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week 14
| Question | Answer |
|---|---|
| Cell differentiation | the process by which unspecialized cells become specialized in structure and function. |
| What are the four basic tissue types in the human body? | Epithelial, connective, muscle, and nervous tissue. |
| What distinguishes epithelial tissue from connective tissue structurally and functionally? | Epithelial tissue has closely packed cells with little extracellular matrix, lines surfaces and cavities; connective tissue has fewer cells dispersed in abundant ECM and supports or connects other tissues. |
| “___ is the process by which a zygote’s cells become progressively more specialized in structure and function.” | Cell differentiation |
| “The type of tissue that lines the inside of the digestive tract and forms body surfaces is ___ tissue.” | epithelial |
| Osteocyte | a mature bone cell that maintains bone matrix. |
| Ligament | band of fibrous connective tissue that connects bones to other bones at joints. |
| Name the three types of bone cells and describe their functions. | Osteoblasts (form new bone), osteocytes (maintain bone matrix), osteoclasts (resorb/break down bone). |
| Why is cartilage important at certain joints (before bone fully develops)? | Cartilage provides a flexible, smooth surface for movement and growth; in developing bones it serves as a template that is gradually ossified. |
| Bone-forming cells that secrete new bone matrix are called ___.” | osteoblasts |
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