Human Anatomy II Examination Newest With
Complete Questions And Correct Detailed
Answers| Brand New Version
1. Which chamber of the heart receives oxygenated blood from
the lungs?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
The pulmonary veins deliver oxygenated blood from the lungs
into the left atrium.
2. Which valve prevents backflow of blood from the left ventricle
into the left atrium?
A. Tricuspid valve
B. Mitral valve
C. Pulmonary valve
D. Aortic valve
The mitral (bicuspid) valve closes during ventricular
contraction to prevent regurgitation.
3. What is the primary pacemaker of the heart?
A. Sinoatrial (SA) node
B. Atrioventricular (AV) node
C. Bundle of His
D. Purkinje fibers
The SA node initiates electrical impulses that control heart
rhythm.
4. Which artery supplies oxygenated blood to the myocardium?
A. Coronary arteries
, B. Pulmonary arteries
C. Carotid arteries
D. Jugular veins
Coronary arteries branch from the aorta to supply the heart
muscle.
5. Which blood vessel carries deoxygenated blood from the body
to the heart?
A. Vena cava
B. Pulmonary veins
C. Aorta
D. Coronary sinus
The superior and inferior vena cava return systemic
deoxygenated blood to the right atrium.
6. Which blood component is responsible for clotting?
A. Red blood cells
B. White blood cells
C. Platelets
D. Plasma
Platelets form plugs and activate clotting factors during injury.
7. Which blood cell is most abundant?
A. Red blood cells
B. Neutrophils
C. Lymphocytes
D. Platelets
Red blood cells outnumber all other blood cells and transport
gases.
8. Which protein allows red blood cells to carry oxygen?
A. Hemoglobin
B. Albumin
, C. Fibrinogen
D. Myosin
Hemoglobin binds oxygen using iron-containing heme groups.
9. Where does gas exchange occur in the lungs?
A. Bronchi
B. Trachea
C. Alveoli
D. Pleura
Alveoli provide thin walls and large surface area for diffusion.
10. Which muscle is primarily responsible for inspiration?
A. Intercostals
B. Abdominals
C. Diaphragm
D. Sternocleidomastoid
Diaphragm contraction increases thoracic volume.
11. Which structure connects the pharynx to the trachea?
A. Larynx
B. Esophagus
C. Bronchi
D. Epiglottis
The larynx serves as an airway and voice-producing structure.
12. What prevents food from entering the trachea?
A. Epiglottis
B. Uvula
C. Vocal cords
D. Soft palate
The epiglottis covers the larynx during swallowing.
13. Which organ filters blood and produces urine?
A. Kidneys
Complete Questions And Correct Detailed
Answers| Brand New Version
1. Which chamber of the heart receives oxygenated blood from
the lungs?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
The pulmonary veins deliver oxygenated blood from the lungs
into the left atrium.
2. Which valve prevents backflow of blood from the left ventricle
into the left atrium?
A. Tricuspid valve
B. Mitral valve
C. Pulmonary valve
D. Aortic valve
The mitral (bicuspid) valve closes during ventricular
contraction to prevent regurgitation.
3. What is the primary pacemaker of the heart?
A. Sinoatrial (SA) node
B. Atrioventricular (AV) node
C. Bundle of His
D. Purkinje fibers
The SA node initiates electrical impulses that control heart
rhythm.
4. Which artery supplies oxygenated blood to the myocardium?
A. Coronary arteries
, B. Pulmonary arteries
C. Carotid arteries
D. Jugular veins
Coronary arteries branch from the aorta to supply the heart
muscle.
5. Which blood vessel carries deoxygenated blood from the body
to the heart?
A. Vena cava
B. Pulmonary veins
C. Aorta
D. Coronary sinus
The superior and inferior vena cava return systemic
deoxygenated blood to the right atrium.
6. Which blood component is responsible for clotting?
A. Red blood cells
B. White blood cells
C. Platelets
D. Plasma
Platelets form plugs and activate clotting factors during injury.
7. Which blood cell is most abundant?
A. Red blood cells
B. Neutrophils
C. Lymphocytes
D. Platelets
Red blood cells outnumber all other blood cells and transport
gases.
8. Which protein allows red blood cells to carry oxygen?
A. Hemoglobin
B. Albumin
, C. Fibrinogen
D. Myosin
Hemoglobin binds oxygen using iron-containing heme groups.
9. Where does gas exchange occur in the lungs?
A. Bronchi
B. Trachea
C. Alveoli
D. Pleura
Alveoli provide thin walls and large surface area for diffusion.
10. Which muscle is primarily responsible for inspiration?
A. Intercostals
B. Abdominals
C. Diaphragm
D. Sternocleidomastoid
Diaphragm contraction increases thoracic volume.
11. Which structure connects the pharynx to the trachea?
A. Larynx
B. Esophagus
C. Bronchi
D. Epiglottis
The larynx serves as an airway and voice-producing structure.
12. What prevents food from entering the trachea?
A. Epiglottis
B. Uvula
C. Vocal cords
D. Soft palate
The epiglottis covers the larynx during swallowing.
13. Which organ filters blood and produces urine?
A. Kidneys
