MCQS CORNER

Consider the following four statements (i) - (iv) and select the correct option.
(i) Fish heart contains only oxygenated blood.
(ii) Closure of A-V valves produces the second heart sound.
(iii) The vascular connection between the digestive tract and kidney is called hepatic portal system.
(iv) Purkinje fibres are nerve fibres present in the heart wall.

Consider the following four statements (i) - (iv) and select the correct option.
(i) SA node is the natural pacemaker of the heart.
(ii) Human heart has inter-auricular foramen.
(iii) Right atrioventricular valve is a semilunar valve.
(iv) Normal systolic and diastolic pressure of humans is 120mm Hg and 60mm Hg respectively.

Which one of the following is incorrect for atherosclerosis?

The given figure shows an angiogram of the coronary blood vessel. Which one of the following statements correctly describes, what is being done?

During acute myocardial infarction which of the following changes occurs in the ECG?

Given below are four statements (i-iv) regarding the human blood circulatory system.
(i) Arteries are thick-walled and have narrow lumen as compared to veins.
(ii) Angina is acute chest pain when the blood circulation to the brain is reduced.
(iii) Persons with blood group AB can donate blood to any person with any blood group under $A B O$ system.
(iv) Calcium ions play a very important role in blood clotting.

Which two of the above statements are correct?

Which one of the following statements is correct regarding blood pressure?

Match column I with column II and select the correct option from the codes given below.