EME 105 Palomar
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
Elaborated 100% Correct Complete Solutions
Guaranteed Pass First Attempt!! Current Update!!
1. Which is the most muscular chamber of the heart?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
Rationale: The left ventricle pumps blood to the entire body against high systemic
pressure, so its wall is the thickest.
2. Through which chamber does deoxygenated blood enter the heart?
A. Left atrium
B. Left ventricle
C. Right atrium
D. Right ventricle
Rationale: The superior and inferior vena cava return deoxygenated blood from
the body to the right atrium.
3. Through which valve does deoxygenated blood leave the right ventricle?
A. Aortic
B. Mitral
,C. Tricuspid
D. Pulmonary
Rationale: The pulmonary valve opens into the pulmonary artery, sending blood to
the lungs for oxygenation.
4. The superior chambers of the heart are the:
A. Ventricles
B. Atria
C. Valves
D. Septa
Rationale: The atria are the upper receiving chambers, and the ventricles are the
lower pumping chambers.
5. What is the pressure felt against the arterial walls during the heart's
contraction?
A. Diastolic
B. Systolic
C. Pulse pressure
D. Mean arterial pressure
Rationale: Systolic pressure is the peak force on the arteries as the ventricles
contract. Diastolic pressure is the pressure while the heart relaxes.
6. Which bone is located in the upper arm?
A. Radius
B. Ulna
C. Humerus
D. Clavicle
,Rationale: The humerus is the single long bone between the shoulder and elbow.
7. Which is the longest and strongest bone in the human body?
A. Tibia
B. Humerus
C. Femur
D. Fibula
Rationale: The femur (thigh bone) is the longest and strongest bone. Femur
fractures can cause significant blood loss.
8. Where does the exchange of oxygen and carbon dioxide occur, at the ends of
the bronchioles in clusters resembling grapes?
A. Trachea
B. Bronchi
C. Alveoli
D. Larynx
Rationale: Alveoli have thin walls surrounded by capillaries, which allows efficient
gas exchange.
9. Which vessel carries blood away from the heart?
A. Vein
B. Artery
C. Capillary
D. Venule
Rationale: Arteries carry blood away from the heart, and veins return it. The
pulmonary artery is the exception in that it carries deoxygenated blood.
, 10. Which blood component carries oxygen to the cells?
A. Platelets
B. White blood cells
C. Red blood cells
D. Plasma
Rationale: Red blood cells contain hemoglobin, which binds oxygen.
11. Which blood component destroys bacteria and fights infection?
A. Red blood cells
B. White blood cells
C. Platelets
D. Hemoglobin
Rationale: White blood cells are the immune cells of the blood.
12. Which is the smallest blood component and is responsible for forming clots
and stopping bleeding?
A. White blood cells
B. Red blood cells
C. Plasma
D. Platelets
Rationale: Platelets aggregate at injury sites to form clots.
13. The nervous system has two primary divisions. Which is responsible for the
brain and spinal cord?
A. PNS
B. CNS
Comprehensive Resource To Help You Ace 2026-2027
Exams Includes Frequently Tested Questions With
Elaborated 100% Correct Complete Solutions
Guaranteed Pass First Attempt!! Current Update!!
1. Which is the most muscular chamber of the heart?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
Rationale: The left ventricle pumps blood to the entire body against high systemic
pressure, so its wall is the thickest.
2. Through which chamber does deoxygenated blood enter the heart?
A. Left atrium
B. Left ventricle
C. Right atrium
D. Right ventricle
Rationale: The superior and inferior vena cava return deoxygenated blood from
the body to the right atrium.
3. Through which valve does deoxygenated blood leave the right ventricle?
A. Aortic
B. Mitral
,C. Tricuspid
D. Pulmonary
Rationale: The pulmonary valve opens into the pulmonary artery, sending blood to
the lungs for oxygenation.
4. The superior chambers of the heart are the:
A. Ventricles
B. Atria
C. Valves
D. Septa
Rationale: The atria are the upper receiving chambers, and the ventricles are the
lower pumping chambers.
5. What is the pressure felt against the arterial walls during the heart's
contraction?
A. Diastolic
B. Systolic
C. Pulse pressure
D. Mean arterial pressure
Rationale: Systolic pressure is the peak force on the arteries as the ventricles
contract. Diastolic pressure is the pressure while the heart relaxes.
6. Which bone is located in the upper arm?
A. Radius
B. Ulna
C. Humerus
D. Clavicle
,Rationale: The humerus is the single long bone between the shoulder and elbow.
7. Which is the longest and strongest bone in the human body?
A. Tibia
B. Humerus
C. Femur
D. Fibula
Rationale: The femur (thigh bone) is the longest and strongest bone. Femur
fractures can cause significant blood loss.
8. Where does the exchange of oxygen and carbon dioxide occur, at the ends of
the bronchioles in clusters resembling grapes?
A. Trachea
B. Bronchi
C. Alveoli
D. Larynx
Rationale: Alveoli have thin walls surrounded by capillaries, which allows efficient
gas exchange.
9. Which vessel carries blood away from the heart?
A. Vein
B. Artery
C. Capillary
D. Venule
Rationale: Arteries carry blood away from the heart, and veins return it. The
pulmonary artery is the exception in that it carries deoxygenated blood.
, 10. Which blood component carries oxygen to the cells?
A. Platelets
B. White blood cells
C. Red blood cells
D. Plasma
Rationale: Red blood cells contain hemoglobin, which binds oxygen.
11. Which blood component destroys bacteria and fights infection?
A. Red blood cells
B. White blood cells
C. Platelets
D. Hemoglobin
Rationale: White blood cells are the immune cells of the blood.
12. Which is the smallest blood component and is responsible for forming clots
and stopping bleeding?
A. White blood cells
B. Red blood cells
C. Plasma
D. Platelets
Rationale: Platelets aggregate at injury sites to form clots.
13. The nervous system has two primary divisions. Which is responsible for the
brain and spinal cord?
A. PNS
B. CNS
