0.5-50 microns

The discocyte shape of human RBCs is approximately 7.5 to 8.7 μm in diameter and 1.7 to 2.2 μm in thickness (Figure 1).

DNA molecules are about 2.5 nanometers wide. Most proteins are about 10 nanometers wide, and a typical virus is about 100 nanometers wide. A bacterium is about 1000 nanometers. Human cells, such as red blood cells, are about 10,000 nanometers across.

A typical human RBC has a disk diameter of 6–8 micrometers and a thickness of 2 micrometers, much smaller than most other human cells. These cells have an average volume of about 90 femtoliters (fL) with a surface area of about 136 square micrometers.

The shape of the human red blood cell is known to be a biconcave disk.

Vitamin C is thought to increase the production of white blood cells, which are key to fighting infections. Almost all citrus fruits are high in vitamin C. With such a variety to choose from, it’s easy to add a squeeze of this vitamin to any meal….1. Citrus fruits

• grapefruit.
• oranges.
• clementines.
• tangerines.
• lemons.
• limes.

Monocytes are kidney-shaped cells performs the function of phagocytosis. Although lymphocytes have maximum life span among WBCS. But out of the given options, monocytes have a maximum life span which can be hours to days.

neutrophils

NEURONS

What cells are replaced frequently? The most frequently replaced cells in the human body are the cells that line the stomach walls and intestine. They typically last around five days before regeneration. Skin cells are replaced every two to four weeks.

So-called senescent cells — cells that “retire” and stop dividing but refuse to die — are always present, and they even serve some important functions, such as in wound repair. But in aging organs, these cells don’t get cleared away as they should, and they can clutter up the place.

When a cell cannot be regenerated the body will replace it with stromal connective tissue to maintain tissue/organ function. Stromal cells are the cells that support the parenchymal cells in any organ.

It is true that individual cells have a finite life span, and when they die off they are replaced with new cells. Red blood cells live for about four months, while white blood cells live on average more than a year. Skin cells live about two or three weeks.

The human body is constantly renewing itself. It’s a beautiful idea, when you think about it: You can leave the old you behind and become a completely new person every seven years. Unfortunately, it’s just not true.

The liver is the only organ in the human body that can regenerate.

Inside a Cell A cell consists of a nucleus and cytoplasm and is contained within the cell membrane, which regulates what passes in and out. The nucleus contains chromosomes, which are the cell’s genetic material, and a nucleolus, which produces ribosomes. The endoplasmic reticulum transports materials within the cell.

Cytoplasm consists of the jelly-like cytosol inside the cell, plus the cellular structures suspended in it. In eukaryotes, cytoplasm specifically means the region outside the nucleus but inside the plasma membrane. DNA is the genetic material of the cell.

Antioxidants — such as vitamins C and E and carotenoids, which include beta-carotene, lycopene and lutein — help protect healthy cells from damage caused by free radicals.

In a study published in the British Journal of Cancer (published by the research journal Nature) the researchers show that in laboratory tests, a compound called indole-3-carinol (I3C), found in broccoli, cauliflower and cabbage, and a chemical called genistein, found in soy beans, can increase the levels of BRCA1 and …

Here are 10 healing foods that can help your body recover.

1. Leafy green vegetables.
2. Eggs.
3. Salmon.
4. Berries.
5. Nuts and seeds.
6. Poultry.
7. Organ meats.
8. Cruciferous vegetables.

Antioxidants, such as vitamins C and E and carotenoids, may help protect cells from damage caused by free radicals.

Here are the top 12 healthy foods that are high in antioxidants.

• Artichokes.
• Goji Berries.
• Raspberries.
• Kale.
• Red Cabbage.
• Beans.
• Beets. Beets, also known as beetroot, are the roots of a vegetable scientifically known as Beta vulgaris.
• Spinach. Spinach is one of the most nutritionally dense vegetables.

Vitamin B1 (Thiamine or Thiamin) Vitamin B1, or thiamine, is a vitamin that the body requires for energy metabolism and for cell growth, function, and development.

Broccoli, spinach, carrots and potatoes are all high in antioxidants, and so are artichokes, cabbage, asparagus, avocados, beetroot, radish, lettuce, sweet potatoes, squash, pumpkin, collard greens and kale. Using lots of spices in cooking is good.