Subkingdom "Diploblasta" Phylum Cnidaria Flashcards
What is a “Diploblast?”
Paraphyletic group that is a stepping stone between parazoa and triploblastic animals
Subkingdom “Diploblasta” is also which phylum?
Phylum Cnidaria
Name the classes in the Subkingdom “Diploblasta”
Class Anthozoa
Class Scyphozoa
Class Cubozoa
Class Hydrozoa
What lines the spaces inside and out and acts like a barrier for the organism and the environment?
Epithelia
What are the parts of the spithelium?
Basal lamina (basal membrane) Apical end (Space touching cavity) Junctions (Tight, gap, desmosomes)
State the importance of the epithelia
They concentrate acids in one spot and they have unique pockets that can perform different functions.
How do you classify epithelia?
By number of layers and shape of the cells
What does simple columnar epithelium look like?
A one layer, tall shaped tissue
What is are the functions of a simple columnar epithelium?
The active transport of LARGE particles through phagocytosis.
Give an example of a simple columnar epithelium
Lining of the gut
Simple cuboidal epithelium looks like?
Small, cube shaped one layer of tissue
What is the function of simple cuboidal epithelium?
The active transport of MEDIUM to LARGE molecules
Liver cells are an example of what type of epithelia?
Simple cuboidal epithelium
A one layer, flat layer of tissue is?
Simple squamous epithelium
What layer of epithelia diffuses very small molecules like O2 gas?
Simple squamous epithelium
How does simple squamous epithelium function?
Diffusion of very SMALL molecules like CO2 and O2
Lining of blood vessels and lungs is what type of epithelia?
Simple squamous epithelia.
Stratified squamous epithelium looks like?
Two plus flat layers of tissue
What protects from abrasion and desiccation?
Stratified squamous epithelium
A pseudostratified columnar epithelium looks like?
One layer of different length tissues
What allows the expansion of organs?
pseudostratified columnar epithelia
Give an example of pseudostratified columnar epithelium
Urinary bladder
