Name: _____________________ The Digestive System
1). Where does digestion begin? a. in your stomach b. in your mouth c. in your intestines 2). What are enzymes? a. tiny food particles that cannot be digested. b. fruits and vegetables c. chemicals that help break down food 3). What role does saliva play in digestion? a. enzymes in saliva help to break down food b. it coats your stomach with a protective lining. c. it moves food through your intestine. 4). What mashes and cuts food in your mouth? a. saliva b. your teeth c. your tongue 5). What moves food through to your stomach? a. the small intestine b. the esophagus c. the large intestine 6). Where does most of digestion in the small intestine take place? a. in the duodenum b. in the pancreas c. in the liver 7). What is the main role of the large intestine? a. to churn food around with enzymes b. to break down solid food c. to absorb water 8). What organs produce enzymes that help in digestion? a. the pancreas b. the heart and the kidneys c. the eyes and the ears 9). What type of acid breaks down food in your stomach? a. fruit acid b. hypodermic acid c. hydrochloric acid 10). What is the tongue? a. a muscle b. a vein c. an organ
Respiratory System
1). Which of these is not involved in your respiratory system? a. lungs b. skin c. alveoli 2). Air enters your body through: a. the nose and mouth b. the ears and eyes c. the hair 3). What do alveoli collect from the air we breathe? a. hydrogen b. carbon dioxide c. oxygen 4). What is respiration? a. the chemical that breaks down glucose b. breathing air in and out c. the way that plants create glucose 5). When do your lungs inflate? a. when you breathe in b. when you breathe out c. when your hold your breath 6). What carries oxygen from your lungs to the cells that need it? a. skin b. blood c. alveoli 7). When you breathe out, what gas does the body get rid of? a. nitrogen b. carbon dioxide c. carbon monoxide 8). What does respiration produce? a. water, carbon dioxide and energy b. glucose, hydrogen and oxygen c. oxygen and carbon dioxide 9). What happens when you take a breath? a. the ribcage contracts and your diaphragm b. the diaphragm contracts and your ribcage expands c. your lungs fill with carbon dioxide 10). What is glucose? a. a simple sugar that gives you energy b. a type if oxygen that you breathe in c. a gluey substance that lines the lungs
Circulatory System
1). What is responsible for pumping blood through your body? a. the brain b. the heart c. the lungs 2). The heart is a: a. muscle b. bone c. vertebrae 3). What makes up your body’s circulatory system? a. the liver and kidneys b. hair, nails and skin c. the heart, veins and blood 4). What does blood bring to cells? a. oxygen and nutrients b. waste products c. carbon dioxide 5). Where does blood become oxygenated? a. in the brain b. in the heart c. in the lungs 6). What are the three types of blood circulation in your body? a. lower, upper and middle b. coronary, pulmonary and systemic c. bone, muscle and skin 7). What is coronary circulation? a. the circulation of blood within your heart b. the circulation of blood within your lungs c. the circulation of blood in your corneas 8). Systemic circulation requires help from: a. bones and marrow b. ligaments c. arteries and veins 9). What is the superior vena cava? a. a start in outer space b. a blood vessel c. an organ 10). What are arteries? a. blood vessels that move blood away from the heart. b. blood vessels that move blood toward the heart c. capillaries that connect veins
Skeletal System
1). How many bones does an adult human have? a. 106 b. 206 c. 1506 2). The red stuff inside bones is called: a. plasma b. silicon c. marrow 3). The place where 2 bones connect is called a: a. vertex b. joint c. tendon 4). The scientific name for kneecap is the: a. cranium b. femur c. patella 5). One human hand has this many knuckles. a. 5 b. 10 c. 300 6). Bones are made up of: a. cells b. steel c. cheese 7). Another word for a broken bone is a: a. contusion b. laceration c. fracture 8). Doctors use these to see your hands. a. cosmic rays b. gamma rays c. x-rays 9). Children should get plenty of this mineral to help their bones grow. a. calcium b. potassium c. radium 10). Dinosaur bones that have become petrified are made of: a. wood b. stone c. bone
