Ch 6.1/2 Fn Skeletal System and Cartilage

Question 0

The fns of the skeletal system

Answer 0

Supports the body
Protection (organs)
Movement (muscles attach)
Storage (minerals and lipids)
Site of bl cell production

Question 1

The skeletal system consists of

Answer 1

Bones
Cartilage
Tendons
Ligaments

Question 2

_____ produce cartilage and become ______

Answer 2

Chondroblasts

Chondrocyte

Question 3

Chondrocytes are located in lacunae and are surrounded by

Answer 3

Matrix

Question 4

The matrix of cartilage contains

Answer 4

Collagen fibers (for strength)
Proteoglycans (to trap water)

Question 5

What surrounds the cartilage?

Answer 5

Perichondrium

Question 6

What are the 2 layers of perichondrium?

Answer 6

Outer layer

Inner layer

Question 7

The inner layer of perichondrium contains

Answer 7

Chondroblasts

Question 8

The outer layer of perichondrium contains

Answer 8

Fibroblasts

Question 9

What is apposition all growth?

Answer 9

Chondroblasts in the inner layer of perichondrium grow new cartilage on the surface of the cartilage

Question 10

What is interstitial growth

Answer 10

Chondrocytes within the cartilage divide and produce additional matrix

Question 11

What are the 2 types of bone formation during fetal development?

Answer 11

Intramembranous ossification

Endochondral ossification

Question 13

name the 5 fn of the skeletal system

Answer 13

support
protection
movement
storage
blood cell production

Question 14

how does the skeletal system provide support to the body?

Answer 14

bone is well suited for bearing weight

cartilage provides a firm, yet flexible support within certain structures

Question 15

what are ligaments?

Answer 15

bands of FCT that attach to bones and hold them together

Question 16

how does the skeletal system protect the body

Answer 16

bones are hard and protect the organs they surround
skull/brain
vertebrae/spinal cord
rib cage/heart, lungs etc

Question 17

how does the skeletal system support movement of the body?

Answer 17

muscles attach to bones by tendons

cntx of skeletal muscle moves the bones

Question 18

what are tendons?

Answer 18

bands of FCT that attach muscle to bone

Question 19

what does the skeletal system store?

Answer 19

Ca++, P, some adipose tissue

Question 20

how does the skeletal system support blood cell production?

Answer 20

long bone cavities are filled with red bone marrow which makes blood cells and platelets

Question 21

what are the 3 types of cartilage?

Answer 21

hyaline, fibrocartilage, elastic

Question 22

cartilage is made of

Answer 22

matrix and cells

Question 23

what are the cells of cartilage?

Answer 23

chondroblasts

chondrocytes

Question 24

what are chondroblasts and where are they?

Answer 24

they make new matrix

in areas of growth, repair and development

Question 25

what are chondrocytes and where are they?

Answer 25

mature chondroblasts
support the matrix
lie in the lacuna in established, mature cartilage

Question 26

what is the matrix of cartilage made of?

Answer 26

proteoglycans
collagen
protein fibers

Question 27

what is the perichondrium

Answer 27

surrounds cartilage

made of DFCT

Question 28

what are the 2 layers of the perichondrium made of?

Answer 28

outer layer, irregular DFCT

inner layer of chondroblasts

Question 29

what is different about articular cartilage?

Answer 29

no perichondrium

Question 30

what is appositional chondral growth?

Answer 30

growth by adding to the surface by chondroblasts in the perichondrium

Question 31

what is interstitial growth

Answer 31

chondrocytes in the matrix can divide and add matrix between cells