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:
What that means you letters
Answer:
The correct answer is e. all of the above.
Explanation:
Nurse cells are also called sertoli cells and are located in the seminiferous tubules in the testes. They provide nourishment to the growing sperms by providing nutrients from surrounding cells.
During the development of of sperms they become genetically different from other cells so nurse cells form blood testes barrier to protect them from immune cells.
Nurse cells concentrate the testosterone in seminiferous tubules which is necessary for proper development of sperms. They also secrete inhibin which stop FSH secretion from anterior pituitary therefore regulate the spermatogenesis.
Answer:
The correct answer is 5.
Explanation:
The main layers of the skin are <u>from outside to inside:
</u>
- Epidermis
- Dermis
- Hypodermis
The <u>epidermis</u> can also be divided into <em>5 other layers</em> (<u>form outside to inside</u>):
- Stratum corneum: composed of corneocytes without nucleus
- Stratum lucidum: this stratum is <em>only in palms and soles</em>, and gives them the thick skin appearance
- Stratum granulosum: composed of keratinocytes whose nucleus disappear and left a granulated cytoplasm
- Stratum spinosum: keratinocytes connected via desmosomes
- Stratum basale: keratinocytes connected via hemidesmosomes. Melanocytes and Merckel cells can also be found in this layer.
Answer: please see answer below
Explanation:
The use of the mechanical ventilation should be based on the elderly man's decision after you must have explained the pros and cons of using the mechanical ventilation as reports have shown that in as much that mechanical ventilation can "prolong death", it can also help to revive back his respiratory abilities. if his decision is to use the mechanical ventilation after understanding your explanation, only then can mechanical ventilation be used.
