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