I. Complete the following (5)
1) The dome shaped muscle that separates the lungs from the abdomen
moving downward, it creates suction to draw in air and expand the lung.
2) The preferred entrance for outside air into the respiratory system. Hairs
that line the inside wall are part of the air – cleansing system.
3) Contains the vocal chords. It is the place where moving air is breathed in
and creates voice sounds.
4) A tube connecting throat to lungs. This is lined with cilia that removes
dust particles
5) Tube that splits off trachea, one to each lung.
Can anyone answer all the questions!
Answers
1.The diaphragm, located below the lungs, is the major muscle of respiration. It is a large, dome-shaped muscle that contracts rhythmically and continually, and most of the time, involuntarily. Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges.
2.The NASAL CAVITY (nose) is the best entrance for outside air into your respiratory system. The hairs that line the inside wall are part of the air-cleansing system.
3.The LARYNX (voice box) contains your vocal cords. When moving air is breathed in and out, it creates voice sounds.
4.The trachea, or windpipe, is the continuation of the airway below the larynx. The walls of the trachea (TRAY-kee-uh) are strengthened by stiff rings of cartilage to keep it open.
5.The trachea splits into 2 bronchial tubes in your lungs. These are called the left bronchus and right bronchus. The bronchus tubes keep branching off into smaller and smaller tubes called bronchi. The tubes are lined with fine hair-like structures called cilia.
hope it will help u...
Answer:
i can't understand your question