EXERCISE
The wall of the trachea (windpipe) and bronchi of man is furnished with a series of incomplete……
a) cartilaginous plates
b) chitineous rings
c) cartilaginous rings
d) muscular rings
Explanation: These rings are C-shaped and support the trachea but also allow it to move and flex
What does not happen during inspiration in man?
a) intercoastal muscles contact
b) ribs are elevated
c) diaphragm becomes dome-shaped
d) ribs move forward
Explanation: diaphragm becomes flat during inspiration
The lateral walls of the chest cavity of man are composed of the……..
a) ribs
b) intercostals muscles
c) ribs and intercostals muscles
d) ribs, intercostals muscles and diaphragm
When the human blood leaves the capillary bed of the tissue, most of the carbon dioxide is in the form …….
a) carbonc acid
b) bicarbonate ions
c) carboxylic acid
d) none of them
Which sequence of organs is correct in air passageway of man?
a) nasal cavities, larynx, pharynx, trachea, bronchi
b) nasal cavities, pharynx, trachea, larynx, bronchi
c) nasal cavities, pharynx, larynx, bronchi, trachea
d) nasal cavities, pharynx, larynx, trachea, bronchi
