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Toni-Ann Brown

Study Stack 2 Physiology-FINALS

Questions/TermsAnswers/Definition
PULMONARY VENTILATION The movement of air in and out of the lungs during breathing.
Tidal Volume (TV) The amount of air inhaled or exhaled during a normal breath.
Which vessels allow gas exchange between blood and tissues? Capillaries
The enzyme that begins carbohydrate digestion in the mouth is ________. salivary amylase
The ________ circuit pumps deoxygenated blood to the lungs for gas exchange. pulmonary
Cardiac Output The volume of blood the heart pumps per minute (heart rate × stroke volume).
What structure is responsible for preventing food from entering the trachea during swallowing? The epiglottis.
A patient has extremely high CO₂ levels after an asthma attack. Which chemoreceptors trigger increased breathing? Central chemoreceptors in the medulla.
Peristalsis Wave-like muscular contractions that push food through the GI tract.
Which organ filters and adjusts nutrient-rich blood from the small intestine before it enters circulation? The liver.
The functional units of the kidneys responsible for urine formation are called ________. nephrons
Alveoli Tiny air sacs in the lungs where gas exchange occurs.
What is the main function of the large intestine? Water and electrolyte absorption, and feces formation.
Blood pressure is highest in the ________ and lowest in the ________. arteries; veins
Diffusion Movement of molecules from an area of higher concentration to lower concentration.
The pancreas releases ________ to neutralize stomach acid entering the small intestine. bicarbonate
External respiration Gas exchange between alveoli and pulmonary capillaries.
Vital Capacity (VC) The maximum amount of air a person can exhale after a maximum inhalation.
Created by: Osharule
 

 



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