IB SEHS Unit 2-Joints & Connective Tissue

What are LCT and DCT made of

elastic fibers, collageneous finers, fibroblasts, gs

Difference in constitution between DCT and LCT

DCT has more collageneous fibers and fibroblasts, LCT has more gs

what is hyaline cartilage made of

chondrocytes, gs

where is hyaline cartilage found

articular cartilage (around joints) ex: sternoflavicular, sternocostal

what do chondrocytes do

produce and maintain collageneous fibers

what is fibrocartilage made of

collageneous fibers, chondrocytes, fibroblasts, gs

what does fibrocartilage do

provides structural support and cushioning in joints

where is fibrocartilage found

intervertebral disks, knee menisci

what is elastic cartilage made of

collageneous fibers, elastic fibers, chondrocytes, fibroblasts, gs

what does elastic cartilage do

provides strength and flexibility to structures in the body

where is elastic cartilage found

external ear

what is vascular tissue made of

gs (plasma), red blood cells (erythrocytes)

what does vascular tissue do

transport o2, glucose

where is vascular tissue found

arteries, veins, red bone marrow

what is adipose tissue made of

white and brown adipocytes (fat cells)

what do adipocytes make up

yellow marrow

what do adipocytes do

store energy as fat

where is adipose tissue found

anywhere there is fat (under skin, in bones, etc)

what is osseous tissue made of

collagen fibers, osteocytes, collageneous fibers, gs

what is different about gs in osseous tissue?

it contains calcium and phosphorus

what do the canaliculi of osteocytes do

connect lacunae and allow communication between osteocytes

what covers the outside of canaliculi as layers of bone tissue

lamellae

long bone desc

cylindrical, widened ends at articulations

examples of long bones

humerus, femur, radius, ulna (think limbs)

short bone desc

‘cube’ shaped, articulate with multiple other bones

short bone examples

carpals, tarsals

flat bone desc

(flat); have large surface area; can be curved, thick or thin

flat bone examples

scapula, ribs, sternum, ilium

irregular bone desc

‘other’, have specialized functions

irregular bone examples

vertebrae, facial bones