Long Bones 3.1.2 Flashcards
Articular cartilage
- connective tissue on the ends of long bones
-lets bones glide and move without friction
(special type , supportive)
Epiphyseal Line
-a line on the bone that shows where bone growth occurred
(between epiphysis and shaft of center of bone)
Epiphysis
Rounded end of a long bone.
(long bone closer to truck of body, proximal epiphysis, close to origin)
Diaphysis
Long hollow tube, in middle of bone.
(known as shaft, bone marrow located here, different types)
Distal Epiphysis
Rounded end further from the trunk of the body.
distal = further away, distance
Compact Bone
Dense connective tissue, hardened by minerals (calcium) appear solid
Endosteum
Thin membrane that lines the inside of diaphysis. (inside medullary cavity)
Medullary Cavity
Hollow space inside diaphysis.
Osteocyte
Bone cells found within lacunae. Strength bone tissue by adding calcium/minerals to bone tissue. Monitor health and stimulate regenerations process of bones
Osteon
Basic structural unit of a compact bone (Haversian system, densely packed together)
Periosteum
Tough membrane that covers long bones. Contians blood vessels that connect to muscular system. Provides connection between skeletal system & other organ systems
Red Bone Marrow
Tissue that produces new blood cells, in open spaces of epiphyses (bone marrow = type of issue)
Spongy Bone
Fill hollow spaces in epiphyses, can be filled with red bone marrow (cancellous bone, a porous type of bone made of branching tissue)
Yellow Bone Marrow
Energy Storage, within medullary cavity, mostly fat
Lamellae
Calcium-containing rings around the central canal
Lacunae
Dark circles, tiny opening or living bone tissue in the osteon
Canaliculi
Tiny passageways, connect lacunae to other lamellae, enables nutrients to get around
Haversian Canal
The center passageway of osteon, blood vessels travel
