The main structure of epidermis is composed of 4 layers or strata. From bottom to top, these are:
- stratum basale attached to the basement membrane.
- two intermediate layers (stratum spinosum and stratum granulosum), and
- at the top is stratum corneum.
- There is also a 'thick skin' or the fifth stratum present at the feet and palm, known as stratum lucidum. It is present between the stratum corneum and the stratum granulosum.
Stratum basale is the deepest layer attached to the basement. Stratum spinosum makes the skin strong and flexible. Stratum granulosum prevents water loss from the body. Stratum corneum acts as a protective barrier on the outermost side of the skin. Stratum lucidum is made up of dead cells present only in thick skin.
To know more about stratum corneum, here
brainly.com/question/27912774
#SPJ4
<span>Answer:During expiration, the volume of the thorax decreases as the diaphragm rises/relaxes.
In expiration the air gets out of the lungs and it's not occupying as much space in the lungs, so the volume of the thorax will decrease. Meanwhile, the diaphragm can go to his relaxed stage and move </span><span><span>superiorly</span>
</span>
The new substances that are formed during a chemical reaction are called the products. The original substances are called the reactants. For example, when hydrogen gas is added to oxygen gas and ignited, the new substance water is formed. The reactants are hydrogen and oxygen.
-Diane:)
