Circulatory System Review (Components Of Blood)

RBCs are responsible for carrying oxygen throughout the body.

Plasma is the liquid portion of blood.

Hemoglobin is a protein in red blood cells that carries oxygen. A blood test can tell how much hemoglobin you have in your blood.

The statement is true because leukocytes, also known as white blood cells, play a crucial role in the body's immune system. They help to defend the body against infections, diseases, and foreign substances by identifying and destroying pathogens. Leukocytes are responsible for the body's inflammatory response, phagocytosis, and the production of antibodies. Their presence and activity are essential for maintaining overall health and protecting the body from various illnesses.

Red blood cells are bi-concave shaped cells that are produced by the bone marrow.

Platelets are disc shaped; primarily function in clotting

Note the bi-concave shape...almost like a donut.

From Wikipedia (Erythrocytes)...
These are red blood cells the most common type of blood cell and the vertebrate organism's principal means of delivering oxygen (O2) to the body tissues via the blood flow through the circulatory system.

They take up oxygen in the lungs or gills and release it while squeezing through the body's capillaries.

These cells' cytoplasm is rich in haemoglobin, an iron-containing biomolecule that can bind oxygen and is responsible for the blood's red color.

In humans, mature red blood cells are flexible biconcave disks that lack a cell nucleus and most organelles. 2.4 million new erythrocytes are produced per second.

The cells develop in the bone marrow and circulate for about 100–120 days in the body before their components are recycled by macrophages.

Each circulation takes about 20 seconds. Approximately a quarter of the cells in the human body are red blood cells.

Red blood cells are made up of water and hemoglobin.

Platelets are tiny cell fragments that are essential for blood clotting. When there is an injury or damage to blood vessels, platelets rush to the site and form a plug to stop bleeding. They release chemicals that attract other platelets and help in the formation of a stable blood clot. Platelets also contain proteins that aid in the repair and healing of damaged tissues. Therefore, platelets play a crucial role in the clotting process and are responsible for preventing excessive bleeding.

The hemoglobin test is almost always done as part of a complete blood count (CBC).

Plasma is the straw colored liquid in blood.

HEMOGLOBIN - Like all proteins, the "blueprint" for hemoglobin exists in DNA (the material that makes up genes). Normally, an individual has four genes that code for the alpha protein, or alpha chain. Two other genes code for the beta chain. (Two additional genes code for the gamma chain in the fetus). The alpha chain and the beta chain are made in precisely equal amounts, despite the differing number of genes. The protein chains join in developing red blood cells, and remain together for the life of the red cell.

straw colored

There are more red blood cells than there are white blood cells.

True, white blood cells are larger than red blood cells.

Red blood cells carry O2 and CO2 through vessels to other parts of the body.

WBCs combat microbes once they enter the body.

Plasma - 92 percent water with some O2, nutrients and waste products.

Platelets are small, colorless cell fragments that play a crucial role in blood clotting. They are formed in the bone marrow and are essential for preventing excessive bleeding by forming clots at the site of injury. Platelets help to seal off damaged blood vessels and promote the formation of a stable blood clot. Unlike red and white blood cells, platelets do not have a nucleus and are much smaller in size. Therefore, the correct answer is platelet.

RBCs are made in the bone marrow.

RBCs typically survive about 120 days.

The answer is 7, seven, 7%, seven percent, 7 percent. This is because blood makes up approximately 7% of a person's total body weight.

The kidney is responsible for cleaning and filtering the blood. It removes waste products, excess water, and toxins from the bloodstream, producing urine as a result. The kidneys play a vital role in maintaining the body's overall balance by regulating electrolytes, pH levels, and blood pressure. The heart pumps blood, the liver processes nutrients, and the bladder stores urine, but it is the kidney that specifically cleans and filters the blood.

The cell on the left is a red blood cell.

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The cell on the left is known as an erythrocyte, which is another term for a red blood cell. Erythrocytes are responsible for transporting oxygen from the lungs to the body's tissues and removing carbon dioxide. They are characterized by their lack of a nucleus and their red color, which is due to the presence of hemoglobin.

The cell on the right is a typical white blood cell, also known as a leukocyte.

The correct answer is...about 25 billion! That is a lot of red blood cells.

There are five types of white blood cells: neutrophils, eosinophils, basophils, monocytes and lymphocytes.

White blood cells are made in the bone marrow and lymph glands.

The red blood cell, also known as an erythrocyte, is the most numerous cell in the body. These cells are responsible for carrying oxygen to all the tissues and organs in the body. They make up about 40-45% of the total blood volume and are constantly being produced and replaced in the bone marrow. White blood cells, on the other hand, are involved in the immune response and are much less numerous than red blood cells.