Ch 6.1/2 Fn Skeletal System and Cartilage Flashcards Preview

Bio 364 Lecture Exam 1 > Ch 6.1/2 Fn Skeletal System and Cartilage > Flashcards

Flashcards in Ch 6.1/2 Fn Skeletal System and Cartilage Deck (31):
0

The skeletal system consists of

Bones
Cartilage
Tendons
Ligaments

1

The fns of the skeletal system

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

2

_____ produce cartilage and become ______

Chondroblasts
Chondrocyte

3

Chondrocytes are located in lacunae and are surrounded by

Matrix

4

The matrix of cartilage contains

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

5

What surrounds the cartilage?

Perichondrium

6

What are the 2 layers of perichondrium?

Outer layer
Inner layer

7

The inner layer of perichondrium contains

Chondroblasts

8

The outer layer of perichondrium contains

Fibroblasts

9

What is apposition all growth?

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

10

What is interstitial growth

Chondrocytes within the cartilage divide and produce additional matrix

11

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

Intramembranous ossification
Endochondral ossification

13

name the 5 fn of the skeletal system

support
protection
movement
storage
blood cell production

14

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

15

what are ligaments?

bands of FCT that attach to bones and hold them together

16

how does the skeletal system protect the body

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

17

how does the skeletal system support movement of the body?

muscles attach to bones by tendons
cntx of skeletal muscle moves the bones

18

what are tendons?

bands of FCT that attach muscle to bone

19

what does the skeletal system store?

Ca++, P, some adipose tissue

20

how does the skeletal system support blood cell production?

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

21

what are the 3 types of cartilage?

hyaline, fibrocartilage, elastic

22

cartilage is made of

matrix and cells

23

what are the cells of cartilage?

chondroblasts
chondrocytes

24

what are chondroblasts and where are they?

they make new matrix
in areas of growth, repair and development

25

what are chondrocytes and where are they?

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

26

what is the matrix of cartilage made of?

proteoglycans
collagen
protein fibers

27

what is the perichondrium

surrounds cartilage
made of DFCT

28

what are the 2 layers of the perichondrium made of?

outer layer, irregular DFCT
inner layer of chondroblasts

29

what is different about articular cartilage?

no perichondrium

30

what is appositional chondral growth?

growth by adding to the surface by chondroblasts in the perichondrium

31

what is interstitial growth

chondrocytes in the matrix can divide and add matrix between cells