Answer:
The correct answer is B. The mucosa is responsible for absorption and secretion.
Explanation:
The mucosa is the deepest layer of the intestinal tract, surrounding the lumen, or space inside the tube. This layer comes into direct contact with food (or bolus) and is responsible for absorption and secretion, which are important processes in digestion.
The mucosa is highly specialized in each organ of the intestinal tract, facing a low pH in the stomach, absorbing a multitude of different substances in the small intestine and also absorbing specific amounts of water in the large intestine.
Answer:
Taking into account that:
The flow velocity u of a fluid is a vector field
u = u (x, t)
What gives the velocity of a Fluid Plot at position x y time t.
q = || u ||
Now if the flow is continuous as it happens in the blood vessels then:
The flow of a fluid is said to be constant if it does not move over time, that is why the variant would be 0.
Explanation:
As for the pump with narrow vessels, there the area would be less, therefore the flow also and the flow velocity as well. Adding that the friction with the walls increases as it is narrower, thus generating an increase in pressure with the flow of the liquid.
So this is where we have to put emphasis on the biophysics branch that explains the following:
The Venturi effect is explained by the Bernoulli Principle and the principle of continuity of mass. If the flow rate of a fluid is constant but the section decreases, the speed necessarily increases after crossing this section. By the theorem of conservation of mechanical energy, if the kinetic energy increases, the energy determined by the value of pressure necessarily decreases.
Indeed, according to Bernoulli's principle:
P 1 + 21 ρv 12 + ρgh 1 = P 2 + 21 ρv 22 + ρgh 2
I don't know
Answer:
The “lub” is the first heart sound, commonly termed S1, and is caused by turbulence caused by the closure of mitral and tricuspid valves at the start of systole. The second sound,” dub” or S2, is caused by the closure of aortic and pulmonic valves, marking the end of systole.
Exercise should include all four types: endurance, strength, balance, and flexibility, according to research. Each one offers various advantages. The ability to perform one sort can also help you perform the others better, and variation lowers boredom and injury risk.
our breathing and heart rate rise when we engage in endurance exercises, also known as aerobic exercises. we may maintain your health, increase our fitness, and carry out the daily duties we need to undertake with the support of these exercises. The health of our heart, lungs, and circulatory system are all improved by endurance training. Stretching can improve our flexibility.
Moving more freely will make it easier for us to reach down to tie our shoes or look over our shoulder when we back our car out of the driveway. Balance exercises help prevent falls, a common problem in older adults that can have serious consequences. Many lower-body strength exercises also will improve our balance. Strong muscles help us stay independent and make everyday activities feel easier.
Learn more about endurance here-
brainly.com/question/1303431
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