Across
- 3. structures that respond to mechanical forces (touch and pressure)
- 8. thin myofilament
- 9. subdivision of the ANS that works to increase neural activity
- 12. division of the skeletal system consisting of the skull, rib cage, and vertebral column
- 14. specialized cells that is the functional unit of the nervous system
- 15. Nerves that connect the rest of the body to the central nervous system
- 16. division of the skeletal system consisting of arms, legs, and pelvic girdle
- 19. protein based molecule that carries oxygen into the muscles
- 20. contractile components of a muscle cell
- 21. connective tissue that surrounds muscles and bones
Down
- 1. ______ plate; specialized cartilage disc located in the epiphysis
- 2. movement of a limb that is visible
- 4. smallest blood vessels and the site of exchange of elements between blood and tissues
- 5. high-energy molecule that serves as the main form of energy
- 6. division of the nervous system that includes the brain and spinal cord
- 7. _____unit; motor neuron and all of the muscle fibers
- 10. small gap between motor neuron and muscle cells
- 11. condition of reduced bone mineral density
- 13. thick myofilament
- 17. body's ability to naturally sense its general orientation and position of its parts
- 18. collective component and structures that work together to move the body
- 22. neurotransmitter that helps the action potential cross the synapse