Explain why a superficial skin scrape (such as a paper cut) doesn't blood. why don't you bleed when a hair is pulled out?

Biology

2 answers:

aivan3 [116]3 years ago

8 0

Answer:

Because they are avascular.

Explanation:

Superficial skin does not have adequate blood supply so it does not bleed and this is reason why a cut on the superficial skin or when a hair is pulled dose not results in bleeding.

It involves the epidermal part of the skin which is not properly supplied with blood vessels. So any cut or hair pulling from this region has no bleeding.

Genrish500 [490]3 years ago

6 0

<span>
Basically because your skin has several layers to it (see link, below), and the layer that has the blood vessels capable of bleeding in it is further down than a superficial scrape would affect.
</span>

You might be interested in

What is the process by which cells get energy from glucose?

kupik [55]

The correct answer is - A. Photosynthesis.

Through the process of photosynthesis, the plants manage to use the sunlight, and combining it with the nutrients that they have got through their root system, they manage to produce glucose. Then they use the glucose by converting it to energy, which is crucial for their survival and proper growth, especially for their fruits, vegetables, seeds, spores.

This process is only able to occur with enough sunlight at disposal for the plant, and even if there's very small amount of nutrients gathered from the soil or water, the plants are still able to perform this process.

8 0

3 years ago

An amoeba reproduces by splitting itself into two amoebas. This means that the original amoeba dies and its two offspring live o

Naddika [18.5K]

Answer:

If one amoeba dies then two amoeba get born:

at different stages of the generations of the amoeba it changes accordingly and the died amoeba numbers are also change in the given manner :

stages dies born

I 1 2

II $2^{1}$ 4 = $2^{2}$