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7 Sci Unit B Exam
7th Grade Science Unit B
| Question | Answer |
|---|---|
| Name the parts of the respiratory system | nose, trachea, bronchioles, lungs, alveoli and diaphragm |
| How does food travel through digestive system? | From mouth > esophagus > stomach > small and large intestines |
| What is the liver responsible for? | Removing toxins from the blood |
| What do the kidneys do? | Remove metabolic wastes from the blood (breakdown of proteins and extra water) |
| What does your pulse do when you increase activity? | Increases |
| What are the parts of the nervous system? | Touch receptors, brain, motor neurons, sensory neurons and spinal chord |
| What is the digestive system responsible for? | Absorption of nutreints |
| What is hepatitis? | Disease of the liver |
| What is major function of respiratory system? | Absorb Oxygen |
| What are the three wastes produced by the body? | Carbon dioxide, urine and feces |
| What is your pulse? | Number of heart beats per minute |
| How can you reduce resting heart rate? | Exercise regularly |
| What is the hierarchy of organization for the human body? | is the cells combine to make tissues, the tissues combine to make organs, the organs combine to make systems, and systems combine to make organisms |
| What must occur in order for food to be absorbed as nurtients? | Mechanical and chemical breakdown. |
| What three major body systems are negatively impacted by alcohol consumption? | excretory, circulatory, and nervous systems |
| What does alcohol do to brain? | Depresses the part of the brain that controls behavior |
| What usually causes a heart attack? | Coronary arteries are blocked |
| What is one of the main functions of capillaries? | Carry oxygen to every cell of the body |
| What does blood transport throughout the body? | Heat, Oxygen, Carbon Dioxide and Nutrients |
| The hearts beating is responsible for..... | moving blood around the body |
| The heart could be modeled by.. | using a pump |
| Blood from the heart may... | enter lungs or go to body |
| The heart is both a.... | muscle and an organ |
| Are taste buds part of the digestive system? | No |
| What are teeth responsible for? | Major portion of mechanical breakdown of food |
| Where does chemical breakdown of food mostly occur? | Stomach and small intestine |
| Mechanical breakdown of food.... | increases speed of chemical breakdown |
| Nutrients are transported by what to every cell in the body | blood |
| An important function of what system is to transports nutrients to every cell in the body? | Circulatory |
| What makes the sound in the heart? | Closing of the valves |
| What are two common procedures to treat blocked coronary arteries? | Bypass surgery and angioplasty |
| What are some factors of heart disease? | Smoking, high calorie diet, lack of execise |
| What do valves do? | Prevent the backflow of blood in the heart and veins. |
| What system is responsible for the transport of nutrients, oxygen co2 and metabolic wastes throughout the body? | circulatory |
| Describe where the circulation of blood begins and ends. | right atrium, through the tricuspid valve > right ventricle >another valve to pulmonary arteries> lungs. from lungs via the pulmonary veins to left atrium >a valve into left ventricle > aorta >body.>superior/inferior vena cava back to right atrium |
Created by:
isaakray
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