Circulatory System
What is the main organ of the circulatory system?
The heart
What is the main function of the respiratory system?
Breathing - to take in oxygen and remove carbon dioxide
What is the first step in digestion?
Chewing food in the mouth
What is the control center of the nervous system?
the brain
What are the three types of muscles in the body?
Skeletal, smooth, cardiac
What are the three types of blood vessels?
Arteries, Veins, Capillaries
What are the tiny air sacs in the lungs called?
Alveoli
What organ produces bile to help break down fats?
The liver
What are the cells called that send messages throughout the body?
Neurons
What type of muscle is found only in the heart?
Cardiac Muscle
What is the function of red blood cells?
To carry oxygen throughout the body
What muscle below the lungs helps with breathing?
The diaphragm
What is the name of the long, coiled tube where most digestion and nutrient absorption happens?
the small intestine
What is the name of the automatic response that doesn’t require thinking, like pulling your hand away from something hot?
a reflex
What is the name of the protein that helps muscles contract?
Actin and myosin
What is the name of the condition where plaque builds up in the arteries?
Atherosclerosis
What is the name of the tube that carries air to the lungs?
The trachea
What is the condition where stomach acid flows back into the esophagus?
acid reflux or GERD
What part of the brain controls balance and coordination?
the cerebellum
What is the condition where muscles become weak or tired due to overuse?
Muscle fatigue
What is the liquid part of blood called?
Plasma
What is the condition where airways become inflamed and narrow, making it hard to breathe?
Asthma
What is the process of removing waste from the body called?
Excretion
What is the condition where the brain’s electrical activity becomes abnormal, causing seizures?
epilepsy
What is the name of the injury where a muscle is stretched or torn?
a strain