Human Body Systems Project

2. It is one of the largest and most complex organs in the human body.
3. Muscular tube that carries food and liquids from your mouth to your stomach.
5. Small bone located in front of the knee joint.
9. A specialized body fluid.
11. The portion of the digestive system most responsible for absorption of water from the indigestible residue of food (2 words).
14. Two reddish-brown-shaped organs.
17. An organ that is located in the abdomen.
18. The longest and strongest bone in your body.
19. Helps protect the organs in the chest.
20. An oval-shaped cavity inside the skull.

1. A pea-sized body attached to the base of the brain.
4. Constitutes the main tissue of the wall of the heart (2 words).
6. Longest segment off the gastrointestinal tract, and continuous pathway that food travels though your digestive system (2 words).
7. It serves as the entrance to the respiratory tract.
8. A long bundle of nerves and cells (2 words).
10. The outer of the two bones of the forearm.
12. Makes up the thick middle layer of the heart (2 words).
13. A muscular sac in the pelvis, just above and behind the pubic bone.
15. A muscular organ located on the left side of the upper abdomen.
16. A muscular organ about the size of a fist, located just behind and slightly left of the breastbone.