Answer:
Los riesgos psicosociales
Explanation:
Los riesgos psicosociales son elementos muy peligrosos a los que todos los que trabajan son vulnerables. Estos riesgos se originan en las organizaciones laborales y se desencadenan a través de situaciones estresantes, que involucran períodos y metas muy difíciles, jefes abusivos, acumulación de tareas, sobrecarga de tareas, entre otros que miden la salud física y mental de los trabajadores, causando problemas emocionales, sociales y biológicos.
En otras palabras, los riesgos psicosociales pueden dañar la salud de los trabajadores, provocar estrés y enfermedades cardiovasculares, respiratorias, inmunológicas, gastrointestinales, dermatológicas, endocrinológicas, musculoesqueléticas y mentales de larga duración.
Answer:
<h3>Most veins carry deoxygenated blood from tissues back to the heart ; exceptions are thw polmunary and umbilical veins,both of which carry oxygenated blood to the heart. It contrast to veins, arteries carry blood away from the heart. </h3>
Answer:
C) Cancellous bone
Explanation:
Bones in the body are composed of 2 types of tissues:
1. Compact bone: <u>Compact bone</u> is also called as <u>cortical bone</u>, a <u>dense bone</u>. It is hard outer layer that is strong, dense and durable. Compact bone makes up almost 80% of adult bone mass.
2. Cancellous bone: The bone contains a network of rod-like structures. They are less dense and more flexible than compact bones.
Option A, B and D belong to one type of bone.
Thus C is the answer
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:
Sneezing is a protective reflex, and is sometimes a sign of various medical condi- tions. Sneezing has been a remarkable sign throughout the history. In Asia and Europe, superstitions regarding sneezing extend through a wide range of races and countries, and it has an ominous significance. Although sneezing is a protective reflex response, little else is known about it.
Explanation:
