Human Cardiac and Respiratory
Explain how each of the structures in the respiratory system are adapted to help in the process of ventilation
The human respiratory system is made up of a number of different organs that supply oxygen to the circulatory system for all cells the cells in our body. It also aids in removing carbon dioxide from inside our bodies. The respiratory system structure that keeps us alive starts from the nose extending in a downwards direction towards our lungs, which are divided into the upper respiratory tract that consists of the nose, nasal passages, pharynx (throat) and the larynx (voice box), trachea (wind pipe) and the lower respiratory tract that is composed of the bronchi and bronchioles (airways) and the lungs, alveoli (air sacs), ribs, diaphragm and pleural cavity.
Wexner Medical Center. (2013). Anatomy of Respiratory System. Available: http://medicalcenter.osu.edu/patientcare/healthcare_services/lung_diseases/about/anatomy/Pages/index.aspx. Last accessed 12/02/2013.
The structure of the nose is divided into two sections: external and internal. The external section of the nose is the visible part we see on the face and its structure is made up of frontal bone, nasal bones, and maxillae which form the bony framework. The hyaline cartilage which consists of a septal nasal cartilage, lateral nasal cartilages and the alar cartilages secreted with muscle and skin and coated by a mucous membrane. The interior section (internal nose) covered by the external section has three functions: (1) warming, moistening, and ﬁltering incoming air; (2) detecting olfactory stimuli; and (3) modifying speech vibrations as they pass through the large, hollow resonating chambers.
The nose is used for breathing air in and out of our body and it is the only part that is visible externally in the respiratory system. The first stages of air entry into the respiratory system start from the nose which is split into two passages called left and right...