Structural Organisation In Animals( Animal Tissue ) Flashcards
Who introduced the term epithelium
Ruysch
What is the basal lamina composed of
Mucopolysaccharides and glycoproteins, but decreased by epithelial tissue.
What is the fibrous or reticular lamina composed of
Collagen or recticular fibres of the underlying connective tissue.
What is the function of simple epithelium tissue
As lining for body cavities, ducts and tubes
Squamous epithelium is also known as
Pavement epithelium
Where are the simple squamous tissue located
In the walls of blood vessels Air sacs or alveoli Lymph vessels Wall of bowman's capsule Loop of Henri of nephron, Coelomic cavities etc
What are the functions done by simple squamous tissue
Filtration in bowman’s capsule
Exchange of materials between blood capillaries and tissue fluid
What is the use of microvilli as brush in tissues
It increases the surface area to several times
Where is cuboidal squamous tissue located
Tubular parts of nephron
Ducts of glands
Thyroid follicles
Ovaries and testes( germinal epithelium)
Where is brush bordered cuboidal epithelium present
On the proximal convoluted tubule (PCT)of nephron in kidney.
Functions of cuboidal epithelium
Reabsorbtion and secretion
Where is the nuclei of columnar epithelium situvated
It is near the base of the cells
The cells which produces mucus in columnar tissue
Goblet tissue
The epithelium containing mucus secreting cells, along with underlying supporting connective tissue is called
Mucosa ,or Mucous membrane
Compound epithelium is also known as
Stratified epithelium
Compound epithelium is classified into
Keratinised and non keratinised squamous tissue
Speciality of keratin
It is water proof
Where is keratinised squamous tissue is located
Dry surfaces
Where is non keratinised squamous tissue located
Wet surfaces like mouth , buccal cavity, cheek epithelium etc
The transitional epithelium is resting
Fluid matrix
Speciality of plastic epithelium
Stretchable
Where is the transitional epithelium located
Renal pelvis , ureter , urinary bladder etc..
Gap junction is also known as
Communication junction
Function of gap junction
Allows transport of materials between cells
Function of the interdigitated cell junction
Attach adjacent cells together
Function of tight junction
Check the leakage of cytoplasm
Function of adhering junction
Adherence of two cells with the help of cementing substances
Example of adhering junction
Protein plaque
Classification of adhering junction
Zonula adherence
Macula adherence
Hemi desmosome
In hemi desmosome the plaque is located
At the base of the cell
A cell/tissue / organ with secretary function is known as
A gland
Type of cells in glandular epithelium
Cuboidal or columnar cells
Example for unicellular gland
Goblet/ chalice/ mucocyte ,secrete mucus
A multicellular gland
Salivary gland , sebaceous gland , sweat gland etc.
Some heterocrine glands
Pancreas , gonads (ovary/testes)
The most abundant connective tissue in our body
Areolar tissue
Dense regular connective tissue
Tendons and ligaments
Dense irregular connective tissue
Dermal skin
Colour of collagen fibres
White fibre
Elastin fibre colour
Yellow fibre
Connective tissue whose matrix is solid
Bone and cartilage
Fluid connective tissue
Blood and lymph
Nerve fibres is also known as
Axons
Out of 500 species of earth worm how many are found from India
13 species
Name any common species of earth worm
Pheretima posthuma and lumbricus
Earth worms can be traced by their faecal deposits known as
Worm Casting
The different types of apertures in earthworm
Mouth Anus Spermathecal apertures Female genital pores Male genital pores Nephridiopores Dorsal pores
The body wall of earth worm is made of
Cuticle
Epidermis
muscular layer
Coelomic cavity
In earthworm,name the segment in which the mouth is present
Peristomium
