The respiratory tract begins with the mouth or the nose, and then the pharynx, larynx, trachea, bronchus, bronchioles, and then the oxygen exchange occurs in the alveoli.
respiratory bronchiole
Nasal cavity
The Nose/mouth
The very first part of the respiratory tract are the openings into the nasal cavities called the nares.
During the respiratory system, oxygen travels through the respiratory tract and diffuses to the red blood cells from alveoli which receives carbon dioxide from the RBC's. The carbon dioxide comes from cells in the body. When the RBC's travel through the body to transfer oxygen to the cells it receives carbon dioxide. The carbon dioxide enters the alveoli and travels through the respiratory tract and is breathed out.
3 feet
The respiratory system provides oxygen so the body can "burn" (oxidize) the food that is brought into the body through the digestive system. The circulatory system brings nourishment to all cells of the body. The circulatory system exchanges critical gases with the respiratory system; unneeded carbon dioxide is exchanged for much needed oxygen.
the size is less than 2.5 microns.....they can enter our respiratory system easily nd can prove harmful to our lungs....Answer: Particulate matter is generally sized as PM10 and PM2.5 the number indicating its size in microns.PM10 is inhaleable but is generally trapped in the upper lung/nose and can be expelled. PM2.5 is much finer and can travel deeply into the respiratory tract and is not expelled
There are 3 methods.Either through the nervous system or through the endocrine system or both.
Light generally doesn't travel faster through solids than through gases. Sound does, but not light.
endocrine system, excretory system, digestive sytem, respiratory system, etc, This is because blood is the common carrier for all substances to be transported within the body.
It binds to red blood cells, which transport it to the tissues and organs.
The structures of the male reproductive system that sperm do not travel through include Cowpter's gland and the seminal vessel
ok
The same way all other objects in the solar system travel, it will be back in 2061.