The diaphragm is essential for the gas exchange process. The diaphragm pumps carbon dioxide out to the lungs and pumps oxygen in the lungs. When the diaphragm relaxes, carbon dioxide releases from the lungs. When the diaphragm contracts, oxygen is pulled into the lungs. (Essentials of Anatomy & Physiology, Chapter 15, 514, 518-521) 3.
Surfactant promotes easy expansion (inhale) of the alveoli and prevents the alveoli from collapsing during exhale. It also reduces the effort needed for the lungs to expand and contract during breathing. Gas exchange within the lungs and body tissues is vital for life to exist. Briefly explain the PROCESS OF gas exchange that occurs in the lung
(P2, M1, D1) TASK TWO: Structure, function and interrelationship of 2 major body system the Respiratory System and Cardiovascular system. P2 The Respiratory System The main function of the respiratory system it transport air into the lungs supplying oxygen in the body blood stream and remove the waste carbon dioxide. The structures of the respiratory system are Mouth, Pharynx, Larynx, Trachea, Bronchi, Bronchioles, Alveoli, and Diaphragm and they are divided into the upper and lower. The two important structures in the respiratory system are the Larynx and lungs. Air enters the respiratory system through the mouth and the noses by breathing were it is warmed and moistened.
-Important Stuff- -The Respiratory system is responsible for absorbing oxygen from the air and removing carbon dioxide from the blood. -Other systems are responsible for distributing oxygen around the body and collecting the carbon dioxide. -The Main Organs: Trachea, Lungs, & the Diaphragm (All protected by the rib cage)
D. How would the resistance of Cari’s airways be affected by excess mucus and fluid in her lung? a. The lung capacity is decreased because the air space is already filled with mucus and fluids therefore she can’t take in enough oxygen. The extra mucus and fluids put extra pressure on the lungs. E. How would Cari’s lung compliance (the effort required to expand the lungs) be altered as her alveoli fill with fluid due to pneumonia?
Water lessens the burden on kidneys and liver by dumping waste. Water helps in preventing constipation in your colon. Water helps dissolve minerals and other nutrients so that they can go throughout the body. Water also carries oxygen through the body as well. They first onset of symptoms of dehydration are craving water, dark yellow urine, followed by a reduction in sweating.
This path will divide into even smaller branches that are known as bronchioles. At the end of the bronchioles are very small air sacs called alveoli. They deflate during exhalation and inflate when you inhale. The gas exchange of oxygen cycles through the lungs and then the blood stream as the walls of the alveoli shares the same walls with capillaries making the exchange of oxygen for carbon dioxide between the two very easy. The oxygen molecules attach to the red blood cells as the red blood cells move towards the heart, as the carbon dioxide is evacuated from the body by the exhale.
External respiration which is also known as breathing refers to the inhalation of oxygen from the air into the lungs and expelling carbon dioxide from the lungs to the air. External respiration is a physical process during which oxygen is taken up by capillaries of lung alveoli and carbon dioxide is released from blood. Respiration occurs through our mouth, nose, trachea, lungs and diaphragm. Oxygen enters the respiratory system through the mouth and the nose. The oxygen then passes through the larynx, and the trachea.
Write the equation for the chemical reaction that occurs for the transposrt of carbon dioxide as bicarbonate ions in blood:__ 3. The three basic steps of respiration are pulmonary ventilation, external respiration and cellular respiration. 4. For inhalation to occur, air pressure in the alveoli must be less than atmospheric pressure; for exhalation to occur, air pressure must be greater than atmospheric pressure. 5.
NAME- IBIFURO SAM-EPELLE CLASS-SS2P SUBJECT-BIOLOGY TECAHER-MRS.SANNI Gas exchange Gas exchange occurs as a result of respiration, when carbon dioxide is excreted and oxygen taken up, and photosynthesis, when oxygen is excreted and carbon dioxide is taken up. The rate of gas exchange is affected by: * the area available for diffusion * the distance over which diffusion occurs * the concentration gradient across the gas exchange surface * the speed with which molecules diffuse through membranes. Efficient gas exchange systems must: * have a large surface area to volume ratio * be thin * have mechanisms for maintaining steep concentration gradients across themselves * be permeable to gases. Single-celled organisms are aquatic and their cell surface membrane has a sufficiently large surface area to volume ratio to act as an efficient gas exchange surface. In larger organisms, permeable, thin, flat structures have all the properties of efficient gas exchange surfaces but need water to prevent their dehydration and give them mechanical support.