This set of Human Anatomy Interview Questions and Answers focuses on “Angiology – Development of Vascular System & Thoracic Cavity”.
1. Which of the following is the thinnest blood vessel?
c) Meta Arterioles
Explanation: Capillary is the thinnest blood vessel order of 10µm in diameter. Each capillary is lined with simple layer of flat cells called endothelium.
2. The arteries are composed of _________ coat.
Explanation: The arteries are composed of 3 coats. They are as follows:-
- An internal or endothelial coat
- External or connective tissue coat
- A middle or muscular coat.
3. What is the study of blood vessels called?
Explanation: Angiology is the medical specialty which studies the diseases in the circulatory system and blood vessels.
4. Which of the following has the thickest wall?
a) Right ventricle
b) Left ventricle
c) Right auricle
d) Left auricle
Explanation: Left ventricle is one of the four chambers of the heart. The left ventricle has a thicker wall than right ventricles because the left ventricle has to pump blood all the way around the body but right ventricle only has to pump it to the lungs.
5. Pulmonary vein carries ________
a) Deoxygenated blood
b) Mixed blood
c) Oxygenated blood
d) Pure blood
Explanation: Pulmonary vein carries Oxygenated blood from lungs to the heart. The largest pulmonary veins are the four main pulmonary veins two from each lung that drain into the left atrium of the heart.
6. The artery is blood vessel which carries blood _______
a) Away from the heart
b) Towards the heart
c) Has deoxygenated blood without exception
d) Mixed blood
Explanation: The arteries are the blood vessels that deliver oxygen rich blood from heart to other organs of the body. Artery is a muscular tube lined by smooth tissues and has three layers.
7. Frog heart: 3 chambered:: Human heart: ____________
Explanation: Human heart is four chambered. It has two auricles and two ventricles.
8. Musculi pectinatis are ridges present inside auricles.
Explanation: Musculi pectinatis are parallel ridges in the walls of atria of the heart. They are so called because of their resemblance to the teeth comb as in pecten.
9. Mention the organ which is present in thoracic cavity through which food passes from throat to stomach?
Explanation: Esophagus is also known as food pipe. It is a muscular pipe about 8 inches long and is lined by tissue called mucosa.
10. Thoracic cavity is the largest hollow space of the body.
Explanation: Thoracic cavity is the second largest hollow space of the body. It is also called a chest cavity. The largest hollow space is abdominal cavity.
11. Accumulation of fluid in pleural cavity is called as ______________
Explanation: Accumulation of fluid in pleural cavity is called as Hydrothorax. If a fluid is bloody the condition is called hemothroax and if it contains pus it is called pythorax.
12. How many compartments does thoracic cavity have?
Explanation: Thoracic cavity has 3 compartments. It has mediastinum and 2 pleural cavities. Mediastinum is a home to heart trachea and vessels. Pleural cavity contains lungs and pleural linings.
13. Which organ is present medial to the lungs and posterior to sternum in thoracic cavity?
c) Food pipe
Explanation: Heart is a muscular organ in humans. It pumps blood through blood vessels of circulatory system.
14. What is the name of serous membrane that covers thoracic cavity?
d) Lining membrane
Explanation: Serous membrane covering heart is called pericardium. The serous membrane lining thoracic cavity and surrounding lungs are called pleura.
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