Deoxygenated blood returns to the heart, where it enters the right atrium through the <span>superior and inferior vena cava. It then goes to the right ventricle through the tricuspid valve, after which it is pumped to the pulmonary artery through the pulmonary valve. The pulmonary valve splits in two and is connected to the lungs, where the blood is pushed through capillaries in the lungs and is oxygenated and drops CO2. It then goes into the pulmonary vein and goes into the left atrium of the heart, after which it enters the left atrium, then goes through the mitral valve to the left ventricle, where it is pumped into the aorta through the aortic valve and distributed throughout the body, becoming deoxygenated and completing the cycle.</span>
There are 3 Oxygen atoms bonded to 1 Nitrogen atom.
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-Payshence
Answer:
The <u>PCO₂</u> -carbon dioxide partial pressure- in the alveoli is 40 mm Hg and that of the blood entering the pulmonary capillaries is <u>45 mmHg</u>. This causes <u>carbon dioxide</u> to diffuse down its partial pressure gradient from the blood into the alveoli.
Explanation:
Gas exchange is a physiological process that involves the entry of oxygen into the body and tissues and the exit of carbon dioxide, a product of metabolic reactions.
At the pulmonary level, gas exchange occurs between the alveoli and the alveolar capillary, and the diffusion of gases across the alveolar-capillary barrier is dependent on a pressure gradient due to the partial pressure of gases.
In the case of CO₂ the diffusion goes from where the partial pressure is higher to where it is lower, i.e. <u>from the alveolar capillary, where the PCO₂ is 45 mmHg, to the pulmonary alveolus, where the PCO₂ is 40 mmHg</u>.
Learn more:
Gas exchange brainly.com/question/4469204
Answer: thalamus
n one, a neuron works with a sensory receptor, a cell, or cell process that is ... In most cases, the correct stimulus impinging on a sensory receptor will drive .the brain can carry two signals at once, ... "We found that there are periods of time when a given neuron responds to one stimulus ... Our brains are capable of processing multiple stimuli at once -- such as ... "Our working memory system is quite limited
Explanation:
