What Do You Know About Cartilage and Its Types Flashcards

What do you know about cartilage and its types? Cartilage is a firm tissue that is much softer and flexible than bone. The primary function of the cartilage is to connect bones. Take a read through the flashcards provided and get to see how much more you will learn about the different types of cartilages in the human body.

85 cards   |   Total Attempts: 182
  

Cards In This Set

Front Back
Question 1
Cartilage
Resilient tissue that is poorly vascularlized
-Hyaline
-Elastic
-Fibrocartilage
Hyaline Cartilage
-Articular cartilages and coastal (rib) cartilage, larynx, trachea, and nose
-Rich in collagen fibers and appear glassy
-Most abundant cartilage
-Support and flexibility and resisting compression
-Forms embryonic skeleton
Elastic Cartilage
-Ear pinna and epiglottis
-Contains many elastic/collage fibers
-Able to tolerate repeated bending
Fibrocartilage
-Intervertebral discs, knee menisci, pubic symphysis
-Inermediate between hyaline and elastic cartilage
-Resists strong compression and strong tension (pulling pressures)
Chondocyte in Lacunae
Produce additional cartilage tissue
Perichondrium
Round; membrane of fibrous connective tissue that surrounds the external surface of cartilage
Appositional Growth

Think: new cartilage
Chondoblasts in surrounding perichondrium produce new cartilage; produce cartilage inside
-Growth of bone by addition of bone tissue to its surface
Interstitial Growth

Think: matrix
Chondrocytes within cartilage divide and secrete new matrix
Tissue in Bones
-Come from mesoderm
-Dominated by bone connective tissue
-Contain nervous tissue (ectoderm) and blood connective tissue
-Contain cartilage in articular cartilages
-Contain epithelial tissue lining blood vessels
What germ layer is the inside layer of bone made out of?
Endoderm
Function of Bones
-Support, movement, protection, mineral storage, bone-cell formation (bone contains bone red marrow), energy metabolism (osteoblasts secrete osetocalcin)
Osteocalcin
Stimulates pancreas to produce more insulin and fat cells to become insulin sensitive
Extracellular Matrix
35% organic
-Rich in collagen - provides tensile strength; contributes to flexibility

65% inorganic
-Mineral salts (ex: calcium phosphate) lie around collagen fibrils
-Mineral salts pack tightly to give bone its hardness to rest compression
-Bones don't resist torsion forces well
Osteogenic cells
-Stem cells that differentiate into osteoblasts
-From or composed of any tissue concerned in bone growth or repair
Osteoblasts
Actively produce and secrete bone matrix (ground matrix and collagen fibrils)
-Bone matrix is osteoid
-Within weeks of secretion, inorganic calcium salts crystallize within osteoid
-Add bone tissue to external surface along diaphysis