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Bio 235 Chapter 4 Athabasca with complete verified solutions already graded A+ $16.49   Add to cart

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Bio 235 Chapter 4 Athabasca with complete verified solutions already graded A+

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  • Bio Athabasca

Bio 235 Chapter 4 Athabasca with complete verified solutions already graded A+

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  • October 30, 2024
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  • 2024/2025
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  • Bio Athabasca
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Bio 235 Chapter 4 Athabasca
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Types of tissue - answer 1. Epithelial Tissue
2. Connective Tissue
3. Muscle Tissue
4. Nervous Tissue


Cell junction types - answer gap junctions, tight junctions, desmosomes
and hemidesomoes


tight junctions - answer weblike strands of transmembrane proteins that
fuse together the outer surfaces of adjacent plasma membranes to seal off
passageways between adjacent cells


adherens junctions - answer contain plaque, a dense layer of proteins on
the inside of the plasma membrane that attaches both to membrane
proteins and to microfilaments of the cytoskeleton. Cadherins


Desmosomes - answer cadherins+plaque. keratin. Prevent epidermal
cells from separating


Hemidesmosomes - answer attach epithelial cells to the basement
membrane


gap junctions - answer provide cytoplasmic channels between adjacent
animal cells, connexions

, Epithelial Tissue VS. Connective tissue - answer 1. Epithelial has many
packed cell compare to connective tissue
2. Epithelial cells don't have blood or nerve supply


Structure of Epithelial Tissue - answer 1. Apical(surface) free, may
contains cilia
2. Lateral surface, faces adjacent cells. has, tight junction, adherin
junction, desmosomes and gap junction
3.Basal surface, basement layer


Basement layer - answer area between the epithelium and the underlying
connective tissue


Basement layer made up of - answer 1. Basal Lamina, contains collagen
and lamina
2. Reticular Lamina, contains lamina from fibroblast


avascular - answer no blood vessels


Epithelial divides into two groups - answer 1. covering/lining
2. glandular (secretion)


Arrangement of cell in layer - answer Simple epithelium, single layer of
cell,


Pseudostratified epithelium - answer like simple but more layer


Stratified epithelium - answer 2 layers


simple squamous epithelium - answer single layer of flattened cells


simple cuboidal epithelium - answer secretion and absorption

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