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murzikaleks [220]
3 years ago
10

You have learned that tape or adhesive bandages must be removed carefully from the skin on patients who are elderly to avoid tea

ring their fragile skin. What accounts for the fragility of their skin?
Biology
1 answer:
garik1379 [7]3 years ago
3 0

Answer:

There are fewer collagen and elastic fibers in the reticular layer of the dermis as we age, contributing to wrinkling and increased susceptibility to tearing of the skin.  

Explanation:

As we age, environmental damage, such as ultraviolet radiation, and decreased ability of our fibroblasts to renew collagen and elastic fibers make our skin thinner and more vulnerable to mechanical trauma.

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A newborn baby dies soon after birth because her diaphragm and rib cage muscles failed to contract and she was unable to breathe
kozerog [31]

Answer:

Troponin

Explanation:

This is a complex of three proteins  (Trop C, I, T) that are responsible for muscle contraction of  the skeletal and cardiac  muscles . its binds with protein tropomysin  to lie in the grove between the actin filaments.  its prevents contraction by blocking  myosin crossbridge  in a relax muscles.Inorder to aid contractions  calcium ions binds with troponin, which leads to confrontational change.This exposes myosin on actin filaments,  leading to formation of crossbridge and therefore contraction of muscles.

Therefore if there is  a mutation in the gene that encoded Troponin, as explained above, calcium ion  will not be able to bind with tropinin, and there will be no exposure of myosin on actin filaments, no binding of  myosin on actin to cause crossbridge, and consequently no  muscle contraction,

Thus the intercoastal  muscle and diaphragm will not contract leading to death of the baby.

8 0
3 years ago
Read 2 more answers
List three ways in which rods and cones differ in structure or function
qwelly [4]

<span>1.       </span>Cones perceive light in color while rods perceive light in black and white.

<span>2.       </span>Rods can perceive dim light, unlike cones. The rods are located at the edges of the eyes. This is why it easier to perceive an image in the dark through the corner of the eyes.

<span>3.       </span>The discs that compose the cones are usually partially open to the surrounding vitreous fluid while those of the rods are closed.


8 0
4 years ago
Performance can be impaired by a fluid-related decrease in body weight of as little as
denis23 [38]
Performance can be impaired by a fluid-related decrease in body weight of as little as 1 percent. Dehydration is assumed to be a major adverse effect associated with rapid loss of body mass and this impairs the level of performance in an individual.
3 0
3 years ago
Allows the cell membrane to engulf large molecules.<br> Diffusion<br> Osmosis<br> Active Transport
Zielflug [23.3K]
Active transport, specifically phagocytosis
8 0
3 years ago
The hormone insulin is produced by what organ in the body?.
fiasKO [112]

Answer:

pancreas

Explanation:

I am 95% sure

8 0
3 years ago
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