Term
What is the hierarchy of animal structure? |
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Definition
Organism
Organ System
Organ
Tissue
cell |
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Term
What are the four major categories of tissues? |
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Definition
Epithelial
Nerve
Muscle
Connective
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Term
What is characteristic of epithelial tissue? |
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Definition
Covers body surface or lines internal organs and cavities
Protective layer
Surface for secretion, excretion, and absorption
Simple or stratified
Squamos, cuboidal, columnar
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Term
What is the purpose of each type of epithelial tissue?
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Definition
Simple squamous: exchange by diffusion
Simple columnar and cuboidal:Secretion and absorption
Stratified squamous: Resist abrasion |
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Term
What are characteristics of connective tissue?
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Definition
Widely scattered cells in an extracellular matrix composed of two parts, fibers and ground substance
Loose fibers
Used for binding and packing
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Term
What is fibrous connective tissue?
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Definition
Dense connective tissue that is nonelastic and strong
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Term
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Definition
Closely stored cells of fat. Used for insulation, shock absorption, and storage. |
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Term
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Definition
A flexible, strong connective material that is used for support and shape. Is a rubbery gelatinous tissue. |
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Term
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Definition
Matrix
Osteocytes--> Osteoblasts to build
Osteoclasts--> Breakdown
Central canal containing marrow
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Term
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Definition
A connective tissue derived from bone canal, used for transportation of nutrients through the body. |
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Term
What is characteristic of muscle?
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Definition
Contractile bundles
Parallel arrangement
COmposed of Protien
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Term
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Definition
Stratiated(striped), multinucleate, long fibrous, muslces controlled voluntarily. |
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Term
What is a cardiac muscle? |
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Definition
Stratiated
branched cells
Uninucleate
Intercalated discs |
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Term
What are intercalated discs? |
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Definition
Connections between cells that increases electrical impulses of action potential |
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Term
What is characteristic of smooth muscle? |
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Definition
Involutary
Not Stratiated
Hollow organs
Spindle shaped
Uninucleate |
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Term
What are direct and indirect exchange? |
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Definition
Exchange of gases and nutrients in the body
Direct: Straight from environment
Indirect: Relies on system for exchange of gas, nutrients, and nitrogenous waste |
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