1. Cell Types

2. Blood Cells RBC – Round, double concave – No nucleus – Able to alter shape (slightly) to move through capillaries

3. Muscle Cells Skeletal – Striations add strength – Linear Cardiac – Striations – ‘Y’ shaped (branched) Smooth – NO striations – Linear

5. Nerve Cell Sends and receives electrical signals

6. Epithelial Cells Lines and protects

7. Bone (Osteocyte) Form in rings – Circle shape withstands greatest amount of pressure Creates bone

8. Egg and Sperm Sperm – Small body with long tail Allows quick movement Egg – Large – Contains resources for growing fetus