Bio 168 Tissues Exam Questions and
Answers 100% Pass
Tissues - ✔✔a group of specialized cells and extracellular material around
them.
Histology - ✔✔microscopic study of tissues
Epithelial tissue characteristics - ✔✔Lacks blood vessels (materials must
move by diffusion from underlying Connective Tissue)
Covers body surface and forms glands
Very little extracellular matrix
Has distinct tissue surfaces (Free (apical), nasal, lateral
Cells connect to surrounding cells and extracellular matrix
High regeneration capacity
1
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,basement membrane - ✔✔Connects basal later to underlying tissues.
Consists of two layers
Made of specialized extracellular material secreted by the epithelial cells
(Collagen, Glycoproteins, proteoglycans)
Supports and guides cells migration during tissue repair
Porous to allow movement of materials to and from the epithelial cells
above.
Epithelial Tissue Functions - ✔✔protection, barrier, secretion, passage of
substances, absorption
Classification of Epithelia Cells - ✔✔Squamous: flat, scare like
Cuboidal: equal in height and width
Columnar: taller than wide
Simple squamous - ✔✔single layer of flat cells
Functions: Diffusion/filtration
2
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, Location: air sacs in lungs, lining of heart, blood and lymphatic vessels
simple cuboidal - ✔✔single layer of cube shaped cells
Function: secretion/absorption
Location: Ducts and secretory portions of small glands, kidney tubules.
simple columnar - ✔✔Single layer of tall cells
Function: ciliated- moves particles, Smooth- absorbs and secretes mucous
and enzymes.
Location: Bronchi, uterine tubes, uterus, digestive tract.
psudostratified columnar - ✔✔Like columnar but irregular shaped.
Function: secretes and moves mucous (with cilia)
Location: Trachea, upper respiratory tract
stratifed squamous - ✔✔multiple layers of flat cells
3
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Answers 100% Pass
Tissues - ✔✔a group of specialized cells and extracellular material around
them.
Histology - ✔✔microscopic study of tissues
Epithelial tissue characteristics - ✔✔Lacks blood vessels (materials must
move by diffusion from underlying Connective Tissue)
Covers body surface and forms glands
Very little extracellular matrix
Has distinct tissue surfaces (Free (apical), nasal, lateral
Cells connect to surrounding cells and extracellular matrix
High regeneration capacity
1
100% Pass Guarantee Katelyn Whitman, All Rights
,basement membrane - ✔✔Connects basal later to underlying tissues.
Consists of two layers
Made of specialized extracellular material secreted by the epithelial cells
(Collagen, Glycoproteins, proteoglycans)
Supports and guides cells migration during tissue repair
Porous to allow movement of materials to and from the epithelial cells
above.
Epithelial Tissue Functions - ✔✔protection, barrier, secretion, passage of
substances, absorption
Classification of Epithelia Cells - ✔✔Squamous: flat, scare like
Cuboidal: equal in height and width
Columnar: taller than wide
Simple squamous - ✔✔single layer of flat cells
Functions: Diffusion/filtration
2
100% Pass Guarantee Katelyn Whitman, All Rights
, Location: air sacs in lungs, lining of heart, blood and lymphatic vessels
simple cuboidal - ✔✔single layer of cube shaped cells
Function: secretion/absorption
Location: Ducts and secretory portions of small glands, kidney tubules.
simple columnar - ✔✔Single layer of tall cells
Function: ciliated- moves particles, Smooth- absorbs and secretes mucous
and enzymes.
Location: Bronchi, uterine tubes, uterus, digestive tract.
psudostratified columnar - ✔✔Like columnar but irregular shaped.
Function: secretes and moves mucous (with cilia)
Location: Trachea, upper respiratory tract
stratifed squamous - ✔✔multiple layers of flat cells
3
100% Pass Guarantee Katelyn Whitman, All Rights
