Cartilage

Question 1

where are blood vessels for cartilage found?

Answer 1

perichondrium (cartilage itself is avascular)

Question 1

these are created as chondrocytes undergo mitosis. several chondrocytes grouped together in same lacuna.

Answer 1

isogenous group

Question 1

Identify 3 arrows.

Answer 1

1. territorial matrix
2. interterritorial matrix
3. isogenous cell group

Question 2

lighter staining area between the isogenous groups- more collagen here

Answer 2

interterritorial matrix

Question 2

where is elastic cartilage found?

Answer 2

auricle, auditory canal, auditory tube, epiglottis

Question 3

Tissue type?

Answer 3

Elastic cartilage

Question 4

3 types of cartilage

Answer 4

hyaline elastic fibrocartilage

Question 5

where is hyaline cartilage found?

Answer 5

articular surfaces, nose, larynx, tracheal rings, epiphyseal plates, fetal bone bodels

Question 7

ECM has high __ strength

Answer 7

tensile (can withstand mechanical forces)

Question 7

how is arrangement of elastic cartilage different than hyaline cartilage?

Answer 7

more chondrocytes, smaller isogenous groups

Question 8

is perichondrium present in hyaline cartilage?

Answer 8

yes (a few exceptions)

Question 8

is perichondrium present in elastic cartilage?

Answer 8

yes.

Question 9

matrix of hyaline is __ due to high concentration of GAGs, so it stains __ (color)

Answer 9

basophilic bluish-purple

Question 10

cells that come directly from mesenchymal cells, lay down ECM

Answer 10

chondroblasts

Question 11

surrounds most cartilage- is a dense connective tissue capsule covering

Answer 11

perichondrium

Question 12

cells that are completely surrounded by ECM in a lacuna

Answer 12

chondrocytes

Question 12

Identify.

Answer 12

1. chondroblast
2. chondrocyte
3. perichondrium

Question 14

perichondrium is ___ so it stains ___ (color)

Answer 14

eosinophilic, pink

Question 15

Identify 3 arrows.

Answer 15

1. lacunae
2. interterritorial matrix
3. territorial matrix

Question 16

Identify tissue type. Identify cell.

Answer 16

Elastic cartilage. Adipocyte

Question 17

is perichondrium found in fibrocartilage?

Answer 17

no

Question 18

where is fibrocartilage found?

Answer 18

intervertebral discs, public symphysis, tendon-bone anchorages

Question 20

most common type of cartilage in human body

Answer 20

hyaline

Question 21

Identify.

Answer 21

isogenous groups

Question 21

this tissue looks like an intermediate between dense regular connective tissue & hyaline cartilage. chondrocytes are arranged in long rows separated by coarse collagen fibers.

Answer 21

fibrocartilage

Question 22

As you age, elastic cartilage is replaced by \_\_\_

Answer 22

adipocytes

Question 23

why aren't type 2 collagen fibers visible in ECM of hyaline cartilage sections?

Answer 23

because they have same refractive index as surrounding ECM

Question 24

Identify.

Answer 24

1. chondrocytes 2. chondroblasts

Question 25

Identify tissue type. What fibers are present?

Answer 25

fibrocartilage Type 1 collagen

Question 26

Identify tissue type.

Answer 26

elastic cartilage.

Question 28

all connective tissue arises from \_\_\_

Answer 28

mesenchyme

Question 30

basophilic matrix around each of the isogenous groups, rich in GAGs, negative charge, less collagen

Answer 30

territorial matrix

Question 31

Identify tissue type.

Answer 31

elastic cartilage

Question 32

type of collagen fiber found in hyaline cartilage?

Answer 32

type 2

Question 34

growth by addition to existing surface, generation of new chondroblasts

Answer 34

appositional growth

Question 35

growth by internal expansion, proliferation of chondrocytes & formation of isogenous groups

Answer 35

insterstitial growth

Question 36

elastic cartilage is different from hyaline cartilage because it contains \_\_\_

Answer 36

elastic fibers

Question 37

type of collagen present in fibrocartilage?

Answer 37

type 1

Question 38

Identify tissue type. Identify 1-3.

Answer 38

Fibrocartilage 1. Chondrocytes 2. Fibroblasts 3. Type 1 Collagen fibers

Question 40

osteoclasts are derived from __ & osteoblasts are derived from \_\_

Answer 40

hematopoietic stem cells mesenchymal stem cells

Question 41

Identify 1-3.

Answer 41

1. Territorial Matrix 2. Lacuna 3. Interterritorial matrix