SLICEresperatory+system+up+i

Respiratory System (Chapter 9) Part 1. Describe structure and function of each of these terms (in great detail...read the pages in the book from 170 to 174) in this order (the pathway of air from the nasal cavities to the lungs). Inserting a picture of your respiratory system would be nice. Nasal cavity Filters warms and moistens air. The nose opens to the nasal cavities. The nasal cavities are narrow canals separated from each other by a septum composed of bone and cartilage Pharynx Is a passageway where pathway for air and food cross. A funnel shaped passageway that connects the nasal and oral cavities to the larynx. Therefore the pharynx which I commonly referred to as the throat has three parts, the nasopharynx where the nasal cavities open above the soft palate; the oropharnyx where the oral cavity opens and the laryngopharynx Glottis The glottis is the space between the vocal chords opening to the larynx. Larynx It is a cartilaginous structure that serves as a passageway for air between the pharynx and the trachea. The larynx can be pictured as a triangular box whose apex, the adams apple is located at the front of the neck.

Trachea Commonly called the windpipe is a tube connecting the larynx to the primary bronchi its walls consist of a connective tissue and smooth muscle reinforced by a c shaped cartilaginous rings.

bronchus the trachea divides into right and left primary bronchi which lead into the right and left lungs the bronchi branch into a few secondary brochi that lso branch until the branches become about 1 mm in diameter and are called bronchioles bronchioles the trachea divides into right and left primary bronchi which lead into the right and left lungs the bronchi branch into a few secondary brochi that lso branch until the branches become about 1 mm in diameter and are called bronchiolesThe bronchi resemble the trachea in structure but the bronchial tubes divide and subdivide their walls become thinner lung the lungs are paired, cone shaped organs that occupy the thoracic cavity, exept for the entral area that contains the trachea, the hear, and esophagus. Diaphragm Dome shaped horizontal sheet of muscle and connective tissue that divides the thoracic cavity from the abdminal cavity also a birth control device consisting of soft rubber or latex cup that fits over the cervix Part 2. Describe the structure and function of alveoli in great detail. (Inserting a picture of an alveolus would be nice.) During an asthma attack, the smooth muscle of the bronchioles contracts, causing bronchiolar constriction and characteristic wheezing. Each bronchiole leads to an elongated sac enclosed by a multitude of air pockets, or sacs, called alveoli the components of bronchiole tree beyond the primary bronchi compose the lungs. Part 3. (p. 178) Describe in great detail how Carbon Dioxide is carried in the blood and how Oxygen is carried in the blood. External respiration refers to the exchange of gases between air in the alveopli and blood in the pulmonary capllaries. Blood in the pulmonary capillaries has a higher Pco2 than atmospheric air, theifrore,cot diffues out of the plasa into the lungs. Most of the co2 is carried in plasma as bicarbonate ions. The act of breathing brings air into your lungs and carbon dioxide from the lungs to outside the body as mentioned previously respiration includes not only the exchange of gases in the lungs but also the exchange of gases in the tissues. Part 4. Describe 4 respiratory disorders of your choice (in great detail). Sinusitis develops when nasal cngestion blocks the tiny openings leading to the sinuses symptoms include postnasal discharge as well as facial pain that worsens when the patien bends formward

Otitis media is an infection of the middle ear, this infection is considered here because it is a complication often seen in children who have a nasal infection. Infection can by why of the auditory tube from the nasopharynx to the middle earf

Tonsillitis occurs when the tonsils become inflamed and enlarged the tonsils in the posterior wll of the nasopharynx afre often called adenoids.