Respiratory System Crossword Puzzle

QUESTIONS LIST:

• lungs : the paired organs in the thoracic cavity where gas exchange takes place between air in the alveoli and blood in the pulmonary capillaries.
• cilia : short structures projecting from a cell and containing bundles of micro-tubules that move a cell through its surroundings or move fluid over the cell's surface.
• mucus : protective secretion of the mucus membranes.
• trachea : one of the tubules forming the respiratory system.
• respiration : the metabolic processes certain organisms obtaining energy from organic molecules.
• bronchi : the passages that branch from the trachea and direct air into the lungs.
• epiglottis : the uppermost cartilage of the larynx; covers the larynx during swallowing
• external respiration : the exchange of gases between the air in the alveoli and the blood in the pulmonary capillaries.
• larynx : voice box-passageway for air moving from pharynx to trachea; contains vocal cords.
• inspiration : inhalation; the intake of air into the lungs
• capillaries : any of the fine branching blood vessels that form a network between the arterioles and venules.
• breathing : passing or able to pass air in and out of the lungs normally.
• nasal cavity : the cavity behind the nose and above the roof of the mouth that filters air and moves mucus and inhaled contaminants outward and away from the lungs.
• alveoli : tiny sacs of lung tissue specialized for the movement of gases between air and blood.