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O 2 AND Athletic Performance
ALVEOLI IN THE LUNG Alveoli are the places where gas exchange occurs in the lung. Why is surface area an important consideration here?
Healthy vs. Cancerous Lungs (What happens when surface area decreases?
The Heart is responsible for movement of deoxygenated blood from the body to the lungs and the movement of oxygenated blood from the lungs to the body.
Gas Transfer at the Alveoli SIMPLE DIFFUSION Concentration gradient needed Oxygen into blood, Carbon Dioxide into lung.
Gas Transfer at the Tissues SIMPLE DIFFUSION Carbon Dioxide to Capillary, Oxygen into cell.
HEMOGLOBIN: Structure There are 250 million hemoglobin molecules on a single RBC!
RED BLOOD CELL LIFE CYCLE
“THE MASTERS” Adaptations?
Pronghorn Adaptations Larger windpipes Lung Size Muscle Cells Heart SELECTION PRESSURES? COST???
Gas Exchange GillsAlveoli. Need O 2 (IN) for cellular respiration to make ATP Need CO 2 (OUT) waste product from cellular respiration Why do.
The Terminal End of the Breathing Tube After oxygen passes into the lungs through the bronchial tubes, it moves into tiny sacs called alveoli Alveoli.
Partial Pressures of O 2 and CO 2 Normal air pressure at sea level 760 mm Hg = 1 atm = kPa airtracheaalveoliartery vein PO
Circulatory System. Functions of the Circulatory System Blood carries oxygen and nutrients to the cells in the body Blood picks up carbon dioxide and.
CARDIOVASCULAR SYSTEM Gas Exchange Group 6. GAS EXCHANGE Gas exchange occurs in the lungs in the alveoli The alveoli are tiny sacs in the lungs that are.
Gas exchange.. Key terms: Gas exchange refers to the exchange of gases, namely oxygen and carbon dioxide and relies on a process called diffusion. Diffusion.
The Respiratory System. KEY CONCEPT The respiratory system exchanges oxygen and carbon dioxide.
Requirements of a Gas Exchange System Mammals. Large Surface Area Alveoli allow a surface area 40x that of the body.
Gas Exchange not just in the lungs. Gas exchange starts in the lungs......but it happens everywhere! The heart and blood vessels make up the cardiovascular.
Circulation and Respiration Basic features –Distribute nutrients throughout body –Remove wastes from cellular activity –Exchange gases Advanced features.
6.4 Gas Exchange.
Today: and F 4/10 no class. M 4/13 class + movie at 7pm in WEL
The Human Respiratory System Trachea Cartilage (C- shaped rings) Bronchiole Bronchus (Plural = Bronchi) Rib Bone External intercostal muscle Internal.
Ch 37 Gas Exchange AP lecture Background information Diffusion Barometric pressure Oxygen in the air.
Gas Exchange (Core) Distinguish between ventilation, gas exchange and cell respiration.
Transport of gases. Mechanism of gas transport Primary function is to obtain oxygen for use by body's cells & eliminate carbon dioxide that cells produce.
Lecture – 5 Dr. Zahoor Ali Shaikh 1. Gas Exchange takes place in alveoli and then at tissue level. Why we are breathing? To provide a continuous.
When you breathe in, air enters your lungs. Inside the lungs are many tiny air sacs called alveoli.
GAS EXCHANGE Lecture – 5 Dr. Zahoor Ali Shaikh 1.
The lungs. Use all of these words to explain how the lungs work: Lungs Trachea Bronchi Bronchioles Alveoli (alveolus) Blood capillaries Now answer.
Movement of gasses and control of breathing. Overview of content How and where gas is exchanged – External Respiration – Gas transport – Internal Respiration.
Learning objectives: 1.Must say what the job of the lungs is and name the main parts 2.Should describe the special features the lungs have to do their.
Gas Exchange. How Does Air Enter Our Bodies? -Trachea -Enters the Bronchial tree -Tubes become increasingly smaller -Final destination: alveoli.
NOTES: THE CIRCULATORY AND RESPIRATORY SYSTEMS What are the functions of the circulatory system? Summarize the path of blood through the heart. What is.
Today: Circulation and Respiration Exam 2 T 4/5 in class (bring cheat sheet) Take-home 2 due 4/5 in class.
The Alveoli Louis Holdcroft & Joel Willams. Adaptations The lungs Alveoli have many adaptations to make it a lot more effective for efficient gas exchange:
Gas Exchange Week 4. Daltons Law The partial pressures of the 4 gases add up to 760mm Hg. Dalton’s Law; in a mixture if gases, the total pressure.
Transport of gases. Regulation of respiration. Mechanism of gas transport Primary function is to obtain oxygen for use by body's cells & eliminate carbon.
Gas exchange internal and external respiration. Know how 02 and C02 transfer from the atmosphere to the working muscles.
30.4 Blood Vessels and Transport Arteries, veins, and capillaries transport blood to all parts of the body.
Gas Exchange By: Jose Posada & Andrés González. Distinguish between ventilation, gas exchange and cell respiration Ventilation : Is the process of inhaling.
The Respiratory System. Process by which O 2 and CO 2 are exchanged between cells, the blood, and air in the lungs = respiration –The human respiratory.
Gas Exchange Topic 6.4. Assessment Statements Distinguish between ventilation, gas exchange and cell respiration Explain the need for a ventilation.
Respiratory System ROLE: To bring oxygen into the body and to get rid of the carbon dioxide from the body.
Biology Journal 2/21/14 What is oxygenated blood? Where could we find it? What is deoxygenated blood? Where could we find it?
Respiratory System Gas Transport. Oxygen and carbon dioxide are carried between the lungs and body cells by the blood These gases can be: 1.Dissolved.
Function of the Respiratory System To bring about the exchange of oxygen and carbon dioxide between the air, the blood, and the tissues.
Biology The development of internal gas exchange surfaces in larger organisms to maintain adequate rates of exchange. Mammals (alveoli, bronchioles, bronchi,
carry blood away from heart usually O 2 rich Pulmonary artery – artery leading from heart to lung (deoxygenated) connective tissue and muscle walls elastic.
The Respiratory System Thinking Questions. What is the main function of the respiratory system?
Gas exchange Mrs. Jackie Maldonado. Respiratory system Composed Trachea- branches into two bronchi Bronchi- branches into many bronchioles Bronchioles-
Alveoli Capillaries Alveoli Capillary Alveoli HIGH O2 Capillary LOW O2 Capillary HIGH O2 Alveoli LOW O2.
Circulatory system Putting it all together. What are the 4 main components of blood?
GAS EXCHANGE (Lecture 5). The ultimate aim of breathing is to provide a continuous supply of fresh O2 by the blood and to constantly remove CO2 from the.
Movement in and out of cells. You need to learn this definition: Diffusion is the net movement of molecules from a region of their higher concentration.
Diffusion is the process by which particles of gases or liquids spread out from an area where there are lots of them to areas where there are fewer of.
External and Internal Respiration. Learning Outcomes: C10 – Analyse internal and external respiration –State location –Describe conditions (ph, temperature)
The Breath of Life Respiration Most organisms on Earth are aerobic. Meaning, they require oxygen to survive. Most organisms on Earth are aerobic. Meaning,
IB Biology Gas Exchange IB Biology Ventilation, gas exchange and cell respiration. 1. Ventilation: The flow of air in and out of the.
Bellwork 1.Which blood vessels (all sizes) deliver blood to the lungs from the heart? Which take blood back to the heart from the lungs (all sizes)? 2.What.
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