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The amount of O2 inspired would be the same as CO2 expired only if the individual were burning strictly carbohydrates (1:1 respiratory coefficient). Respiratory coefficient= CO2 eliminated per O2 consumed. Because animals also burn fats and proteins, there is no longer a 1:1 ratio because these energy sources have greater O2 consumption vs CO2 production (0.7:1 for fats). Therefore, the decreased CO2 production will cause the expiratory V to be less than the inspiratory V.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoname expiratory and inspiratory muscles
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What two muscles contreol breathing?
The diaphragm is one. the other is chest(ribs) let's do better than that. There are many more than two. The diaphragm is inspiratory, its contraction sucks the air in.its antagonist is the abdominal wall - the "abs" - it is expiratory. there are three sets, one set, the external intercostal muscles lifts the ribs, inspiratory, the inernal intercostal is mostly expiratory and the transversis thoracis is expiratory. It brings the ribs back down. Let's not forget the muscles of the neck that raise the clavicle and the upper rib. This brings in a small amount of air. there is a good article in http://www.yorku.ca/earmstro/journey/respiration.HTML and another for breathing in sport in http://www.aikiU.org
How do the respiratory system regulate our oxygen and carbon dioxide exchange?
breathing is regulated by the respiratory control centre (RCC) which detects signals from the chemoreceptors and proprioceptors, the RCC then sends a signal to the inspiratory centre and the expiratory control centre to either contract the external intercostal muscles and phrenic nerves to breathe out or relax the internal intercostal muscles and abs to breathe in.
What are the inspiratory muscles?
(1) lung failure Þ gas exchange failure manifested by hypoxemia(2) pump failure Þ ventilatory failure manifested by hypercapnia Þ fatigue, central depression, mechanical defect
What is the difference between abdominal muscles and intestinal muscles?
I'm no expert but one difference is your external abdominal muscles are voluntary and intestinal muscles are involuntary.
What is the difference between human white muscles and dark muscles?
nothing
What is the difference between core and joint muscles?
Core muscles are in your core joint muscles are in your arms and legs
What is the deep muscle of the thorax that promotes the inspiratory phase of breathing?
The deep muscles of the thorax that promote inhaling are known as the diaphragm muscles. These are the muscles that are activated when a person has good posture and takes a deep breath.
What is the difference between your face muscles and your other muscles?
Most other muscles are larger and all are located below the human head.
What is the difference between animals muscles with endoskeletons and exoskeleton?
In animals with endoskeletons, muscles surround the skeleton. In animals with exoskeletons,the skeleton surrounds the muscles.
What is the difference between voluntary and involuntary muscles and why do you need both?
voluntary muscles are muscles that work when you make them. involuntary are muscles that just go when you don't think about.
How do humans respire?
In a part of our brain called medulla oblongata, there is a respiratory centre which consists of a inspiratory centre, expiratory centre and pneumotaxic higher controller. The inspiratory centre generates basal ramp signal to the main respiratory muscle of our body which is our diaphragm to contract. Expiration occurs without any neuronal intervention via elastic recoil of our longs and it occurs after the Hering-Breuer Reflex(cessation of inspiratory signal upon detection by stretch receptors). So,that's the physiology part...below is what should be covered within the domain of Biology. INSPIRATION Outer Intercostal Muscle contracts Inner Intercostal Muscle relaxes Diaphragm contracts Thoracic Volume increases Rib cage moves forward and upward Intra-thoracic pressure decreases For EXPIRATION, the opposite occurs Note that there are other muscles involved in breathing as well and these muscles can be classified as primary, accessory and airway respiratory muscles. Primary - Intercostal Muscles, Diaphragm Accessory(commonly used during strenuous exercise, Asthma or other respiratory illness)- sternoceidomastoid muscle, pectoralis major, quadratus lumborum and more. Airway(people who snores a lot have inactivity in this muscles during sleep) - Laryngeal, Pharyngeal and genioglossus.
Deep muscle of the thorax that promote the inspiratory phase of breathing?
The deep thorax muscles are the deep muscles of the thorax that promotes the inspiratory phase of breathing. When breathing the diaphragm contracts, producing a negative pressure, which forces are into the lungs.
