Help
Options
Question
skeletal system
click to flip
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't know
Question
Calcium storage
Remaining cards (39)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
CHAP 6-Skeletal
UHS
| Question | Answer |
|---|---|
| skeletal system | supports and gives shape to the body;protects internal organs, helps with movements,stores calcium |
| Calcium storage | hormones regulate |
| calcitonin | increases storage;parathyroid hormone reduces stores of calcium |
| Hematopoiesis | the blood cell formation in red bone marrow |
| Four Major Bone Types(defines by the according to their shape) | 1-Long(humerus) 2-Short(Carpals) 3-Flat(frontal) 4-Irregular(vertebrae) |
| Diaphysis (Shaft) | is the hollow tube of hard compact bone |
| Medullary Cavity | the hollow are inside diaphysis that contains yellow marrow |
| Epiphysis(ends of the bone) | are the spongy that contains red bone marrow |
| Articular Cartilage | covers the epiphyses and functions as a cushion |
| Periosteum | is the strong membrane covering bone everywhere except at joint surfaces |
| Endosteum | is the thin membrane lining the medullary cavity |
| Flat Bones | have a spongy bone layer sandwiched between two compact bone layers |
| Diploe | is the spongy bone layer of a flat bone |
| trabeculae | spongy bone has a texture that results from needlelike threads of the bone, surrounded by a network of open spaces;found in epiphsis of bones contain red bone marrow |
| Osteon | Structural unit in compact bone; |
| Concentric lamella | calcified matrix arranged in multiple layers or rings |
| Ostocytes | bone cells |
| Lacunae | are small, spindle-shaped spaces each containing an osteocyte that is left behind by osteoblasts during the process of remodelling. |
| Canaliculi | a small channel found in ossified bone |
| Chondrocyte | cartilage cell |
| Cartilage Matrix | is gel-like and lacks blood vessels |
| Early bone development | before birth, consists of cartilage and fibrous structures |
| Osteoblasts | FORM NEW BONE |
| Osteoclasts | REABSORB BONE;are inactive osteoblasts |
| Endochondral ossification | Cartilage models gradually and is replaced by the calcified bone matrix |
| TWO main divisions of skeleton | 1-Axial 2-Appendicular |
| Axial Skeleton | skull, spine, throax, hyoid bone |
| Appendicular Skeleton | Upper extremites including shoulder girdle and lower extremites including hip girdle. |
| Male Skeleton | Generally Larger than female; shape of pelvisis deep and narrow;pubic angle is narrower |
| Female Skeleton | generally smaller than male; pelvis is shallow and broad; Pelvis inlet is generally wider; pubic bones is generally wider |
| Hyoid Bone | anchors tongue; only bone not connected to another |
| Three kinds of joints | 1-Synarthrosis joint 2-Amphiarthrosis 3-Diarthosis |
| Synarthrosis Joints | is no movement;fibrous connective tisse grows between articulating bones; EX. sutures of the skull |
| Amphiarthrosis Joints | slight movements; the cartilage connects articulating bones; EX. symphsis pubis |
| Diarthosis | is a free movement joint;joint capsule and ligaments that hold adjoining bones together permit movement at joint |
| Synovial membrane | is the soft tissue found between the articular capsule |
| Synovial fluid | its yolk-like consistency;the principal role of synovial fluid is to reduce friction between the articular cartilage of synovial joints during movement. |
| Bursae | are fluid-filled pouches that absorb shock |
| Bursitis | inflammationof a bursa |
| Functions of free movable joints | 1-ball and socket 2-hinge 3-pivot 4-saddle 5-gliding 6-condyloid |
Created by:
TrAvIeSa262
Popular Anatomy sets