AnaPhys (Respiratory, Digestive, Reproductive)

process by which gas exchange between a living cell and its environment is effected

major functions of the respiratory system

secondary function of respiratory system

where air is drawn into the system

where the air is warmed and moistened and dust particles are filtered out

separates the nasal cavity from the mouth

• funnel-shaped musculomembranous organ • common passageway for food and air

food passage

• flap of tissue that closes when food is swallowed, thus preventing the food from entering the passage to the lungs • opens when a breath is drawn in

• area composed of cartilage structures • contains vocal cords that vibrate when air passes across them, producing a sound

tube that leads to the bronchi

two elastic membranous sacs whose interior is in free communciation with the outside air via a system of passages

• lower end of the trache • tube divides into two branches • leads to the two lungs of the animal

cavity where lungs are located

smaller and smaller branches of bronchus

• where bronchioles terminate • smallest subdivision of the air passages • true respiratory structures where the exchange of gases between the blood stream and the inspired air takes place

upper mandible of birds that opens into the mouth

structure at the lower end of the trachea that allows birds to make sounds

where do the air sacs of birds extend to

what do birds have instead of alveoli

how is breathing accomplished by birds

gas exchange between air of lungs and of the blood

gas exchange between air of blood and tissues

act of bringing air and bloodinto intimate relationship within the lungs