Prev 1 2 3 4 5 Next
1. Who operates the first heart transplant procedure?
A. William Harvey
B. Watson
C. Christian Bernard
D. Khorana
ANSWER: C.Christian Bernard
SOLUTION :Christiaan Barnard with his team, performed the world’s first human-to-human heart transplant operation on 3 December 1967.
2. At which point, the right ventricle contracts, and blood is pumped out.
A. Superior vena cava
B. Dorsal aorta
C. Pulmonary aorta
D. Pulmonary veins
ANSWER: C.Pulmonary aorta
SOLUTION:Blood first enters the heart’s right atrium. A muscle contraction forces the blood through the tricuspid valve into the right ventricle. When the right ventricle contracts, blood is forced through the pulmonary semilunar valve into the pulmonary artery.
3. Which part of the body can be called a kind of “blood bank”?
A. Heart
B. Liver
C. Spleen
D. Lungs
ANSWER :C.Spleen
SOLUTION:Spleen is known as blood bank because it is responsible for blood purification and storing blood cells for an emergency situation like Hemorrhagic Shock(due to a large amount of blood loss).
4. Which of the following arteries does not carry oxygenated blood?
A. Systemic
B. Hepatic
C. Pulmonary
D. Cardiac
ANSWER: C.Pulmonary
SOLUTION:Pulmonary artery is the artery that does not carry oxygenated blood . -The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs .
5. Which of the following has a closed-type circulatory system?
A. Cockroach
B. Fish
C. Mollusca
D. Scorpion
ANSWER: B.Fish
SOLUTION:The closed circulatory system is present in Annelids and Chordates.
So, the correct option is ‘Fish’. Choose the correct answer from the alternatives given.
6. The study of the blood circulatory system is called _________.
A. Angiology
B. Cardiology
C. Hematology
D. Osteology
ANSWER: A.Angiology
SOLUTION: Angiology is the study of blood vascular system or circulatory system.
7. By which type of tissue the atrioventricular septum composed of?
A. Cartilage
B. Fibrous tissue
C. Osteocytes
D. Mucous membrane
ANSWER: B.Fibrous tissue(SA node)
SOLUTION:The atrioventricular septum is a septum of the heart between the right atrium (RA) and the left ventricle (LV). It is made up of fibrous tissue.
8. Which of these structures is nearest to the atrioventricular node?
A. SAN
B. Left ventricle
C. Atrio-ventricular septum
D. Aorta
ANSWER: C.Atrio-ventricular septum
SOLUTION:The atrioventricular (AV) node is a small structure in the heart, located in the Koch triangle,[1] near the coronary sinus on the interatrial septum.
9. Which of the following parts of the body is called the heart’s pacemaker?
A. Purkinje fibers
B. AVN
C. Sinus Node
D. Bundle of His
ANSWER: C.Sinus Node
SOLUTION: The sinus node continuously generates electrical impulses, thereby setting the normal rhythm and rate in a healthy heart. Hence, the SA node is referred to as the natural pacemaker of the heart.
10. What is the approximate weight of the human heart?
A. 250- 300 gm
B. 250- 350 gm
C. 350- 450 gm
D. 300- 400 gm
ANSWER: A.250- 300 gm
SOLUTION:The heart is a muscular organ, comprising cardiac muscle tissue, which contracts repeatedly and rhythmically to pump blood through blood arteries. In a nutshell, it has been estimated that the heart weighs an average of 236 to 412 g, with a range of 90 to 672 g.