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:
A) Acetylcholine is released to initiate in the alimentary canal.
Explanation:
Food is our fuel, and its nutrients give our bodies' cells the energy and substances they need to work. But before food can do that, it must be digested into small pieces the body can absorb and use.
The first step in the digestive process happens before we even taste food. Just by smelling that homemade apple pie or thinking about how delicious that ripe tomato is going to be, you start salivating — and the digestive process begins in preparation for that first bite.
The best treatment for an acute thigh contusion is to wrap your thigh with a wet bandage to insulate skin. This is important because, you could become more injured if you didn't do proper steps to the healing process.
Since 1980, social marketing activities have been used to increase awareness on skin cancer prevention among Australians in an effort to solve this issue.
<h3>What causes the first signs of skin cancer?</h3>
a large area of brown with darker color flecks. a mole that is irregular in shape, size, texture, nor color. a tiny lesion that is red, pink, white, blue, and blue-black in some areas, with an uneven border. any lesion that hurts, itches, or burns
<h3>When skin cancer spreads, where does it generally start?</h3>
The tendency of melanoma and other cancer forms to migrate into adjacent lymph nodes first before entering the circulation and moving to distant parts of the body has long been recognized by medical professionals.
To know more about skin cancer visit:
brainly.com/question/25686651
#SPJ4
Answer:
The correct answer is D.
Explanation:
Papillary muscles, attached via chordae tendineae, help to close the valves and prevent regurgitation.
Pectinate muscles are parallel ridges in the walls of the atrium of the heart, mainly in right atrium. They can stretch during adverse loading conditions, to <em>help the right atrium to dilate without much wall stres</em>s.
