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4.1 Joints and Motion
Terms in this set (28)
What role do joints play in the human body?
Joints help your bones move in the direction they are supposed to
How are joints classified by both structure and function?
Structural classification divides joints into fibrous, cartilaginous, and synovial joints
Functional classification divides joints into three categories: synarthroses, amphiarthroses, and diarthroses
What are the different types of synovial joints?
Pivot joint, ball-and-socket joint, saddle joint, condyloid joint, hinge joint, and plane (gliding) joint
What role do cartilage, tendons, and ligaments play at a joint?
Cartilage- keeps bones from rubbing against each other
Tendons- Connect muscle to bone
Ligaments- Connects one bone to another, forms joint
What terms describe the path of movement at a joint?
Adduction, abduction, flexion, inversion, rotation
What is range of motion?
Measurement of movement around a specific joint or body part.
How do you measure the range of motion of a particular joint movement?
How do bones, muscles and joints work together to enable movement and locomotion for the human body?
Bones need muscles to be able to move and muscles need to be able to move the bones in all different directions by joints
Movement of a limb away from the midline of the body
Movement towards the midline of the body
Joint; formed out of fibrous connective tissue and cartilage
A ball that moves in a socket to allow motion in every direction within certain limits; Hip Joint
Tough, elastic, fibrous connective tissue
Circular movement of a limb
Backwards flexion or bending
Straightening movement that increases the angle between body parts
bending movement around a joint in a limb that decreases the angle between the bones of the limb at the joint
Instrument used to measure angles
Convex surface of one bone fits into the concave surface of another. Back and forth movements; Elbows and knees
Typical cartilage containing little fibrous tissue
Allows the bones to move
Connects bones to other bones
Movement of the foot that flexes the foot or toes downward toward the sole
Range of motion
The extent of movement of a joint
Space between bones
Joint fluid; lubricant of joints
Joins bones with a fibrous joint capsule
Attaches muscle to bone
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