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Circulatory System

Circulatory and Respiratory systems study stack

TermDefinition
nasal cavity hair in the ________ ________ filters air entering the lungs
moistens mucus _______ the air and catches even more dust particles
pharynx air moves here, the area that the back of your mouth where it meets the throat
larynx two folds of tissue known as the vocal cords
trachea carries air from the nose and mouth to the lungs
epiglottis covers entrance to the trachea and prevents food and liquid from entering the lungs
bronchi air moves from the trachea into these two tubes, which in turn lead to the lungs
bronchioles the bronchi split up into these
alveoli the bronchioles keep dividing until they reach these air sacs
diaphragm large muscle at the bottom of the chest cavity
inhalation the diaphragm contracts and the rib cage rises
exhalation the rib cage and the diaphragm relax
cardiac muscle The heart is a ________
Myocardium Muscle layer that produces powerful contractions to move blood through the circulatory system
Septum Wall that separates the right side of the heart from the left side
Left atrium Accepts oxygen-rich blood from the lung
Right atrium Accepts oxygen-poor blood from the body
Valves Control the flow of blood in and out of the heart
Inferior vena cava Brings oxygen-poor blood from the lower body to the right atrium
Left ventricle Pumps oxygen-rich blood to the body
Aorta Carries oxygen-rich blood from the left ventricle to the body
Right ventricle Pumps oxygen-poor blood to the lung
Coronary arteries Branch from the aorta and run through the heart tissue, supplying blood to the heart muscle
Pulmonary circulation When the right side of the heart pumps oxygen-poor blood to the lungs to get oxygenated
Systemic circulation When the left side of the heart pumps oxygen-rich blood to the rest of the body
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