Across
- 2. hollow ball of cells formed during cleavage
- 4. wall of muscle that separates the thoracic and abdominal cavities
- 5. windpipe
- 6. blood cells responsible for forming blood clots
- 8. membrane that surrounds all other membranes and form the placenta
- 12. urea, water and dissolved mineral removed for the body
- 13. skeleton composed of the limbs and their associated girdles
- 17. embryonic stage of the first 7 weeks of development
- 18. gland that neutralizes the pH of the female reproductive tract
- 20. pertaining the the liver
- 21. male gonad
- 23. membrane that holds the small intestine in place
- 24. group of cells working together for a common function
Down
- 1. pumping chamber of the heart
- 3. red blood cells
- 6. involuntary movement of food through the digestive tract
- 7. tough connective tissue that connects bone to bone of a joint
- 9. inorganic nutrient such as calcium and iron
- 10. tissue that has the ability to conduct an electrical impulse
- 11. tube that connects the kidney to the urinary bladder
- 14. membrane that surrounds the heart helping to reduce friction
- 15. functional unit of the kidney
- 16. circulation between the heart and the body and back
- 19. pigment that protect skin for UV light
- 22. female gamete