Structural Organization In Animals

Question 1

Tissue was first observed in___________

Answer 1

Coelentrates

Question 2

What is histology

Answer 2

It is the study of microscopic anatomy of tissues

Question 3

What is the original of epithelial tissue

Answer 3

Ectodermal- Skin
Mesodermal- coelomic cavity
Endodermal- gut epithelium

Question 4

Where are simple squamous epithelium present

Answer 4

• In the lining of blood vessels
• in the alveoli of lungs
• in nephrons in the Bowman’s capsule as podocytes which helps in ultrafilteration
• in coelomic cavities

Question 5

Types of epithelium

Answer 5

Simple epithelium- single layer of cells

Compound epithelium-multiple layers of cells

Question 6

Simple cuboidal epithelium are found in (3)

Answer 6

• thyroid follicles
• testes and ovaries (gonads) as germinal epithelium
• in PCT and DCT of nephrons

Question 7

Cileated epithelium are found in

Answer 7

Bronchioles and Fallopian tubes

Question 8

Ciliated pseudostratified stratified is found in__________

Answer 8

Trachea

Question 9

Examples of endocrine gland and what are they called

Answer 9

Call hormones

Examples: pituitary gland,thyroid,adrenal,thymus

Question 10

Exocrine glands examples and what are they called

Answer 10

Called enzymes

Examples sweat gland, salivary gland, mammary gland, digestive gland, ear wax gland (seruminous)

Question 11

Gland having both exocrine and endocrine gland

Answer 11

Heterocrine or mixed gland

Examples:pancreatic lobules, gonads

Question 12

Merocrine gland

Answer 12

No part of cell is lost

Secreted by simple diffusion

Question 13

Apocrine gland

Answer 13

Ethical part is lost

Example : mammary gland

Question 14

Holocrine gland

Answer 14

Whole cell is lost to release secretion

Example : sebacious gland

Question 15

Stratified cuboidal epithelium examples

Answer 15

Ducts of salivary glands and pancreas

Question 16

Stratified columnar epithelium

Answer 16

Ducts of mammary glands

Question 17

Transitional epithelium examples

Answer 17

Urinary bladder and uterus

Question 18

Cell junction (3)

Answer 18

Tight junction (zona occludence)
Macula adherence (zonula adherence)
Gap junction

Question 19

The most abundant tissue

Answer 19

Connective tissue

Question 20

types of cartilage

Answer 20

Hyaline cartilage
White fibres
Yellow fibres
Calcified cartilage - not in humans in frogs

Question 21

Seramoid bone (AIIMS)

Answer 21

Bones which are formed due to ossification of tendon

Example:Patela (knee cap)

Question 22

Movement in and out of blood vessels called ____________________

Answer 22

Diapedesis

Question 23

Myoglobin carries_______O2 molecule

Answer 23

1

Question 24

____________ are fragments of megakaryocytes (cells of bone marrow)

Answer 24

Platelets

Question 25

Storehouse of CA plus plus

Answer 25

Sarcoplasmic reticulum

Question 26

Largest muscle

Answer 26

Gluteus maximus

Question 27

Longest muscle

Answer 27

Tailor's muscle

Question 28

Smallest muscle

Answer 28

Stapidius

Question 29

The first phylum to exhibit tissue level organisation

Answer 29

Cnidaria

Question 30

Basement membrane is non-cellular made up of two layers called

Answer 30

Upper thin layer --> Basal lamina Made of glycoproteins and mucopolysaccharide Secreted by epithelial cells Lower thick fibres --> reticular lamina Made up of reticular fibres and collagen

Question 31

Who is synthesized antibodies in areolar tissues

Answer 31

Plasma cells / cartwheel sales

Question 32

The cells of cartilage are called

Answer 32

Chondrocytes

Question 33

What will happen if a bone is kept in HCL

Answer 33

It gets decalcified and become soft and flexible

Question 34

What is ossein protein and where is it present

Answer 34

It is a protein that is made up of 95% of collagen It is present in Bones

Question 35

The principal cells of areolar tissues are

Answer 35

Fibroblast

Question 36

Principal component of tendons and ligaments

Answer 36

Dense connective tissues made up of fibers and fibroblasts

Question 37

The tissue present in the skin is

Answer 37

Dense irregular connective tissue

Question 38

Bone is surrounded by a tough sheath called

Answer 38

Periosteum

Question 39

Cartilage is surrounded by a firm sheath called

Answer 39

Perichondrium

Question 40

Cartilage dissolving cells are called

Answer 40

Condroclasts

Question 41

Which cells can do diapedesis

Answer 41

WBCs or leukocytes