lab 3 connective tissue continued

Question 1

Elastic Tissue can be found:

Answer 1

ligaments of the vertebral column 
the suspensory ligament of the penis
walls of arteries
pulmonary alveolar septa
vocal cords

Question 2

Weigert’s stains elastic fibers ____

while orcein colors elastic fibers ___

Answer 2

purple or dark blue

red

Question 3

Reticular tissue is characterized by an abundance of ____

Answer 3

reticular fibers

These fibers cannot be distinguished from other collagenous fibers in H&E preparations.

However, reticular fibers are PAS positive (PAS = Periodic Acid-Schiff, a staining method used to detect structures with a high proportion of glycogen or carbohydrate macromolecules).

Question 4

Reticular fibers ____ (PAS = Periodic Acid-Schiff, a staining method used to detect structures with a high proportion of glycogen or carbohydrate macromolecules).

Reticular fibers are also ____ (i.e., contain cells that reduce silver solution to metallic silver, a staining method that is used to identify proteins, like collagen III, i.e. reticular fibers)

Answer 4

PAS positive

argyrophilic

Question 5

reticular fibers can be identified using ___

Answer 5

PAS

silver

Question 6

What organs are supported by a framework of reticular tissue?

Answer 6

kidney

spleen?

Question 7

Adipose Tissue consists of collections of adipocytes in ___ CT.

Answer 7

loose

Question 8

why do adipose tissue look empty?

Answer 8

Adipocytes accumulate large deposits of lipids that are dissolved and extracted during the preparation of the slide, leaving behind a large empty vacuole surrounded by a thin rim of cytoplasm.

Sometimes the flattened nucleus of the adipocyte may be seen

Question 9

he CT of the umbilical cord is an example of ___

Answer 9

mucous tissue

Question 10

the mucous tissue of the umbilical cord, has a ___ consistency and consists of an amorphous matrix containing ____ as well as a few elastic and reticular fibers.

Answer 10

jellly-like

collagenous fibers

Question 11

jejunum

Answer 11

1. Mucosa (containing loose areolar connective tissue)
2. Submucosa
3. Muscularis externa

Question 12

Answer 12

loose areolar connective tissue- jejunum

Mucosa

1. Luminal epithelium
2. Lamina propria

Question 13

jejunum

Answer 13

Mucosa

1. Luminal epithelium
2. Submucosa Composed of dense irregular connective tissue
3. Muscularis externa

Question 14

jejunum

Answer 14

Mucosa

1. Luminal epithelium
2. Lamina propria comprised of loose connective tissue

Question 15

jejunum

Answer 15

Mucosa

1. Luminal epithelium
2. Lamina propria comprised of loose connective tissue

Question 16

Answer 16

Loose areolar connective tissue: mesentery

1. Elastic fibers
2. Mast cell
3. Collagen fibers
4. Fibroblast nuclei

Question 17

Answer 17

Feline lip

1. Epidermis
2. Dermis containing loose areolar connective tissue
3. Mast cells (stained blue)

Question 18

Answer 18

1. Mucosa
2. Submucosa formed of dense irregular connective tissue
3. Muscularis externa

Question 19

Answer 19

Planum Nasolabiale

1. Dense irregular connective tissue of the dermis
2. Papillary layer of dermis formed by loose connective tissue

Question 20

Answer 20

Boar Epididymis

1. Dense irregular connective tissue capsule

Question 21

lymph node

Answer 21

1. Dense irregular connective tissue capsule

Question 22

Answer 22

Tendon

1. Collagen fibers
   Dense REGULAR connective tissue

Question 23

Answer 23

Dense REGULAR connective tissue
Tendon

1. Fibroblast nucleus

Question 24

Answer 24

1. Arterial lumen
2. Elastic fibers (stained dark blue/black)
3. Arterial wall

Question 25

Answer 25

Pulmonary alveolar septae 1. Elastic fiber (stained black) 2. Alveoli

Question 26

Answer 26

Kidney 1. Reticular fibers (stained black)

Question 27

Answer 27

Mucous Tissue: Umbilical Cord 1. Amorphous ground substance 2. Collagenous fiber 3. Fibroblast nucleus

Question 28

Answer 28

1. Adipocyte | 2. Adipocyte nucleus

Question 29

Answer 29

loose areolar connective tissue mesentary mast cell

Question 30

Answer 30

papillary layer (superficial layer of the dermis) areolar CT cat Lip Mast cell

Question 31

what is on the inside

Answer 31

jejunum lamina propria areolar connective tissue simple columnar cells on outside

Question 32

Answer 32

jejunum lamina propria muscularis mucosae submucosa muscularis externa

Question 33

Answer 33

Question 34

Answer 34

boar epididymis | dense irregular connective tissue

Question 35

on outside of lymph node

Answer 35

dense irregular connective tissue

Question 36

Answer 36

alveolus

Question 37

Answer 37

artery elastic fibers

Question 38

dark lines?

Answer 38

reticular fibers

Question 39

what other organs are supported by a framework of reticular tissue?

Answer 39

lymph node, liver spleen kidney

Question 40

purple things at edge?

Answer 40

adipose tissue nucleus