Across
- 4. The simplest form of nervous activity that includes a sensory and motor nerve is called a
- 7. The ___________ system makes blood and oxygen available to body structures through breathing and the elimination of carbon dioxide
- 9. The part of the muscle that does not move and is attached closest to the skeleton is the
- 10. _________ tissue contracts and moves various parts of the body
- 12. The dense, active protoplasm found in the center of the cell is the
- 13. The system of nerves that that carries impulses , or messages to and from the central nervous system is called the __________ nervous system
- 15. The connection between 2 or more bones of the skeleton is called a
- 17. The ____________ system distributes blood throughout the body
- 19. Which nerve affects the muscles of the mouth
- 23. The largest artery in the human body is the
- 24. The _______ is the larger of 2 bones that form the leg below the knee
Down
- 1. Mitosis is the usual process of cell reproduction of human tissue that occurs when the cell divides into two identical cells called _________ cells
- 2. The endocrine glands also known as ___________ glands, release hormonal secretions directly into the bloodstream
- 3. The _____________ are the muscles that straighten the wrist, hand and fingers to form a straight line
- 5. Structures composed of specialized tissues designed to perform specific functions in plants and animals are known as
- 6. The muscle that covers the back of the neck and the upper and middle region of the back is the
- 8. ____________ tissue lines the heart, digestive and respiratory organs, and the glands
- 11. The basic unit of all living things, from bacteria to plants to animals, including human beings, are
- 14. The complex system that serves as a protective covering and helps regulate the body's temperature is the ____________ system
- 16. The oval bony case that protects the brain is the
- 18. The broad muscle that covers the top of the skull and consists of of the occipitalis and frontalis is the
- 20. The ________ is the watery fluid that surrounds the nucleus of the cell and is needed for growth, reproduction, and self repair
- 21. The ____________ cranial nerve is the chief motor nerve of the face
- 22. The study of the functions and activities performed by the body's structures is called ___________