Across
- 2. built-in rhythm of the heart
- 3. infection of bone tissue
- 5. organelle that serves as a common site of protein synthesis in neurons
- 7. fatal disease caused by a virus that reaches the CNS via fast axonal transport
- 9. vitamin D deficiency in adults
- 11. cancer affecting osteoblasts
- 13. degeneration of articular cartilage such that the bony ends touch
- 15. stores calcium ions in skeletal muscle fibers
- 20. disorder characterized by wasting away of muscles due to progressive loss of myofibrils
- 23. outermost protective covering among the cranial meninges
- 25. malignant tumor that consists of immature nerve cells
- 27. autoimmune disorder that targets acetylcholine receptors at the neuromuscular junction
- 28. term or condition characterized by a loss of muscle tone
- 29. enlargement of muscles
Down
- 1. disease that causes a progressive destruction of myelin sheaths surrounding neurons in the CNS
- 4. conduction in myelinated axons
- 6. type of nervous tissue that contains cell bodies, dendrites, unmyelinated axons, axon terminals, and neuroglial cells
- 8. protects the brain by preventing movement of harmful substances from the blood into the brain tissue
- 10. thread-like contractile organelles of a skeletal muscle fiber
- 12. type of tendon formed when the connective tissue elements of a skeletal muscle extend as a broad flat layer
- 14. vitamin D deficiency in children
- 16. fingerlike extensions of the arachnoid that reabsorb CSF
- 17. condition involving an increase in the diameter of muscle fibers
- 18. best-studied excitatory neurotransmitter
- 19. site of CSF production
- 21. innermost protective covering among the cranial meninges
- 22. functions as a motor protein in all three types of muscle tissue
- 24. reduced bone mass due to a decrease in the rate of bone synthesis
- 26. outermost layer of connective tissue surrounding a skeletal muscle