4 Cartilage and Bone Tissue Flashcards
Connective Tissue
Bone, Blood, Cartilage, Connective Tissue Proper; loose and dense.
Hyaline
most abundant, flexibility and resilience; trachea, articular cartilage,
Fibrocartilage
thick collagen fibers, shock absorber; intervertebral discs, menisci of knee, pubic symphysis
Elastic
highly branched elastic fibers, flexibility; Epiglottis, auricle of the ear
Chondroblasts
Produce matrix of cartilage
Chondrocytes
Mature cartilage, resides in lacuna
Perichondrium
made of dense connective tissue, provides mechanical support and protection
Bone
Osseous connective tissue
Calcified extracellular matrix
Calcium phosphate
Hemopoiesis
Red bone marrow
Bone stores minerals and energy in…
calcium phosphate, yellow bone marrow
Epiphysis
ends of long bones

diaphysis
shaft of long bone

metaphysis
contains the epiphyseal plate or line

articular cartilage
hyaline cartilage covering the ends of bones within joints
Medullary cavity
contains yellow marrow in adults and red marrow in children

Endosteum
layer of cells lining the spongy bone and medullary cavity

periosteum
dense CT outer covering of bone

perforating fibers
attach the periosteum to compact bone
Nutrient foramen
contains nutrient artery
Osteoprogenitor cells
stem cells derived from mesenchyme that become osteoblasts
Osteoblasts
Immature osteocytes that build bone by secreting osteoid, decreases blood calcium levels
Osteocytes
mature bone sells that maintain bone matrix, Reside in lacunae

Osteoclasts
Cells that consume bone, Phagocytic cells using hydrochloric acid and lysosomes, increase blood calcium levels.

Compact bone
cortical bone, solid, dense, lined by periosteum found superficially, contains osteons
Spongy bone
cancellous or trabecular, porous, lined by Endosteum found deeper regions of bone.
Osteon (Haversian system)
Basic structural and functional unit

Central canal
Haversian canal

Concentric lamellae
concentric rings of osseous connective tissue that surround the central canal

Osteocytes
mature bone cells

Lacunae
cavities which house osteocytes

Canaliculi
connecting neighboring lacunae, allow nutrients minerals, gases, and wastes to travel between the central canal and osteosytes

Perforating canals
connect blood and nerve supply to central canal
Trabeculae (spongy bone)
main structure, forms crisscrossing bars and plates

Intramembranous ossification
forms flat bones, bone growth within a membrane
Endochondral ossification
bone growth within cartilage, fetal framework of hyaline cartilage into bone, formation of most bones

Interstitial bone growth
length
appositional bone growth
thickness
Fracture repair
Hematoma forms, fibrocartilage callus forms, hard boney callus forms, bone remodeled.
Osteomalacia
Rickets in children, soft bones, and leads to bowed legs…vitamin D deficiency, Calcium deficiency
Osteoporosis
Excessive bone resorption, aged and post menopause
Synarthrosis
immovable
Amphiarthrosis
Slightly movable…
Diarthosis
freely movable. Di=two parts moving around
Fibrous
connected by fibrous tissue
Cartilagenous
connected by cartilage
Synovial
contains a joint cavity
Gomphoses
Fibrous joint, synarthotic, peg-in-socket, tooth root.
Suture
Fibrous joint synarthrotic
Syndesmoses
Fibrous joint amphiarthrotic connects ulna to radius. Syndesmosis interosseous membrane
Synchondroses
Cartilagious joint, synarthrotic, bones connected by hyaline cartilage (immobile joints between the rib and its costal cartilage)
Symphyses
Amphiarthrotic, bones connected by fibrocartilage, intervertebral disc, pubic symphysis
Sprain
reinforcing ligaments are stretched or torn
Torn Cartilage
tearing of the meniscus or articular cartilage
Dislocation
bones forced out of alignment
Bursitis
Inflammation of a bursa because of a blow
Tendonitis
Inflammation of a tendon or tendon sheath because of overuse
Gouty arthritis
Uric acid crystals in joint cavity
osteoarthritis
Chronic degenerative condition; wear and tear
Rheumatoid arthritis
autoimmune disease; chronic inflammatory disorder
Lever System FRE
1st Fulcrum in the middle, 2nd is resistance in the middle, 3rd is effort in the middle.