Human body

3. Connects the brain and spinal cord; controls involuntary actions
4. Material found inside bones, responsible for blood cell formation
6. Soupy mixture of food, acid, and enzymes that is created in our stomach through mechanical and chemical digestion
8. involuntary muscle contractions that help push food down our esophagus to our stomach
10. Sends messages from the CNS to effectors to initiate a response
12. connects bone to bone
14. found in our lungs; responsible for increasing the surface area of our lungs so we can absorb more oxygen into our cells and get rid of carbon dioxide.
15. connects muscle to bone
16. Largest part of brain, divided into 2 hemispheres, 4 lobes; where we think and hold memories
18. Mass of chewed food

1. Muscle contracts we can bend part of our body and when an extensor muscle contracts we can straighten part of our body
2. sends messages from receptors to the CNS
5. Specialized cell of the nervous system with specific structures to carry messages
6. Brain and Spinal Cord
7. how urine exits the body
8. What comprises our Peripheral Nervous System
9. Helps absorb nutrients in the small intestine
11. part of the CNS and involved in decision making
13. Processes sensory information and helps us keep our balance
17. allows urine (waste) from the kidneys to travel to the bladder