"Vertebrate Anatomy - Shannon Niel": HTML5 Crossword

Across

2. Route from the mouth to the stomach (9)
5. Referring to the rear of the body (9)
7. Metabolic organ that processes toxic substances (5)
9. Melanin forming cells in the skin (11)
11. Organ that filters blood and regulates bodily fluids (6)
15. Referring to the front of the body (8)
17. Very thin tissue covering the outside surface of the body (9)
18. The space inside of tubular organs (5)
19. Part of the larynx that houses the vocal cords (7)

Down

1. Outer skin layer on a fetus that disappears before birth (11)
3. Cartilage cells (12)
4. Mechanism in the throat that prevents food from entering the windpipe (10)
5. The chamber behind the mouth that connects the nasal chamber to the throat (7)
6. Organ that stores bile (11)
8. Hair-like parts that increase the surface area of a structure (5)
10. Bone cells (10)
12. Gland that secretes digestive enzymes into the beginning of the small intestines (8)
13. The very beginning of the small intestine, where it meets the stomach (8)
14. Hard, flexible tissue; alternative to bone (9)
16. Bodily fluid that emulsifies fats and helps with digestion (4)