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25 Cards in this Set
- Front
- Back
- Babies are born with
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~350 bones. That gradually shrinks down to 206.
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- Cartilage is considered part of
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the skeleton
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- Three types of cartilage in the skeletal system:
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Hyaline, Elastic, and Fibro.
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Functions of the Skeleton
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1.Support. // 2.Movement // 3.Protection // 4.Hematopoiesis – blood cell production // 5.Mineral (particularly calcium phosphates) storage.
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Hyaline –
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Found in four main areas: Articular cartilage, coastal cartilage, nasal cartilage, and respiratory cartilage (tracheal cartilage, bronchiole cartilage, and larnnyx)
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Elastic –
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Most flexible cartilage, has the biggest percentage of elastic fibers.Is found in the ear and the epiglottis
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Fibro cartilage – .
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Very tough and strong, hard to tear. Dense on the outside, squishy on the inside. Found in: intervertebral discs, menisci, and pubic sympysis.
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Sinus –
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Space within our bone that lightens the skull and resonates our voice. Lines with mucous membranes to fight respiratory infection
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Cervical –
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Curvature that develops when the child can hold its head up
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Thoracic –
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Curvature that develops when the child can sit up. Over-curvature is referred to as “lordosis”
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Lumber –
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Curvature that develops when a child can walk. Over-curvature is referred to as “kyphosis”
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Intervertebral discs - .
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Made of collagen fibers (annulus fibrousus) on the outside, Nucleus pulposus on the inside.
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Nucleus pulposus – .
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A glycoprotein that makes of the inside of intervertebral discs. Draws water to it through osmotic pressure.
osten that the ostecytes |
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Proximal epiphysis –
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The end of the bone closest to the trunk of the body.
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Distal epiphysis –
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The end of the bone further away from the trunk of the body
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Diaphysis -
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The median area of the bone.
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Epiphysis plate –
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Hyaline cartilage cells that divide to add length to the bone, Gradually ossifies.
Endosteum – Lines the inside of the bone. Contains osteoprogenitor cells Peristeum – Lines the outside of the bone and is continuous with the joint capsule. Contains osteoprogenitor cells Osteoprogenitor – Makes osteoblasts and osteoclasts Osteoblasts – Secrete bone matrix and moves like and amoeba. Works to remodel the bone. Osteoclasts – Eats up bone Concentric lamella – Bone matrix Osteocytes – Bone cells that were osteoblasts before they stopped making Canaliculi - Tunnels in the |
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Endosteum –
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Lines the inside of the bone. Contains osteoprogenitor cells
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Peristeum –
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Lines the outside of the bone and is continuous with the joint capsule. Contains osteoprogenitor cells
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Osteoprogenitor –
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Makes osteoblasts and osteoclasts
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Osteoblasts –
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Secrete bone matrix and moves like and amoeba. Works to remodel the bone.
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Osteoclasts –
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Eats up bone
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Concentric lamella –
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Bone matrix
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Osteocytes –
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Bone cells that were osteoblasts before they stopped making
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Canaliculi -
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Tunnels in the osten that the ostecytes.
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