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Cells & Body Systems
| Term | Definition |
|---|---|
| Cell | the basic building blocks of life |
| Nucleus | The control center of the cell hat contains the DNA |
| Cell Membrane | a layer on the outside of the cell that holds the cell together |
| Cytoplasm | the jellylike substance that fills the cell membrane |
| Unicellular | an organism that has only one single cell |
| Heart | The hollow, muscular organ that pumps blood through the body of a vertebrate animal by contracting and relaxing. |
| Vein | blood vessels located throughout your body that collect oxygen-poor blood and return it to your heart. |
| Artery | Any of the blood vessels that carry oxygenated blood away from the heart to the body's cells, tissues, and organs. |
| Blood | the fluid that circulates in the heart, arteries, capillaries, and veins of a vertebrate animal carrying nourishment and oxygen to and bringing away waste products from all parts of the body. |
| Blood Vessels | channels that carry blood throughout your body. |
| Transport | the movement of goods and persons from place to place and the various means by which such movement is accomplished. |
| Respiratory System | The organs that are involved in breathing. |
| Nose | Nose- the part of the face or head that contains the nostrils and covers the front or outer part of the nasal cavity |
| Mouth | Mouth- the opening through which food passes into the body of an animal and which in vertebrates is typically surrounded on the outside by the lips and encloses the tongue, gums, and teeth |
| Trachea | is a long, U-shaped tube that connects your larynx (voice box) to your lungs. The trachea is often called the windpipe. It's a key part of your respiratory system. |
| Diaphragm | the major muscle of respiration. |
| Lungs | One of a pair of organs in the chest that supplies the body with oxygen, and removes carbon dioxide from the body. |
| Exchange | the act of giving or taking one thing in return for another |
| Digestive System | The organs that take in food and liquids and break them down into substances that the body can use for energy, growth, and tissue repair. |
| Tongue | the usually movable organ in the floor of the mouth in humans and most vertebrates, functioning in eating, in tasting, and, in humans, in speaking. |
| Esophagus | Your esophagus is a hollow, muscular tube that carries food and liquid from your throat to your stomach. Muscles in your esophagus propel food down to your stomach. |
| Stomach | a muscular organ that digests food. |
| Small Intestine | a long tube-like organ that connects the stomach to the large intestine. |
| Large Intestine | The long, tube-like organ that is connected to the small intestine at one end and the anus at the other. |
| Nervous system | includes the brain, spinal cord, and a complex network of nerves. |
| Brain | The organ inside the head that controls all body functions of a human being. |
| Spinal Cord | a long, tube-like band of tissue. It connects your brain to your lower back. Your spinal cord carries nerve signals from your brain to your body and vice versa. |
| Nerves | A bundle of fibers that receives and sends messages between the body and the brain. |
| Central Nervous System | made up of the brain and spinal cord: |
| Peripheral Nervous System | a network of nerves that runs throughout the head, neck, and body. |
| Muscular System | composed of specialized cells called muscle fibers. |
| Skeletal System | the framework of bones and cartilage that supports and protects the soft tissues and the internal organs of the body. |
Created by:
Rnimbalkar
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