BackEXPANDED: Bones, Joints, and Muscles Flashcards
Terms in this set (29)
Collarbone; part of the pectoral girdle.
Shoulder blade; part of the pectoral girdle.
Thigh bone; longest bone in the body.
Bone-building cell responsible for forming new bone.
Bone-breaking-down cell that resorbs bone tissue.
Mature bone cell that maintains bone tissue.
Dense outer bone organized into osteons.
Porous bone made of thin bony struts called trabeculae.
Includes the skull, vertebral column, and thoracic cage.
Includes limb bones plus pectoral and pelvic girdles.
Ribs 1-7; connect directly to sternum via their own cartilage.
Ribs 8-12; no direct cartilage connection to sternum.
Ribs 11-12; no anterior attachment to sternum.
Fibrous joint anchoring a tooth in its socket.
Turning forearm so palm faces forward or upward.
Movement bringing the thumb across the palm toward fingers.
Contractile unit of muscle between two Z discs.
Thick filament in the sarcomere responsible for contraction.
Thin filament in the sarcomere that slides past myosin during contraction.
Sarcomeres shorten as thin filaments slide past thick filaments.
Muscle wasting often caused by disuse, immobilization, or nerve loss.
Connections between cardiac muscle cells allowing synchronized contraction.
Skeletal and cardiac muscles are striated.
Skeletal muscle is voluntary.
Membrane covering the outside of bone except joint surfaces.
Membrane lining the internal surfaces of bone.
Rough ridge on the posterior femur for muscle attachment.
A hole or opening through a bone.
A depression or hollow in a bone.