Joint Basics
What is a joint?
The place where two or more bones meet.
What type of joint is freely movable?
Synovial/Diarthrosis
What type of synovial joint is the most movable joint?
Ball and Socket
What movement means bending at a joint and decreasing the angle between two bones?
Flexion
The joint between the femur and acetabulum (hip) is what type of synovial joint?
Ball and Socket
What are the two main jobs of joints?
To allow movement and provide stability/support
What type of joint is immovable?
Fibrous/Synarthrosis
What type of synovial joint only allows bending and straightening
Hinge
What movement pulls a limb away from the body's midline?
Abduction
The joint between the tarsal bones is what type of synovial joint?
Plane/Gliding
Do humans have more joints or bones?
Joints
What type of joint has limited mobility?
Cartilaginous/Amphiarthrosis
What type of synovial joint allows rotation around a central axis?
Pivot
What movement rotates the palm so it faces downward?
Pronation
The joint between the atlas (C1) and axis (C2) is what type of synovial joint?
Pivot
What does the anatomical name of a joint tell you?
How the bones are connected/what type of structural connection the joint has.
The bones of the skull are connected by what type of joint?
Sutures
What type of synovial joint allows bones to slide against each other, such as the carpals?
Plane
What movement combines circular movement at a ball-and-socket joint, creating a cone-shaped motion?
Circumduction
The joint between the metacarpal of the thumb and the trapezium is what type of synovial joint?
Saddle
What does the physiological name of a joint tell you?
How much movement the joint allows
The pubic symphysis is an example of what type of joint based on its physiological classification?
Cartilaginous/Amphiarthrosis
What type of synovial joint is found at the base of the thumb and allows significant movement in multiple directions?
Saddle
What is the movement called when you rotate your foot where your pinky toe hits the ground first?
Inversion
The joint between the proximal phalanges and metacarpals is what type of synovial joint, and what is another common name for this joint?
Condyloid joint; the knuckle