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Quiz 25
Mdcat-past-papers - ETEA Quiz
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Board: ETEA |
481. Label 'a' in the following diagram:
Cardiac sphincter
sinoatrial valve
stomach valve
pyloric sphincter
482. Which enzyme is secreted in an inactive state, to prevent it from digesting its own cells?
Lactase
Sucrase
Maltase
Pepsin
483. Stomach: Select the mismatched pair: Cell Type Function (a) Chief cell 1) Pepsinogen (b) Parietal cell 2) Mucus (c) Endocrine cell 3) Hormone (d) Mucus cell 4) HCl (not in list) / Mucus
A
B
C
D
484. Which hormone stimulates the secretion of gastric juice?
Cholecystokinin
insulin
Gastrin
Secretin
485. Digested food from intestine is carried to the liver by:
Hepatic artery
Hepatic vein
Hepatic Portal vein
Hepatic portal artery
486. A hormone secreted form the duodenal mucosa that changes the inactive trypsinogen into trypsin is:
Peptone
Ecdysone
Enterokinase
Amylase
487. Lipid emulsification is done by:
pancreatic enzymes
bile salts
gastric juice
salivary glands
488. Enzymatic portion of the gastric juices secreted by which mucosal cells?
Oxyntic cells
Chief cells
Mucous Cells
Endocrine cells
489. Which one is not a function of large intestine?
absorption of electrolytes
production of vitamins
absorption of water
absorption of amino acids
490. Respiratory tubules are termed as bronchioles when they attain the diameter of ----- or lesser:
1.2cm
1cm
1mm
1.2mm
491. Which of the following proteins are involved in the expansion and recoiling of alveoli during breathing?
Collagen and Keratin
Elastin and heratin
collagen and elastin
Collagens and squamous cells
492. Where does the Trachea lie in relation to the oesophagus?
Dorsal
Ventral
Medial
Lateral
493. Which of the following parts of the respiratory system has no cartilage?
Larynx
Trachea
Bronchioles
Bronchi
494. The following part is common in both the digestive system and the respiratory system of human beings;
trachea
Pharynx
Larynx
Oesophagus
495. Breathing consists of:
4 phases
3 phases
One phase
Two phase
496. Carboxyhaemoglobin(10-20%) is formed when CO2 combines with :
Amino group of Haemoglobin
Iron part of Haemoglobin
Haem portion of Haemoglobin
Plasma proteins
497. The total capacity of a human lung is 5 liters. What percentage of it is filled when one takes an extra deep breath?
10%
40%
60%
80%
498. What will happen with the addition of salt to water?
Water potential will increase
Osmotic potential will decrease
Water potential will remain same
Osmotic potential will remain same
499. All of the following are true about neutrophils, except:
Most abundant form of WBCs
Have a short life span
Made by the thymus
Released by bone marrow
500. The sinoatrial node is located in the ......... wall of the right atrium
upper dorsal
lower dorsal
upper ventral
lower ventral
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