The Magic School Bus
Flexes its Muscles |
Goes Cellular |
Cell Specialization
Different types of cells may look very different. Their size and shape help them to perform their special roles. The four diagrams below show different types of human cells—nerve cells, a red blood cell, muscle cells, and a fat cell.
Nerve cells--Nerve cells have parts that are very long, which allows them to send messages a long way. The structure of a nerve cell allows the cell to more easily send and receive signals to and from all parts of the body.
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Red blood cells--Red blood cells have simple structures. These cells carry oxygen to all parts of the body as they move in the blood stream. The smooth, round shape of red blood cells allows the cells to flow smoothly through blood vessels
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Muscle cells—Muscle cells help the body move. These cells have a long, thin shape and structures that allow the cells to shorten or lengthen as they contract or relax.
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Fat cells--Fat cells store food until it is needed. These cells have large storage spaces that can expand to hold large amounts of fat.
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The Respiratory System
The respiratory system allows the body to take in oxygen and excrete, or get rid of, waste gases.
The Circulatory System
The Skeletal System
Important Vocabulary
Cell- basic part of a living organisms
Respiratory System- responsible for bringing in oxygen and releasing carbon dioxide: Keys parts- Lungs, Trachea
Circulatory System- heart pumps blood that carries oxygen and nutrients around the body and picks up carbon dioxide for disposal.
Skeletal System- gives our body structure and protects our major organs
The Muscular System—The muscular system is made up of stretchy tissue called muscles. Muscles connect to the skeletal system and help the body move.
The Digestive System—The digestive system is responsible for getting food into the body, getting solid wastes out of the body, and breaking food down into usable parts.
The Nervous System—The nervous system helps the body respond to signals and information from both inside and outside the body.
Respiratory System- responsible for bringing in oxygen and releasing carbon dioxide: Keys parts- Lungs, Trachea
Circulatory System- heart pumps blood that carries oxygen and nutrients around the body and picks up carbon dioxide for disposal.
Skeletal System- gives our body structure and protects our major organs
The Muscular System—The muscular system is made up of stretchy tissue called muscles. Muscles connect to the skeletal system and help the body move.
The Digestive System—The digestive system is responsible for getting food into the body, getting solid wastes out of the body, and breaking food down into usable parts.
The Nervous System—The nervous system helps the body respond to signals and information from both inside and outside the body.
Structures of Living Organisms
5.L.1.1 Explain why some organisms are capable of surviving a single cell while others require many cells that are specialized to survive
5.L.1.2 Compare the major systems of the human body in terms of their functions necessary for life (digestive, respiratory, circulatory, muscular, skeletal, cardiovascular)
5.L.1.2 Compare the major systems of the human body in terms of their functions necessary for life (digestive, respiratory, circulatory, muscular, skeletal, cardiovascular)
Heredity and Genetics
5.L.3.1 Explain why organisms differ from or are similar to their parents based on the characteristics of the organism
5.L.3.2 Give examples of likenesses that are inherited and some that are not
5.L.3.2 Give examples of likenesses that are inherited and some that are not