WITH 100% CORRECT ANSWERS |
LATEST VERSION 2025/2026.
What is a tissue - ANS groups of cells similar in structure the perform common or related
functions
what are the four basic tissue types? - ANS 1. Epithelial
2. Connective
3. Muscle
4. Nervous
Two forms of epithelial tissue - ANS covering and lining epithelium - external and internal
surface (skin)
glandular epithelium - sensory tissues in glands (salivary glands
Main functions of epithelial tissue - ANS protection, absorption, filtration, excretion,
secretion, and sensory reception
special characteristics of epithelial tissue - ANS polarity, specialized contacts, supported by
connective tissue, avascular but innervated, regeneration
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, Special characteristics of epithelial tissue - polarity - ANS Apical surface faces the external
environment or a body cavity and it often modified for specific functions related to absorption,
secretion or protection
Basal surface is anchored to the underlying connective tissue through BASEMENT MEMBRANE
and plays a role in tissue integrity and supply
both surfaces contribute to overall function and structure
Special characteristics of epithelial tissue - Specialized contracts - ANS tight junctions +
demosomes
Special characteristics of epithelial tissue - supportive by connective tissue - ANS supportive
by a basement membrane which is a specialized extracellular matrix (ECM) structure that
serves as a critical structural and functional component in many tissues throughout the body,
particularly in epithelial tissues. It is a thin, sheet-like structure that lies beneath the layer of
epithelial cells and separates them from the underlying connective tissue
Special characteristics of epithelial tissue - avascular by innervated - ANS this tissue lacks
blood vessels, as blood vessels would interfere with their function as barriers
nutrients and oxygen are obtained by diffusion from near blood vessels in the underlying
connective tissue
Special characteristics of epithelial tissue - regeneration - ANS high capacity to regenerate
classification of epithelia - ANS based on cell shape and number of cells
classification of epithelia - number of cells - ANS simple epithelia
stratified epithelia
pseudo stratified epithelia
glandular epithelia
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