Digestive
The muscular tube that carries food from the pharynx to the stomach
esophagus
The tube held open by cartilage rings that carries air to the bronchi
trachea
Blood vessels that carry blood back to the heart
veins
Which accessory organ produces bile?
liver
The muscle that contracts and moves downward during inhalation
diaphragm
The smallest type of blood vessel, where gas exchange occurs
capillary
Finger-like projections in the small intestine that increase surface area for absorption
villi
Another word for inhalation
inspiration
What happens to blood pressure as blood moves from arteries to capillaries?
Blood pressure falls/decreases.
DAILY DOUBLE: The semi-liquid mixture leaving the stomach
chyme
Tiny air sacs in the lungs that are the main site of gas exchange
alveoli
The fluid portion of blood
plasma
Which part of the small intestine receives bile and pancreatic enzymes?
duodenum
Structure that prevents food from entering the trachea
epiglottis
Protein in red blood cells that carries oxygen
hemoglobin
Which sphincter controls movement of food from the stomach to the small intestine?
pyloric sphincter
The part of the brain that controls the basic rhythm of breathing
medulla oblongata
DAILY DOUBLE: Which chamber of the heart pumps oxygenated blood to the body?
left ventricle