Muscles Part 1
Across
- 3. fine motor control
- 6. typically attach to projections on bone
- 7. can be stimulated to contract by chemical or electrical signals
- 8. connective tissue joining muscle to bone; usually rope-like
- 9. anchor muscle to bones or skin (or other muscles)
- 10. multiple insertions
- 13. is attached to tendons
- 16. connective tissue surrounding bundles of muscle fibers
- 18. moveable skeletal element/ onlimb: usually distal
- 19. tissue this tissue contributes to tendon and continues to mesh with periosteum and continues into bone
- 23. connective tissue surrounding each muscle fiber
- 25. can contract, generate tension (=pulling force)
- 26. connection between neuron and skeletal muscle fiber, muscle fiber recieves neurotransmitter(acetylcholine) from neuron to stimulate contraction
- 27. made of long cylindrical cells called myofibers, multinucleated and striated, attached to skeletal elements or skin, and generates conscious/voluntary actions
Down
- 1. greater strength
- 2. sheet-like tendon
- 4. gross motor control
- 5. stationary skeletal element; anchors muscle/ on limb: usually proximal
- 11. greater speed
- 12. located in the heart, pressurizes blood to circulate it, cells are branched and connected end to end, it is striated, regulated autonomically (involuntary)
- 14. unit all muscle fibers innervated by single neuron; contracts as unit
- 15. multiple origins
- 17. dense connective tissue surrounding muscle
- 20. returns to resting length after being stretched or contracting
- 21. innervated by somatic motor neurons
- 22. found in many organs, regulated autonomically(involuntary), cells are highly stretchable and resistant to fatigue, unstriated
- 23. can be stretched beyond resting length without being damaged
- 24. generates tension by a pulling force