Across
- 2. It is formed by smooth muscle fibers with involuntary movement
- 5. They form the heart
- 6. They are groups of cells that form glands and secrete subtances
Down
- 1. Formed by specialized cells that receive stimuli from the environment
- 3. Formed by flat cells, which are specialized in receiving stimuli
- 4. Formed by skeletal muscular fibers that cover the bones