openings of the nasal passages, lined with hair and mucus to trap particles which enter with the air

opening that allows for large quantities of air, used when nasal passage are blocked or during exercise

upper portion of the trachea, contains vocal cords that create our voice

main airway leading down to the lungs, held upon by C-shaped cartilage rings

skeletal muscles between ribs that lift the ribs to expand the thoracic cavity

support, protect & anchor longs in the pleural cavity

made of bone, protect the heart & lungs

which lung has 3 lobes?

Which lung has 2 lobes and a notch to make space for the heart?

the trachea branches to carry air to each lung at the _______

flap of tissue covering the trachea when water or food is swallowed

passage at the back of the throat, shared by the respiratory and digestive system

smaller branches of the airway, transporting air towards/away from the alveoli of the lungs

large skeletal muscle that serves as a boundary between the thoracic and abdominal cavity; its contraction/relaxation changes the volume of the thoracic cavity that allows for inhaling/exhaling

_______ muscle makes up the walls of the respiratory tract

structure at the end of a respiratory bronchiole, contains a cluster of alveoli

tiny blood vessels covering the surface of alveoli like a net, allowing for diffusion of respiratory gases

tiny air sac that expands when filled with gas and allows for diffusion of respiratory gases

lipoprotein secretion that decreases surface tension and facilitates gas exchange