Bone A

Front

What does the human skeleton initially consist of

Back

consists of just cartilage, which is replaced by bone, except in areas requiring flexibility

Front

When does calcification of cartilage occurs

Back

occurs during normal bone growth in youth, but can also occur in old age or following an injury

Front

What is the skeletal cartilage

Back

made of highly resilient, molded cartilage tissue that consists primarily of water

Contains no blood vessels or nerves

Front

What is the perichondrium

Back

layer of dense irregular connective tissue surrounding cartilage like a girdle

Helps cartilage resist outward expansion

contains blood vessels for nutrient delivery to cartilage

Front

What is cartilage made up of

Back

made up of chondrocytes, cells encased in small cavities (lacunae) within jelly-like extracellular matrix

Front

What are the three types of cartilage

Back

Hyaline cartilage, Elastic Cartilage, Fibrocartilage

Front

What is Hyaline cartilage

Back

provides support

The most abundant type; contains only collagen fibers

Articular(joints), costal(ribs), respiratory(larynx), nasal cartilage(nose tip)

Front

What is Elastic cartilage

Back

provides elasticity

Like hyaline cartilage, but contains elastic fibers

External ear and epiglottis

Front

What is Fibrocartilage

Back

provides cushion

Thick collagen fibers: has great tensile strength

Menisci of knee; vertebral discs

Front

What two ways does cartilage grow

Back

Appositional growth, interstitial growth