NR 304 (Health Assessment) - Exam 002 Chapter 22 GRADED and APPROVED (2023)

Joints or articulations correct answers Places of union of two or more bones Nonsynovial joints correct answers Bones united by fibrous tissue or cartilage ; can be immovable or slightly movable Why can synovial joints move freely correct answers Because bones separated and enclosed in joint cavity (Cavity filled with lubricant, or synovial fluid; synovial fluid allows sliding which permits movement) ex. sutures Bursa correct answers Enclosed sac filled with synovial fluid Flexion correct answers Bending a body part Extension correct answers Straightening a limb at a joint Abduction correct answers Moving a limb away from the midline of the body Adduction correct answers Moving a limb toward the midline of the body Pronation correct answers Turning the forearm so the palm is down Supination correct answers Turning the forearm so the palm is up Circumduction correct answers Moving the arm in a circle around the shoulder Inversion correct answers Moving the sole of the foot inward at the ankle Eversion correct answers Moving the sole of the foot outward at the ankle Rotation correct answers Moving the head around a central axis Protraction correct answers Moving a body part forward and parallel to the ground Retraction correct answers Moving a body part backward and parallel to the ground Elevation correct answers Raising a body part Depression correct answers Lowering a body part Temporomandibular joint (TMJ) correct answers Articulation of the mandible and the temporal bone (permits jaw function for speaking and chewing) 3 motions that the TMJ allows correct answers 1. Hinge action to open and close jaws 2. Gliding action for protrusion and retraction 3. Gliding for side-to-side movement of lower jaw