Oxygen Haemoglobin Dissociation curve

Oxygen-Haemoglobin Dissociation curve When PO2 is between 60 and 100mmHg. Hemoglobin in 90% or more saturated with O2. When oxygen need  of tissue …

transportation of carbon dioxide

Transportation.of CO2 in blood, 3 main forms- 1. Dissolved CO2 About 7 % CO2 is dissolved  In plasma, reaching the lungs, it diffuses into alveoli 2…

transportation of oxygen

Oxygen Transportation Oxygen transport dissolve.easily in water so only about 3% in dissolve state in blood plasma. Rest of about 97% of oxygen is …

Exchange of gases

Transportation of gases

Transportation of oxygen and carbondioxide in the Blood Via blood  O2, 97% RBC,- oxyhemoglobin 3%plasma/dissolve CO2, 70%  bicarbonate , major mode…

Internal respiration

Internal respiration/ exchange of gases in the body tissues In internal respiration CO2 from the body cells to exchanged for O2 from blood. In tiss…

External respiration

External respiration which occurs in the lungs is the exchange of gases between blood and lungs. Alveoli are sites of gaseous exchange. Oxygen from…

Pulmonary volumes and capacities

Events of pulmonary ventilation can be subdividing amount of air in lungs into - 4 volume 4 capacities Spirometry It is the process of measuring vo…

Negative feedback control of Respiration

Chemical control of Respiration

Respiratory system maintains blood O2 and CO2 concentration and blood qpH. 1. Chemoreceptors a. Peripheral chemoreceptor b. Central chemoreceptor 2…

Regulation of Breathing

Regulation of Breathing/ Neural Regulation Control of Respiration The medulla oblongata is the primary respiratory control center. Structure involv…

muscular control of breathing

Main muscles of respiration are diaphragm and intercostal muscles (muscle between the ribs). The diaphragm is the principle muscle of breathing. Ab…

Mechanism of breathing

1 Atmospheric pressure= 760mmHg Pulmonary ventilation has three phase- 1. Inspiration 2. Expiration 3. Pause Thoracic cavity expands Lung volume in…

Physiology of Respiration

Mechanism of Breathing   1 Atmospheric pressure = 760mmHg Pulmonary ventilation has three phase- 1. Inspiration 2. Expiration 3. Pause Thoracic cav…

Muscles of respiration

Respiratory muscles includes three group; diaphragm, rib cage muscles and, abdominal muscles. Main muscles of respiration are- 1. Diaphragm Diaphragm…

Tracheobronchial Tree

Trachea and two primary bronchi referred as bronchial tree.  Trachea (conducting portion consist) "dead space" air is present in that are…

Function of lungs

Function of Lungs 1. Supplying oxygen to the body by inhaling and carried to cells of the body. 2. Remove carbon dioxide oxide from cells and releas…

right lung vs left lung

Difference between right lungs and left lungs Right lung 1.Position Located on the right side of the respiratory system. 2.Structure Wider and short…

Pleura

Pleura Each lung associated with pleural membrane (consist of close sac of serous membrane, contain serous; pleural fluid). Layers of Pleura Pleura h…

Lungs

Lungs are composed of bronchi, and smaller air passage, alveoli, connective tissue, blood vessels, lymph vessels and nerves. Two lungs one lying on e…