Muscular Skeletal

4. Pivot joints allow ___ around a single axis. (ex-neck, forearm)
6. ___ connect bones to other bones.
8. Muscles work in pairs—when one contracts, the other ___. (e.g., biceps and triceps).
10. Skeletal muscles are ___ muscles, meaning they are under conscious control.
11. Hinge joints allow movement in ___ direction only (like the hinge of a door) — flexion and extension. (ex- elbow, knee, fingers, toes)
12. Ball-and-___ joints Allows movement in almost all directions — rotation, flexion, extension, abduction, and adduction. (ex – shoulder, hip)
13. The ___, or thigh bone, is the longest and strongest bone in the human body.
14. The ___ maximus is the largest muscle in the body and is responsible for hip movement.

1. The skull protects the brain and is made up of ___ bones.
2. The smallest bone is the ___ in the middle ear.
3. Cartilage is a flexible ___ tissue found in joints, rib cage, ears, nose, and between bones—especially in infants.
5. Condyloid, or ___ joints, allow movement but no rotation — flexion, extension, abduction, and adduction. (ex – wrist)
7. Tendons connect ___ to bones.
9. Joints are where two bones meet and are classified by ___: fixed, partially movable, and freely movable (synovial joints).
14. ___, or plane, joints allow sliding or gliding movements — limited movement in multiple directions. (ex-joints between small bones of wrist, ankle, vertebrae)
15. ___ joints allow movement in two directions — back-and-forth and side-to-side. (ex – thumb)