$$\frac{\text{Volume of RBCs}}{\text{Total Blood Volume}} \times 100$$

$$\text{Oxygen-carrying capacity} = \text{Hemoglobin concentration} \times 1.34 \text{ mL O}_2/\text{g Hb}$$

Question 1

Which of the following is NOT a primary function of blood in the human body?

Accepted Answer

Producing hormones for endocrine signaling

Question 2

Blood plasma is primarily responsible for which of the following?

Accepted Answer

Transporting dissolved nutrients, hormones, and waste products

Question 3

Which component of blood is most directly involved in the immune response?

Accepted Answer

Leukocytes

Question 4

A patient with type AB blood can safely receive blood from which of the following types?

Accepted Answer

Any blood type (universal recipient)

Question 5

Which equation best represents the calculation of hematocrit percentage?

Accepted Answer

$$\frac{	ext{Volume of RBCs}}{	ext{Total Blood Volume}} 	imes 100$$

Question 6

Which white blood cell type is primarily responsible for combating parasitic infections?

Accepted Answer

Eosinophils

Question 7

What is the main function of erythrocytes in the circulatory system?

Accepted Answer

Transporting oxygen and carbon dioxide

Question 8

Which process describes how platelets help stop bleeding at a wound site?

Accepted Answer

Platelets aggregate and release chemicals to form a clot

Question 9

A newborn develops hemolytic disease due to Rh incompatibility. Which scenario best explains this?

Accepted Answer

Mother is Rh-negative, baby is Rh-positive, and mother has developed anti-Rh antibodies

Question 10

Which of the following best describes the role of antibodies in blood typing?

Accepted Answer

Antibodies bind to matching antigens on erythrocytes, causing agglutination

Question 11

Which blood cell type is most abundant in human blood?

Accepted Answer

Erythrocytes

Question 12

A patient with anemia is most likely to have a deficiency in which blood component?

Accepted Answer

Erythrocytes

Question 13

Which of the following is a correct sequence for the steps of hemostasis?

Accepted Answer

Vasoconstriction, platelet plug formation, coagulation

Question 14

Which formula correctly calculates the oxygen-carrying capacity of blood?

Accepted Answer

$$	ext{Oxygen-carrying capacity} = 	ext{Hemoglobin concentration} 	imes 1.34 	ext{ mL O}_2/	ext{g Hb}$$

Question 15

Which blood cell type is responsible for producing antibodies?

Accepted Answer

Lymphocytes

Question 16

Which of the following best explains why blood type O is considered the universal donor?

Accepted Answer

Type O blood has no A or B antigens on erythrocytes

Question 17

Which of the following is a function of platelets in the blood?

Accepted Answer

Forming clots to prevent blood loss

Question 18

Which scenario best illustrates the application of Rh factor knowledge in clinical practice?

Accepted Answer

Administering Rh immunoglobulin to an Rh-negative mother during pregnancy

Question 19

Which of the following is a distinguishing feature of monocytes compared to other white blood cells?

Accepted Answer

They are the largest type of leukocyte and differentiate into macrophages

Question 20

Which formula would you use to estimate the total blood volume in an adult?

Accepted Answer

$$	ext{Total Blood Volume} = 	ext{Body Weight (kg)} 	imes 70 	ext{ mL/kg}$$

Blood: Structure, Function, and Components – Study Notes for Anatomy & Physiology

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