The Cardiovascular System: Blood

What is the normal percentage of erythrocytes in a blood sample, a value also known as the hematocrit?

What is the most significant function of the plasma protein albumin?

Which of the following is a key structural characteristic of mature, circulating erythrocytes (red blood cells)?

What is the normal range for hematocrit values in females?

The thin, pale layer known as the 'buffy coat' that appears in a centrifuged blood sample is composed of which elements?

A person with type A blood possesses which specific combination of antigens on their erythrocytes and antibodies in their plasma?

What is the average blood volume for an adult male?

Which leukocyte is the most abundant in the bloodstream and is characterized by a multi-lobed nucleus and effectiveness against bacteria?

Which of the three major plasma proteins is produced by the liver and is essential for blood clotting?

Hemolytic disease of the newborn is a significant risk during a subsequent pregnancy under which specific condition?

What is the normal pH range of blood in a healthy person, indicating it is slightly alkaline?

Which type of agranular leukocyte is the largest, features a large, U-shaped nucleus, and differentiates into a macrophage after leaving the bloodstream?

Unlike most plasma proteins which are made in the liver, gamma globulins (antibodies) are produced by which type of specialized cells?

Eosinophils, a type of granular leukocyte, have a nucleus that is typically bilobed and are most effective in responding to what kind of threat?

According to the summary table of formed elements, what is the approximate average number of platelets per microliter (cubic millimeter) of blood?

The clumping of red blood cells that occurs when incompatible blood types are mixed is known as what process?

A person with blood type O is considered a universal donor primarily because their red blood cells have what characteristic?

Plasma proteins, such as albumin, globulins, and fibrinogen, constitute what percentage of the plasma volume?

Which leukocyte is the least common in a healthy individual and contains granules packed with histamine, which promotes inflammation?

The biconcave disk shape of an erythrocyte is functionally significant because it provides what advantage?

Of the plasma proteins, which group is the most abundant, accounting for approximately 54 percent of the total plasma protein content?

Which of the following blood characteristics is accurate?

According to the summary table, what is the approximate lifespan of a circulating erythrocyte?

Thrombocytes, which are small, purple-staining cell fragments involved in clotting, are more commonly known as what?

What is the primary function of leukocytes as a group?

A person with type AB blood has which of the following characteristics regarding antigens and antibodies?

The transport of nutrients from the digestive tract, oxygen from the lungs, and hormones from endocrine glands are all examples of which primary function of blood?

Which type of leukocyte interacts strongly with the acidic dye eosin, has a bilobed nucleus, and its granules stain a bright red-orange color?

What is the approximate percentage of water in blood plasma?

Leukocytes are classified into two main groups, granular and agranular, based on what characteristic?

According to the summary table, which leukocyte has an average count of 2185 per microliter and is characterized by a large, dark-staining nucleus surrounded by a thin crescent of cytoplasm?

Which condition is characterized by an inadequate production of clotting factors, leading to prolonged bleeding?

What is the primary substance transported by hemoglobin within red blood cells?

A patient is experiencing severe, persistent allergy symptoms. An increased activity of which leukocyte would be expected, as it is involved in allergic reactions and releases histamine?

Blood is considered a type of connective tissue because it consists of what two components?

What makes the extracellular matrix of blood, the plasma, unique among connective tissues?

What is the clinical term for red blood cells?

Which of the following plasma proteins is NOT produced by the liver?

The process by which leukocytes squeeze through adjacent cells in a blood vessel wall to reach tissues is called what?

What is the approximate percentage of whole blood that is composed of plasma?

Which formed element is described as an abundant, granular leukocyte that is especially effective against bacteria?

What is the approximate normal value for the total number of leukocytes in a microliter of blood?

The term 'formed elements' refers to which components of blood?

Which globulins are primarily responsible for transporting iron, lipids, and fat-soluble vitamins?

What is the primary reason it would be incorrect to refer to all formed elements as 'cells'?

According to the summary data, what is the approximate number of erythrocytes per microliter of blood?

Which statement about the ABO blood group system is correct?

The maintenance of body temperature, regulation of pH, and control of water content in cells are all part of which overarching function of blood?

Which statement accurately describes the Rh blood group system?

What is the primary function of lymphocytes, a type of agranular leukocyte?