Connective Tissue

Question 1

What are 8 functions of connective tissue?

Answer 1

1. binds organs
2. provides support
3. facilitates movement
4. protects
5. provides immune defense
6. stores energy and materials
7. helps to produce heat
8. transports within blood stream

Question 2

Mucous Connective tissue

Answer 2

embryotic tissue; limited to Wharton’s jelly that fills and supports tissues of the umbilical cord

TEMPORARY tissue

Question 3

Fibroblasts

Answer 3

Most common cells of connective tissue

Large, flat, branching cells that produce fibers and ground substance

Come rushing in to form scar tissue when injured

Question 4

Histiocytes

Answer 4

Macrophages of connective tissue

Question 5

Leukocytes

Answer 5

esp. neutrophils, reside in connective tissue, react againt bacteria, toxins, and foreign matter

Question 6

Plasma Cells

Answer 6

Produce antibodies and are only found in enflamed tissue and the wall of the digestive tract.

Question 7

Mast Cells

Answer 7

found near blood vessels

produce heparin and histamine

Question 8

Adipocytes

Answer 8

(fat cells) appear in some parts of fibroconnective tissues

Question 9

Fibers are made of _____?

Answer 9

Protein

Question 10

Three types of fibers found in connective tissue

Answer 10

1. Collagenous fibers
2. Reticular fibers
3. Elastic fibers

Question 11

Collagenous fibers

Answer 11

Tough,thick, flexible, and resist stretching. Constitutes 25% of the body’s protein. Holds structures together

*Also called white fibers

Question 12

Reticular fibers

Answer 12

Collagen fibers(but thinner) in reticular connective tissue. Supportive network within tissues.

Cant see without special stain

Question 13

Elastic fibers

Answer 13

Made of the stretchy protein elastin. Provide elastic quality to areas that stretch. Also called yellow fibers.

Question 14

Ground substance

Answer 14

Components: tissue fluid, minerals, and proteogylcans, the especially large colloidal particles that form a viscous tissue gel. In bone, tissue cell is made up of chondroitin sulfate. In fibroconnective tissue hyaluronic acid compromises all gel tissue.

Question 15

What is tissue gel made of in bone?

Answer 15

Chondroitin Sulfate

Question 16

What comprises the tissue gel in fibroconnective tissue?

Answer 16

Hyaluranic acid

Question 17

What are the two broad types of fibroconnective tissue?

Answer 17

Loose and Dense

Question 18

Loose Connective Tissue

Answer 18

a. Areolar
b. Reticular
c. Adipose

Question 19

Dense Connective Tissue

Answer 19

a. Dense regular
b. Dense irregular

Question 20

What kind of tissue is this?

Answer 20

Areolar connective tissue

Question 21

What kind of tissue is this?

Answer 21

Adipose connective tissue

Question 22

Answer 22

Dense regular connective tissue

Question 23

Answer 23

Dense irregular connective tissue

Question 24

Answer 24

Hyaline cartilage connective tissue

Question 25

Answer 25

Elastic cartilage connective tissue

Question 26

Answer 26

Fibrocartilage connective tissue

Question 27

Answer 27

Reticular tissue

Question 28

Areolar diagram

(Loose connective)

Answer 28

Question 29

adipose connective

(loose)

Answer 29

FAT cells! Fat pushed nucleus against cell walls

• reserve fuel; organ supoprt/protection; insulation against heat loos

Question 30

What are the sites of areolar tissue?

Answer 30

wide distribution, organ packaging, surrounds capillaries

Question 31

What is the function of loose areolar tissue?

Answer 31

wraps/surrounds organs

Question 32

Areolar Loose Connective Tissue

Answer 32

• Composed of all 3 kinds of fibers: reticular, elastic, collagen.
• consists of fibroblasts, mast cells, macrophages, and WBC (leukocytes)

Question 33

Reticular Loose Connective Tissue

Answer 33

Fibers form a soft, internal skeleton that support other cell types

Question 34

Histamine

Answer 34

Causes inflamation; causes fluid to leak out of blood releasing white blood cells with it to fight off infection bacteria, foriegn invaders, etc.

Question 35

Matrix

Answer 35

area between cells (what they sit in)

Where fibers are made

Question 36

Macrophages

Answer 36

• Motile cells sometimes attached to fibers.
• they clear foreign particles from tissues by phagocytosis
• “macro-“ = big

      "-phages"= eaters

• NOT big cells, just big eaters

Question 37

Haline cartilage

Answer 37

• Firm but no shape/structure
• really shiny and smooth
• connects long bones (articular (bones come together) hyaline cartilage)
• chondroblasts make chondrocytes

Question 38

Chondroblasts/chondrocytes

Answer 38

Same thing BUT chondroblasts make cartilage and chondrocytes are mature chondroblasts

Question 39

Give 3 examples of where Hyaline cartilage is found

Answer 39

• most of the emryonic skeleton
• ends of long bones
• in joint cavitites
• costal cartilage of the ribs }(between the sternum adn bony rib)
• nose
• trachea (windpipe)
• larynx (voicebox)

Question 40

Where can dense irregular connective tissue be found

Answer 40

fibrous capsules:

• organs/joints
• dermis of the skin
• submucous of the digestive tract

Question 41

Dense IRREGULAR connective tissue

Answer 41

structural strength, able to withstand tension frpm many directions

Question 42

Dense connective tissue REGULAR

Answer 42

• predominately collagen fibers (can be elastic in some ligaments, arterial wall, and the larynx)
• increased tensile strenth when force applid in one direction

Question 43

Dense connective tissue

Answer 43

high fiber distribution; also know as
“fibrous”

mostly collagen fibers

Question 44

Where can you find loose areolar tissue

Answer 44

wrapped around organs

Question 45

Where can you find loose reticular?

Answer 45

Hematopoetic (makes blood); lyumphoid tissues: spleen, lymph nodes, ans bone marrow

Question 46

Where can loose adipose be found?

Answer 46

under skin, around kidneys/eyeballs, in bones, within abdomen, in breasts