What structural features of the lung and the cardiovascular system contribute to effective gas exchange?
The main function of the respiratory system is gaseous exchange. This refers to the process of Oxygen and Carbon Dioxide moving between the lungs and blood. Diffusion occurs when molecules move from an area of high concentration (of that molecule) to an area of low concentration. This occurs during gaseous exchange as the blood the capillaries surrounding the alveoli has a lower oxygen concentration of Oxygen than the air in the alveoli which has just been inhaled.
Both alveoli and capillaries have walls which are only one cell thick and allow gases to diffuse across them.
The same happens with Carbon Dioxide (CO2). The blood in the surrounding capillaries has a higher concentration of CO2 than the inspired air due to it being a waste product of energy production. Therefore CO2 diffuses the other way, from the capillaries, into the alveoli where it can then be exhaled.
To demonstrate the use of Oxygen and Carbon Dioxide in respiration you can look at the amounts of both gases which we inhale and then exhale. The air we breathe contains approximately 21% Oxygen and 0.04% Carbon Dioxide. When we exhale there is approximately 17% Oxygen and 3% Carbon Dioxide. This shows a decrease in Oxygen levels (as it is used in producing energy) and an increase in Carbon Dioxide due to it being a waste product of energy production.
What structural features of the lung and the cardiovascular system contribute to effective gas exchange?
A) what structural features of alveoli make them an ideal place for gas exhange? B) why is mucus present in the trachea? C) what is the specific function of cilia on the walla of the trachea?
In cardiovascular system, 1. what is the function of the system in series? What cardiovascular variables does the series system help to maintain?If the cardiovascular system evolved to only have a series component and not the parallel component, draw and explain how oxygen and carbon dioxide would travel through the body. Consider the heart as a pump. 2. what is the function of the system in parallel? What cardiovascular variables does the parallel system help to maintain? If the cardiovascular...
The respiratory and cardiovascular systems of vertebrate animals work in tandem to transport oxygen to metabolizing tissues and to eliminate carbon dioxide as a waste gas. Which of the following statements accurately describes how these systems interact for gas exchange? The premise of the question is incorrect. The cardiovascular and respiratory systems are completely independently regulated by the body, so that one does not affect the other The rate of oxygen transport by diffusion across the lungs must generally match...
Cardiovascular System: Vessels - Blood Vessels and Hemodynamics – anatomy of blood vessels, capillary exchange, physiology of circulation, control of blood pressure and blood flow, shock and homeostasis, circulatory routes, fetal circulation, general disorders This chapter requires us to understand pressure volume relationships on multiple levels, across the entire circulation. In a paragraph, write about one of these that most intersting or facinating.
1. Use Boyle’s law and the anatomy of a mammal to explain how inhalation and exhalation occurs. 2. What is the difference between external gills and internal gills? What are the advantages/disadvantages of each? 3. Structure determines function: what features are common in different respiratory organs, and how do these features help with gas exchange? 4. What challenges to gas exchange do aquatic animals face? Terrestrial? 5. What is a “countercurrent exchange system”? Explain its role in fish gills. 6.Amphibians...
explain what are the structural features of cholesteryl nonanoate responsible for its liquid crystal properties?
1. please kindly explain in details, what the cardiovascular system and the respiratory system is.
What effects does an adrenergic blocking agent have on the cardiovascular system, the respiratory system, the eyes, the gastrointestinal system, the skin, and the urinary system?
Consider caffeine and acetaminophen: What structural features (functional groups) cause one to move farther than the other on the TLC plate?
2. Respiratory System: Identify: lungs, trachea, diaphragm Questions to answer: -what type of tissue makes up the respiratory system? -why is the trachea made of cartilage? -what is the anatomical location of the lungs and trachea? -what structures are part of the bronchial tree? -where does gas exchange occur in the lung? -what gases are involved in gas exchange? -describe the pressure and volume changes during inspiration and expiration