BIOS 255 Anatomy & Physiology III
Final Exam Test Bank (2025/2026
Edition) | 110+ Verified Questions with
Comprehensive Answers & Rationales
Which of the following leukocytes aggressively phagocytize bacteria and release antimicrobial
chemicals?
T lymphocytes
Neutrophils
Erythrocytes
Monocytes
Eosinophils
Neutrophils
Which of the following proteins are involved in blood clotting? Select all that apply.
Albumin
Thrombin
Fibrinogen
Hemoglobin
Plasmin
Thrombin & Fibrinogen
Page 1 of 26
,Which of the following substances is not required for the production of red blood cells?
Vitamin B12
Amino acids
Calcium
Iron
Magnesium
Magnesium
During blood centrifugation, which component of blood settles at the bottom of the tube?
Platelets
Buffy coat
Plasma
Leukocytes
Erythrocytes
Erythrocytes
Which organ secretes most of the hormone necessary for the formation of new red blood cells
(RBCs)?
Thymus
Spleen
Kidney
Heart
Red bone marrow
Kidney
Which of the following structures are found in the ventricles and pull on the chordae tendinea
upon contraction, preventing the AV valves from flipping?
Trabeculae carneae
Pectinate muscles
Myocardium
Papillary muscles
Papillary muscles
De-oxygenated blood returning to the heart from the systemic circulation will empty into the
right atrium via which blood vessels? Select all that apply.
Page 2 of 26
, Pulmonary trunk
Superior vena cava
Aorta
Inferior vena cava
Pulmonary veins
Superior vena cava and inferior vena cava
Which of the following structures prevents the backflow of blood from the aorta into the left
ventricle?
Bicuspid valve
Aortic valve
Mitral valve
Tricuspid valve
Pulmonary valve
Aortic valve
Which component of the cardiac conduction system is known as the heart's natural
pacemaker?
AV node
AV Bundle of His
SA node
Purkinje Fibers
SA node
Using the following volumes, calculate the client's cardiac output.
Heart Rate: 70 bpm End diastolic volume: 120 ml End systolic volume: 40 ml Systolic pressure:
124 mmHg Diastolic pressure: 84 mmHg
2.8 L/min
8.4 L/min
5.8 L/min
5.6 L/min
5.6 L/min
Page 3 of 26
Final Exam Test Bank (2025/2026
Edition) | 110+ Verified Questions with
Comprehensive Answers & Rationales
Which of the following leukocytes aggressively phagocytize bacteria and release antimicrobial
chemicals?
T lymphocytes
Neutrophils
Erythrocytes
Monocytes
Eosinophils
Neutrophils
Which of the following proteins are involved in blood clotting? Select all that apply.
Albumin
Thrombin
Fibrinogen
Hemoglobin
Plasmin
Thrombin & Fibrinogen
Page 1 of 26
,Which of the following substances is not required for the production of red blood cells?
Vitamin B12
Amino acids
Calcium
Iron
Magnesium
Magnesium
During blood centrifugation, which component of blood settles at the bottom of the tube?
Platelets
Buffy coat
Plasma
Leukocytes
Erythrocytes
Erythrocytes
Which organ secretes most of the hormone necessary for the formation of new red blood cells
(RBCs)?
Thymus
Spleen
Kidney
Heart
Red bone marrow
Kidney
Which of the following structures are found in the ventricles and pull on the chordae tendinea
upon contraction, preventing the AV valves from flipping?
Trabeculae carneae
Pectinate muscles
Myocardium
Papillary muscles
Papillary muscles
De-oxygenated blood returning to the heart from the systemic circulation will empty into the
right atrium via which blood vessels? Select all that apply.
Page 2 of 26
, Pulmonary trunk
Superior vena cava
Aorta
Inferior vena cava
Pulmonary veins
Superior vena cava and inferior vena cava
Which of the following structures prevents the backflow of blood from the aorta into the left
ventricle?
Bicuspid valve
Aortic valve
Mitral valve
Tricuspid valve
Pulmonary valve
Aortic valve
Which component of the cardiac conduction system is known as the heart's natural
pacemaker?
AV node
AV Bundle of His
SA node
Purkinje Fibers
SA node
Using the following volumes, calculate the client's cardiac output.
Heart Rate: 70 bpm End diastolic volume: 120 ml End systolic volume: 40 ml Systolic pressure:
124 mmHg Diastolic pressure: 84 mmHg
2.8 L/min
8.4 L/min
5.8 L/min
5.6 L/min
5.6 L/min
Page 3 of 26
