8 Questions
What is a characteristic of all systems?
They are made up of individual parts that work together as a whole.
What is an example of a tissue?
Muscle tissue
What is a group of organs that perform activities that help the body as a whole?
Organ System
Which system consists of the mouth, esophagus, stomach, and small intestine?
Digestive System
What is the function of the circulatory system?
To transport blood, nutrients, and wastes
Which system consists of the brain, spinal cord, and nerves?
Nervous System
What is the function of the respiratory system?
To control breathing and exchange gases
What is the function of the muscular system?
To provide movement and support for the body
Study Notes
Characteristics of Systems
- Made up of individual parts that work together as a whole
- Often connected to one or more systems
- If one part of a system is missing or damaged, the system will not function well or may not function at all
Levels of Organization
- Cells
- Tissues
- Organs
- Organ Systems
- Organisms
Tissues
- Groups of similar cells
- Found in all multicellular organisms
- Examples: Muscle tissue, nerve tissue, epithelial tissue, etc.
Organs
- Groups of tissues
- Made up of two or more types of tissues
- Distinct structures that perform specific functions
- Examples: Lungs, kidneys, heart, etc.
Organ Systems
- A group of organs that perform activities that help the body as a whole
- Examples:
Digestive System
- Consists of: Mouth, Esophagus, Stomach, Small Intestine, Large Intestine, Liver, Gall Bladder, Pancreas
- Function: To take in and break down food, absorb nutrients, and eliminate solid waste
Circulatory System
- Consists of: Heart, Arteries, Veins, Capillaries
- Function: To transport blood, nutrients, gases, and wastes
Nervous System
- Consists of: Brain, Spinal cord, Nerves, Sense organs
- Function: To detect changes in the environment and to signal these changes to the body which then carries out a response
Respiratory System
- Consists of: Nasal cavity, Trachea, Lungs
- Function: To control breathing, and exchange gases in lungs and tissues
Excretory System
- Consists of: Lungs, Kidneys, Urinary bladder
- Function: To remove liquid and gas wastes from the body
Muscular System
- Consists of: Muscle tissue connected to bones throughout the body
- Function: Not specified in the text
This quiz covers the organization of human body cells into tissues, organs, and systems, including the characteristics of systems and levels of organization.
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