connective tissue histo

Question 1

Loosely arranged cells and abundant stroma

Answer 1

CT

Question 2

Embryonic origin of CT

Answer 2

Mesoderm

Question 3

types of ct proper

Answer 3

Collagenous
Reticular
Elastic

Question 4

types of collagenous tissue

Answer 4

loose

dense

Question 5

type of collagenous tissue
> widely distributed
> superficial and deep fascia
> few collagen fibers

Answer 5

loose CT

Question 6

types of collagenous tissue

> close packing of collagen fibers

Answer 6

DENSE CT

Question 7

– collagen fibers in bundle randomly oriented

-dermis ,GIT submucosa , capsule of organs, periosteum / perichondrium

Answer 7

a. dense irregular

Question 8

• fibers oriented in one direction and parallel to each other
• tendons , ligaments , aponeurosis

Answer 8

b. dense regular

Question 9

> supporting framework of hematopoietic and lymphoid organs
contains reticular fibers ( argyrophillic fibers ) surrounds other tissues and cells i.e. adipose , muscle , basal lamina , endoneurium , stroma of glandular organs

Answer 9

RETICULAR TISSUE

Question 10

> slender , refractile fibers with elastin

> walls of hollow organs , blood vessels , trachea , bronchi yellow ligaments , suspensory ligaments

Answer 10

Elastic Tissue

Question 11

Principal cells of the connective tissue

Synthesis of fibers and amorphous ground substance ( GAG )

Answer 11

Fibroblast

Question 12

> Tissue Phagocytes

Answer 12

2. Macrophages ( Histiocytes ) :

Question 13

CELLS FOR Heat production
Storage of neutral fats
“ Signet ring “ appearance

Answer 13

3. Fat cells ( Adipocytes ) :

Question 14

Type of cells
Infrequent
usually seen in areas of inflammation
produces antibodies
“ cartwheel “ or “ spokewheel “ appearing nucleus
with Inclusion bodies called “ Russell bodies “

Answer 14

4. Plasma Cells :

Question 15

type of cells
With granules containing heparin , histamine , and serotonin .
anaphylactic sensitivity reactions

Answer 15

mast cells

Question 16

TYPE OF CT FIBER
> most numerous
> most abundant protein in the human body
> with tropocollagen molecules

Answer 16

Collagen fibers :

Question 17

> Type I collagen

Answer 17

dermis , bone, tendon, fibrocartilage

Question 18

Type II collagen

Answer 18

hyaline and elastic cartilage

Question 19

Type III collagen

Answer 19

endomysium, smooth m., liver , spleen, kidney, lung

Question 20

Type IV collagen

Answer 20

basal lamina

Question 21

Type V collagen

Answer 21

Fetal membrane , blood vessels

Question 22

distinctive cell of mucous connective tissue is a primitive fibroblast,

spindle-shaped or stellate.

Wharton’s jelly of the umbilical cord

Answer 22

mucuous CT

Question 23

large , oval shape , “ signet ring “
appearance

Function : Fat storage
Insulation
Mechanical support

Answer 23

ADIPOSE TISSUE

Question 24

Types of adipose tissue

Answer 24

Yellow / white

Brown / multilocular