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Questions and Answers
What are tissues?
What are tissues?
Groups of cells similar in structure that perform a common or related function.
Which of the following are primary tissue types? (Select all that apply)
Which of the following are primary tissue types? (Select all that apply)
- Cartilage
- Muscle (correct)
- Connective (correct)
- Epithelial (correct)
- Nervous (correct)
All body cells operate independently.
All body cells operate independently.
False (B)
What is the function of epithelial tissue?
What is the function of epithelial tissue?
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What does nervous tissue control?
What does nervous tissue control?
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How are tissues organized in the body?
How are tissues organized in the body?
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What is histology?
What is histology?
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What type of tissue contracts to cause movement?
What type of tissue contracts to cause movement?
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Study Notes
Tissue Overview
- Tissues consist of groups of similar cells that perform common or related functions.
- Four primary tissue types: epithelial, connective, muscle, and nervous tissue.
- Epithelial tissue functions to cover surfaces, connective tissue provides support, muscle tissue enables movement, and nervous tissue controls functions.
- Tissue organization forms the structural foundation for organs in the body.
Single-cell vs. Multicellular Organisms
- Unicellular organisms operate independently, while multicellular organisms rely on cell cooperation.
- Each multicellular cell type specializes to maintain homeostasis and benefit overall body function.
- Specialized cells enable complex body functions and can be distinguished based on their roles and appearances.
Tissue Function and Specialization
- Muscle cells, skin cells, and brain cells exhibit distinct characteristics and functions.
- Injury or loss of specialized cells can adversely affect organ function and overall body capabilities.
Organ Structure and Physiology
- Organs are composed of multiple tissue types, typically including all four primary tissue types.
- The arrangement of these tissues dictates the organ's structure and function.
- Histology (the study of tissues) pairs with gross anatomy to enhance understanding of organ physiology.
Muscle Tissue Types
- Skeletal muscle: Attached to bones, enables voluntary movement.
- Cardiac muscle: Found in the heart, responsible for involuntary heart contractions.
- Smooth muscle: Present in the walls of hollow organs, also functions involuntarily.
Epithelial Tissue Functions
- Creates boundaries between different environments, providing protection.
- Involved in secretion, absorption, and filtration processes.
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