Across
- 1. Small, finger-like projections on the surface of the small intestine that absorb nutrients where they diffuse into the blood stream
- 3. An organ next to the liver that produces digestives juices. The juices are sent to the small intestine via the pancreatic duct and break down fats, carbohydrates, and proteins.
- 5. A word that means to break food down into smaller molecules
- 8. The number of stomach chambers a bird has
- 9. A greenish substance produced by the liver and stored in the gallbladder that is used in the small intestine to break down fats
- 10. Tendons and ligaments are examples of _____ connective tissue because they are composed of tightly packed protein fibers
- 13. This cushy material is found in the ears and nose and in between certain joints to add cushion, like the knee cap and in between the vertebral discs
- 15. The largest artery in the body that takes blood from the left ventricle to the rest of the body
- 16. A type of digestive system that has one opening for food and waste. This is found in the jellyfish and flatworms (2 words).
- 17. An animal that is not able to control its internal body temperature using its own metabolic reactions (name means “outside temperature”)
- 18. Multiple layers of epithelial cells is called _______ epithelia
- 19. Vertebrates have a thick integument with two main layers. One upper, thinner layer called the epidermis, and a thick layer below called the _______
- 20. The extracellular matrix of blood, which is mainly fluid
- 22. This chamber of the heart receives deoxygenated blood from the body through the Vena Cava (two words)
- 23. The four types of tissues are epithelial, muscle, nervous and _______
- 26. The organ that secretes digestive enzymes in order to break down proteins. It is connected to the esophagus.
- 28. A type of protein fiber found in the extracellular matrix of several types of connective tissue. It is strong and flexible, but resistant to stretching
Down
- 1. Animals like insects, crabs and molluscs (clams, snails) have an open circulatory system, which means their blood is not enclosed in blood ________ (plural)
- 2. Your trachea, bronchi, bronchioles and lungs are a part of which organ system?
- 3. The _____ vein carries oxygenated blood from the lungs back to the heart
- 4. A process by which living organisms constantly adjust to internal and external changes to maintain a steady state in their body
- 6. This organ system is your outer covering and acts as a protective barrier for your body
- 7. The part of the neuron that receives impulses from other neurons and sends the impulse to the cell body
- 11. This type of muscle tissue is found in the heart and is controlled involuntarily
- 12. A muscular organ under your lungs that makes breathing more efficient
- 14. Some animals have a _____ skeleton where they use body fluids or water to support their body and help them move rather than a rigid skeleton like we have
- 21. _____respiration is breathing through the skin, where oxygen diffuses across skin cells which then diffuse into capillaries under the skin, so it can be delivered to the rest of the body.
- 23. Tall, narrow-shaped epithelial cells are called ______
- 24. Groups of similar cells working together for a specific function (plural)
- 25. The part of your circulatory system that pumps the blood
- 27. The grape-like structures in your lungs where gas exchange occurs