Respiratory System
This muscle below the lungs helps you breathe by contracting and relaxing.
What is the diaphragm?
These organs filter blood and produce urine.
What are the kidneys?
This muscular tube moves food from the mouth to the stomach using peristalsis.
What is the esophagus?
These tiny blood vessels are the site of exchange of gases, nutrients, and wastes.
What are capillaries?
This molecule in red blood cells binds oxygen.
What is hemoglobin?
These tiny air sacs in the lungs are where oxygen and carbon dioxide are exchanged.
What are alveoli?
This tube carries urine from the kidneys to the bladder.
What are the ureters?
This organ is where most chemical digestion and nutrient absorption occur?
What is the small intestine?
This chamber of the heart pumps oxygenated blood to the body through the aorta.
What is the left ventricle?
The respiratory and urinary systems work together to regulate this important property of blood.
What is pH
This tube carries air from the throat into the lungs and is also called the windpipe.
What is the trachea?
This microscopic structure in the kidney filters blood and forms urine.
What is a nephron?
These finger-like projections increase surface area for nutrient absorption in the small intestine.
What are villi?
This protein in red blood cells binds oxygen and helps transport it throughout the body.
What is hemoglobin?
Cellular respiration uses oxygen to produce this main energy molecule for body functions.
What is ATP?
This gas is removed from the body during exhalation as a waste product of cellular respiration.
What is carbon dioxide?
This process removes waste and extra water from the blood in the kidneys.
What is filtration?
This substance, produced by the liver and stored in the gallbladder, helps emulsify fats.
What is bile?
This large artery carries oxygenated blood from the left ventricle to the rest of the body.
What is the aorta?
If homeostasis fails, body systems can no longer maintain stable internal conditions, leading to this overall outcome.
What is organ failure?
This structure closes over the trachea during swallowing to prevent choking.
What is the epiglottis?
This blood vessel carries filtered blood away from the kidney.
What is the renal vein?
This enzyme in saliva begins the chemical digestion of carbohydrates.
What is amylase?
This condition occurs when fatty deposits build up in artery walls, narrowing them and reducing blood flow, which can lead to heart attacks.
What is atherosclerosis?
When the body’s cells cannot get enough oxygen, they switch from aerobic to anaerobic respiration, producing this compound that can build up in muscles and blood, lowering pH.
What is lactic acid?