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Human Anatomy 3.1
Axial Skeleton
| Question | Answer |
|---|---|
| What covers the epiphysis? | Articular cartilage. |
| What is the hollow space in diaphysis? | Medullary cavity. |
| What is the bone building cell that secretes matrix? | Osteoblasts. |
| What lines the medullary cavity? | Edosteum. |
| What covers the diaphysis? | Periosteum. |
| What bone stem cells differentiate into other cells? | Osteoprogenitor cells. |
| What ossification occurs when cartilage is replaced by bone? | Endochondral. |
| Compact bone has what 7 structures? | Lamellae, central canal, perforating canal, lacunae, canaliculi, centric rings, interstitial lamellae. |
| Spongy bone has what 2 things? and is found in... | Trabeculae, red bone marrow, found in epiohysis. |
| What cell is a mature bone? | Osteocytes. |
| 5 bone types | Short, flat, long, sesamoid, irregular. |
| Abundant extra cellular matric is __% water, __% collagen, and __% mineral salts. | 15%, 30%, 55%. |
| What is ossification and what age does the process complete? | Bone formation, age 25. |
| What grows bone and what eats bone? | Osteoblasts grow, Osteoclasts eat. |
| What cell remodels bones and releases calcium? | Osteoclasts. |
| Bone is made up of 5 things... | Bone tissue, cartilage, dense connective tissue, adipose tissue, and nervous tissue. |
| When periosteum osteoblasts add new bone tissue in diameter this is called? | Appositional growth. |
| What ossification occurs when a connective tissue membrane is replaced by bone? | Intramembranous. |