11.2 Muscle & movement Flashcards
State the role of ligaments in human movement
Connect bone to bone
State the role of nerves muscles and tendons in human movement
Nerves coordinate and stimulate muscle contraction. Muscles apply effort and force. Tendons connect muscle to bone.
Atlanta functions of the structures of the human elbow including radius humorous synovial capsule synovial fluid cartilage ulna
Radius: axes lever for bicep muscles
Ulna: acts of lever for tricep muscles
Radius: axes lever that allows Anchorage of muscles of the elbow
Joint capsule: surrounds joint, and closest synovial cavity, unites connecting bones
Synovial capsule: in case joint cavity,keeps food from escaping
Synovial fluid: provides lubrication and nutrients for joints
Cartilage: prevent bone from rotating together
Bicep: contracts to bring flexion bending of arm
Tricep: contracts to bring extension straightening of arm
State the role of bones in human movement
Act as levers and structural support
Compare [similarly and differences] the movements of the hip joint and the knee joint
Type of joint hip is ball and socket, knee is hinge. Range of movement fifth is 360 knee is plane. Bones involved: pelvis and femur, femur and tibia.
Similar:both able to move by flexion extension, both freely movable, humor is involving both
