
What are fibrous, cartilaginous, and synovial joints?
This inner lining of the joint capsule produces the fluid that lubricates the bones.
What is the synovial membrane?
This smooth, rubbery tissue covers the ends of bones where they meet and helps reduce friction during movement.
What is cartilage?
Joints can also be grouped by how much movement they allow—these are the three functional classifications.
What are synarthrosis, amphiarthrosis, and diarthrosis?
This is a unique feature of synovial joints
joint cavity
Osteoarthritis, rheumatoid arthritis, and gouty arthritis all affect joints—but only one is caused by uric acid crystal buildup.
what is gouty arthritis?
The pubic symphysis and intervertebral discs are examples of this slightly movable joint type.
What is an amphiarthrosis?
These fluid-filled sacs reduce friction between tendons and bones, while these fibrocartilage pads cushion and stabilize joints like the knee.
What are bursae and menisci?
These tough, fibrous cords connect muscle to bone, while these connect bone to bone.
What are tendons and ligaments?
This type of joint is immovable; you’d find examples
What is a synarthrosis; between the bones of the skull.
When a muscle contracts, one bone remains fixed and the other moves. The fixed point is called the ______, and the movable point is the ______.
What are the origin and insertion?
The anterior cruciate ligament (ACL), posterior cruciate ligament (PCL), and patellar ligament are all found in this joint.
What is the knee joint?
This fibrous joint anchors a tooth to its socket, while this cartilaginous joint connects the two pubic bones with fibrocartilage.
What are a gomphosis and a symphysis?”
The shoulder, elbow, and thumb each represent different types of these joints. Name the six major types and give one example of each.
What are plane (carpals), hinge (elbow), pivot (neck), condyloid (wrist), saddle (thumb), and ball-and-socket (shoulder or hip) joints?
During a soccer season, an athlete first tears her anterior cruciate ligament (ACL) in the knee and later pulls her hamstring during rehab.
These two injuries both involve tissue tears but affect different structures.
In this condition, inflammation of a bursa (fluid filled sac) causes swelling, while in another, fusion of bones leads to stiffness and loss of movement.
What are a sprain and a strain?
What are bursitis and ankylosis?