Lecture 2: Connective Tissue

Question 1

What type of CT is the arrow pointing at?

Answer 1

Loose

Question 2

What structures does this CT make up?

Answer 2

Tendons

Question 3

What structures does this type of CT make up?

Answer 3

Ligaments

Question 4

Label the arrows in this image of CT

Answer 4

Arrow on right = fibroblasts

Arrow on top left = collagen fibers

Next = elastic fibers

Next = Mast cells

Bottom arrows = ground substance

Question 5

What type of CT is this and what type of structure does this make up?

Answer 5

Dense regular CT; fascia

Question 6

Label the arrow in this image of CT

Answer 6

Fibrocyte nuclei

Question 7

What type of tissue is this?

Answer 7

Reticular CT

Question 8

What type of tissue is this?

Answer 8

elastic CT

Question 9

What is this a picture of and what is its tissue type?

Answer 9

Tunica adventitia of the aorta; elastic CT

Question 10

Label the arrows in this image of adult CT

Answer 10

Top = collagen fibers

Bottom = fibroblast nuclei

Question 11

What cell type is depicted in the picture?

Answer 11

Macrophages

Question 12

What cell type is depicted in the image?

Answer 12

Mast cells

Question 13

What cell type is depicted in the image?

Answer 13

Plasma cells

Question 14

Label the arrows

Answer 14

Top = adipocyte

Bottom = lipid

Question 15

What cell type is depicted in the picture?

Answer 15

Fibroblasts

Question 16

What cell type is depicted in the picture?

Answer 16

Mesenchymal cells

Question 17

Undifferentiated mesenchymal cells can differentiate into what 2 things?

Answer 17

Blood or CT cell

Question 18

What tissue type is depicted in the picture?

Answer 18

Dense irregular CT

Question 19

What type of CT is found in the mucosa and submucosa of various organs, surrounding blood vessels, nerves and muscles?

Answer 19

Loose

Question 20

What type of CT is found in tendons, ligaments, the cornea and fascia?

Answer 20

Dense Regular

Question 21

What type of CT is found in the dermis and submucosa of the GI?

Answer 21

dense irregular

Question 22

What cell type produces reticular fibers?

Answer 22

Fibroblasts -> specifically reticular cells

Question 23

Where is reticular CT typically found?

Answer 23

lymphatic tissue

Question 24

Where is elastic CT typically found?

Answer 24

In walls of large blood vessels and ligaments

Question 25

which type of adipose tissue is made up of unilocular adipocytes and which is made up of multilocular adipocytes?

Answer 25

White fat = unilocular Brown fat = multilocular

Question 26

An adipocyte is a modified _________ that stores lipid in single vacuole (unilocular)

Answer 26

fibroblast

Question 27

White fat adipocytes are sometimes called ______________ based on their resemblence to a ring.

Answer 27

signet rings

Question 28

\_\_\_\_\_\_\_\_\_\_\_ synthesize and secrete proteoglycans, glycoproteins and the precursor molecules of collagen and elastin

Answer 28

fibroblasts

Question 29

Where is type I collagen found?

Answer 29

bone, tendon, dentin

Question 30

Where is type II collagen found?

Answer 30

Hyaline and elastic cartilage

Question 31

Where is type III cartilage found?

Answer 31

Reticular lamina of basement membranes

Question 32

Where is type IV collagen found?

Answer 32

Basal lamina

Question 33

Where is type V collagen found?

Answer 33

fetal amnion and chorion, muscle and tendon sheaths

Question 34

Banded fibers for tensile strength are characteristic of what type of collagen?

Answer 34

Type I

Question 35

Thinner fibrils are characteristic of what type of collagen?

Answer 35

Type II

Question 36

Reticular fibers are characteristic of what type of collagen?

Answer 36

Type III

Question 37

No formed bundles is characteristic of what type of collagen?

Answer 37

Type IV

Question 38

No formed banded fibrils is characteristic of what type of collagen?

Answer 38

Type V

Question 39

What is the only type of collagen that is non-fibrillar?

Answer 39

type IV

Question 40

What type of cartilage (I-V) is this?

Answer 40

II - This is cartilage

Question 41

What type of collagen (I-V) is this?

Answer 41

IV - Basement membrane

Question 42

What type of collage (I-V) is this?

Answer 42

I - Bone, skin, tendons (the dense stuff)

Question 43

What type of collagen (I-V) is this?

Answer 43

III - Reticulin (wound repair, skin, vessels, lymph organs)

Question 44

What 3 cell types make elastic fibers?

Answer 44

- Fibroblasts (in skin and tendons) - Chondroblasts (in elastic cartilage) - Smooth muscle cells (in blood vessels and respiratory tract)

Question 45

What type of fibers are depicted in this picture?

Answer 45

Elastic fibers

Question 46

What 2 things are elastic fibers made up of?

Answer 46

Elastin and fibrillin

Question 47

What cell type is depicted in the picture?

Answer 47

Macrophages

Question 48

What is the name given to macrophages in the liver, bone and CNS?

Answer 48

Liver = Kupffer cells Bone = Osteoclasts CNS = microglial cells

Question 49

What cell type is the arrow pointing at?

Answer 49

Macrophage

Question 50

What cell type is this?

Answer 50

mast cell

Question 51

What cell type is this?

Answer 51

plasma cells

Question 52

What cell type is this?

Answer 52

Plasma cell

Question 53

Label A-C

Answer 53

A = fiber B = fibril C = microfibril

Question 54

Label A and state what kind of CT this is

Answer 54

Reticular fibers; Reticular CT

Question 55

Label A and state what type of CT this is?

Answer 55

collagen fibers; dense irregular CT

Question 56

Label A-C

Answer 56

A = Collagen B = Mast cells C = elastic fibers