Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download SCIENCE STUDY GUIDE
Document related concepts
Transcript
SCIENCE STUDY GUIDE RESPIRATION AND EXCRETION Respiratory System Vocal Cords Produces voice by vibrating. Cords are stretched across the opening of the larynx. Lungs Main organ of the respiratory system Mucus Sticky material that moistens air Diaphragm Large, dome-shaped muscle that aids in breathing Bronchi Part of respiratory system that branches and directs air into the lungs Small flap of tissue that seals the trachea when swallowing Epiglottis Respiration Process of breaking down oxygen and sugar to produce carbon dioxide, water, and energy Alveoli Tiny air sacs in the lungs where gas exchange takes place The role of the respiratory system is Oxygen to bring what substance into the body Where gas exchange occurs in the respiratory system The throat, where air enters after going through the nasal cavities Alveoli Pharynx Excretory System Excretion Body’s process of removing waste from the blood Urine Liquid waste made of water and urea Liver Excretory organ where urea is produced Urinary bladder Sac-like muscular organ where urine is stored Main function of the excretory system To collect and remove wastes from the body You must be able to identify these organs from a drawing. Urinary bladder Kidneys Bronchi pharynx Trachea alveoli urethra ureter lungs diaphragm Nephrons Tiny filtering structures in the kidneys where urine is produced A chemical found in urine that comes from the breakdown of proteins Where water and chemicals are eliminated through sweat, or perspiration Urea Substances produced during respiration Chemical in tobacco smoke that binds to hemoglobin Addictive drug in tobacco smoke Carbon dioxide and water Skin Carbon monoxide Nicotine
