Flashcards in Ch 6.1/2 Fn Skeletal System and Cartilage Deck (31):
The skeletal system consists of
The fns of the skeletal system
Supports the body
Movement (muscles attach)
Storage (minerals and lipids)
Site of bl cell production
_____ produce cartilage and become ______
Chondrocytes are located in lacunae and are surrounded by
The matrix of cartilage contains
Collagen fibers (for strength)
Proteoglycans (to trap water)
What surrounds the cartilage?
What are the 2 layers of perichondrium?
The inner layer of perichondrium contains
The outer layer of perichondrium contains
What is apposition all growth?
Chondroblasts in the inner layer of perichondrium grow new cartilage on the surface of the cartilage
What is interstitial growth
Chondrocytes within the cartilage divide and produce additional matrix
What are the 2 types of bone formation during fetal development?
name the 5 fn of the skeletal system
blood cell production
how does the skeletal system provide support to the body?
bone is well suited for bearing weight
cartilage provides a firm, yet flexible support within certain structures
what are ligaments?
bands of FCT that attach to bones and hold them together
how does the skeletal system protect the body
bones are hard and protect the organs they surround
rib cage/heart, lungs etc
how does the skeletal system support movement of the body?
muscles attach to bones by tendons
cntx of skeletal muscle moves the bones
what are tendons?
bands of FCT that attach muscle to bone
what does the skeletal system store?
Ca++, P, some adipose tissue
how does the skeletal system support blood cell production?
long bone cavities are filled with red bone marrow which makes blood cells and platelets
what are the 3 types of cartilage?
hyaline, fibrocartilage, elastic
cartilage is made of
matrix and cells
what are the cells of cartilage?
what are chondroblasts and where are they?
they make new matrix
in areas of growth, repair and development
what are chondrocytes and where are they?
support the matrix
lie in the lacuna in established, mature cartilage
what is the matrix of cartilage made of?
what is the perichondrium
made of DFCT
what are the 2 layers of the perichondrium made of?
outer layer, irregular DFCT
inner layer of chondroblasts
what is different about articular cartilage?
what is appositional chondral growth?
growth by adding to the surface by chondroblasts in the perichondrium