Muscles
Across
- 3. the muscle on the back of the upper arm
- 11. a protein that converts chemical energy in the form of ATP to mechanical energy
- 12. a system of membrane-bound tubules that surrounds muscle fibrils
- 14. A dark thin protein band to which actin filaments are attached in a striated muscle fiber
- 17. plays an important role in signal transduction pathways,where they act as a second messenger, in neurotransmitter release from neurons, contraction of all muscle cell types
- 18. the tough tissue that cushions bones at their joints
- 20. the tissue that joins bones together at joints
- 22. a complex of three regulatory proteins that is integral to muscle contraction in skeletal muscle and cardiac muscle
Down
- 1. the large muscle in the upper arm that flexes the forearm
- 2. it is composed of thin filaments of actin and thick filaments of myosin
- 3. a two-stranded alpha-helical coiled coil protein found in cell cytoskeletons
- 4. the cell membrane of a striated muscle fiber cell
- 5. the contractile unit of a myofibril
- 6. a closed cavity containing synovial fluid
- 7. a globulin that is present in muscle plasma and that in connection with myosin plays an important role in muscle contraction
- 8. the bone in the forearm that's on the outside when you flex
- 9. the joint that allows bones to move on many planes
- 10. the joint where the bones can only move along one axis
- 13. A region of myosin molecules that extend from the surface of the thick filaments toward the thin filaments in a skeletal muscle
- 15. the bone in the forearm that's on the inside when you flex
- 16. the bone in the upper arm that goes from the shoulder to the elbow
- 19. the tissue that attaches muscle to bone
- 21. fiber the type of cell found in muscle tissue