Body Systems Review Flashcards
What is the Hierarchy of Structures?
When trillions of specialized animal cells live and work together as part of a larger group of cells that can make up the body of an animal
What are the levels of organization in the body?
- Cellular level heart muscle cell
- Tissue level heart muscle tissue
- Organ level heart
- Organ system level circulatory system
- Organism level deer
What are the levels of organization from largest to smallest?
- Biomes
- Communities
- Populations
- Organisms
- Organ Systems
- Organs
- Tissues
- Cells
- Organelles
- Molecules
- Atoms
Why does our body work?
Because of the interactions that happen between organs and organ systems.
What is an example of our body working because of the interactions that happen between organs and organ systems?
For example, the heart helps to regulate blood flow throughout the body. The blood carries oxygen and nutrients to the cells and carries carbon dioxide and waste away from the cells.
What are tissues when it comes to cells?
A collection of similar cells that perform a specific function.
What are organs when it comes to cells and tissues?
2 or more types of tissue that work together to perform a complex life function.
What are organ systems when it comes to cells, tissues, and organs?
A system of 1 or more organs and structures that work together to perform a major vital body function.
What are the four major types of tissues?
Epithelial, connective, muscle and nerve.
What is an example of an epithelial tissue?
Skin lining of digestive system.
What is a description of an epithelial tissue?
A thin sheet of tightly packed cells that covers body surfaces and lines, internal organs, and body cavities.
What is the function of an epithelial tissue?
Covers body surfaces to protect from dehydration.
What is an example of a connective tissue?
Bone tendons blood.
What is a description of a connective tissue?
Various types of cells and fibres held together by a matrix.
What are the two reasons why we eat? Explain each.
HUNGER –is the physical desire for food.
A person can live only 3-4 weeks without food and only 2-3 days without water. The human body uses food for energy, growth, and body functions. When people are hungry, they begin to feel tired. When the stomach is empty, it contracts – this produces hunger pains that tell you to eat.
APPETITE –is a psychological need for food.
Various factors influence your appetite, especially the sight and smell of food. Taste buds are the sensitive areas of the tongue that identify tastes. Receptors are sensors in the nasal passages.
Give an example of a target audience using the key demographics?
Rice Krispies cereal would be aimed towards children because of the friendly characters that kids can relate to and the catchy jingles.
How is each colour typically used in marketing?
Using colours in marketing might convince consumers to think a certain way or react in a particular manner. Bright, warm colours (reds, oranges, and yellows) stimulate energy and happiness, while cool, subdued colours (blues, greens, and purples) are soothing and calming.
