During exercise, the increased activity of the muscles increases oxygen consumption and production of carbon dioxide. The respiratory system, in conjunction with the cardiovascular system, must adjust to meet these demands. These additional...
When you breathe, you draw oxygen into your lungs and exhale carbon dioxide wastes. While you can exert some control on your breathing rate, the basic process is controlled automatically by your body. The mechanisms that regulate your breathing...
The mechanisms that control respiration are part of an intricately woven system. The two main gases involved in respiration are oxygen and carbon dioxide. In healthy people, respiration is primarily controlled by the level of carbon dioxide...
Oxygen is one of the two major components of Earth's atmosphere, forming approximately 21 percent of air. Humans and other respiring organisms require oxygen to maintain life; even aquatic organisms like fish extract dissolved oxygen that's...
Breathing rate is primarily regulated by neural and chemical mechanisms. Respiration is controlled by spontaneous neural discharge from the brain to nerves that innervate respiratory muscles. The primary respiratory muscle is the diaphragm, which...
The effect exercise has on our breathing rate and pattern is easily experienced, and is something we encounter daily. A dash up some stairs to answer a phone can leave us breathing faster for a few minutes. Although respiration changes during...
Your muscles produce more energy when you exercise, and the circulatory system's activity during exercise enhances the supply of substances your muscles need for energy production. Exercising also increases your body's rate of various chemical...
Your respiratory system maintains homeostasis during exercise by increasing activity in your lungs, respiratory muscles and airways. Exercise increases your body's demand for chemicals needed for energy production and temperature regulation. Your...
Breathing is essential to living. It is a passive process that we often take for granted. Exercise increases our respiration rate. Various factors contribute to the increase in rate including the intensity of the exercise and your fitness level....
You breathe harder and faster when you are active because your body needs more oxygen to fuel working muscles and also needs to rid itself of excess carbon dioxide. An increase in the rate and depth of breathing, or respiration, means you are...
When you exercise, your muscle tissue breaks down nutrients to generate energy. This metabolic process consumes oxygen and produces carbon dioxide as a waste product. Your circulatory system responds to this change by both pumping carbon dioxide...
Your cardiovascular system consists of your lungs, your heart, your blood and your blood vessels, which are responsible for taking in oxygen, transporting it around your body, removing carbon dioxide and exhaling it. The more efficient your...
The heart is a vital organ in the body, and lately, more attention has been given to the importance of its health. Heart rate variability (HRV) can change during rest and during exercise. Recent research shows that exercise can be beneficial in...
Because breathing is largely an unconscious process, it's only when breathing becomes difficult that a person begins to take notice. The earth's atmosphere is 21 percent oxygen, which is enough to support human life until problems arise. When...
Your body is a finely tuned machine, able to do almost anything it is asked to. When you are doing a physical activity, your body must work to make energy to perform the intended movements. Your body responds to an increase in work by making more...
The respiratory system, in coordination with the cardiovascular system, makes it possible for your body to do work. While the heart is responsible for an increase in circulating blood, the lungs are responsible for the increased exchange of carbon...
Many smokers undergo changes to their sensory modalities, with a diminished ability to taste certain foods of flavors perhaps chief among these. Many smokers, however, only become aware of the effect of cigarette smoking on their ability to taste...
Your muscles require up to 100 times the blood flow during exercise than they need at rest, according to Dr. Michael Joyner, one of the principal investigators at Mayo Clinic’s Center for Translation Sciences and Activities. This increased...
Regulation of respiration, or breathing, during exercise is a science to take seriously. Before beginning any type of exercise, warm up. It's beneficial for several reasons, such as increasing the cellular oxygen level of the exercising muscles....
Of the 12 cranial nerves that exit from the brain through openings in the skull, five serve functions having to do with the mouth. Some of these are sensory nerves, which allow the brain to detect sensation in and around the mouth. Some are motor...
All humans, particularly babies and young children, need a certain amount of sleep each night to function normally. Sleep deprivation results in significant functional deficiencies and can, in extreme cases, lead to death. The physiology of sleep...
Just as the human body needs to maintain a constant temperature of around 98.6 degrees Fahrenheit to be healthy, so it also needs to maintain a nearly constant pH, or acidity level, in the blood and body tissues. Most of the body is fairly...
Stair climbers are available in a number of designs. Some use an endless staircase that revolves as you keep pace while others use lever arms that simulate steps. All types of stair climbing machine offer a similarly effective low impact workout,...
The cardiovascular system is a complex part of the body involving the heart, blood vessels and brain. Its job is to respond to stimuli to maintain homeostasis in the body. Several response mechanisms are in place to assure this happens.
Whether you are at rest or exercising, physiological functions must remain within a narrow range for you to survive. Negative feedback loops work to keep physiological parameters such as heart rate within this target range, or homeostatic set...
Every time you take a breath your body performs a highly coordinated ballet of biochemical and muscular actions. When you exercise, billions of biochemical reactions take place in your brain, nervous system, muscles and blood that trigger...
Respiration consists of ventilation--the movement of air in (inspiration) and out (expiration) of the lungs--and gaseous exchange across the alveolar membranes in the lungs. Oxygen is extracted from the air and carbon dioxide removed from the...
Darvocet is the trade name for the medication containing propoxyphene and acetaminophen. Propoxyphene is a mild opiate that is indicated for the treatment of mild to moderate pain, restless leg syndrome and opiate withdrawal. It also works as a...
Coffee is one of the most popular beverages around the world, consumed as a social pastime as well as for its stimulating effects. Some of its desired stimulating effects can also bring with it some unwanted side effects. It increases powerful...
