Tag: evs - i

Quizzes (164) Questions (1366)

Questions Related to evs - i

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Consider the following statements.
1. ECG (electrocardiogram) is a test that measures the electrical activity of the heart.
2. ECG is used to measure the rate and regularity of heart beats.
Which of the statement(s) given above is/are correct?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An ECG records the electrical activity of the heart over time, which allows clinicians to assess the heart rate and the regularity of the cardiac rhythm.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Which of the following statement/s is/are correct?
1. Coronary artery supplies blood to heart muscles.
2. Pulmonary vein supplies blood to lungs.
3. Hepatic artery supplies blood to kidneys.
4. Renal vein supplies blood to kidneys.

  1. 1 , 2 and 3

  2. Only 1

  3. 2 and 4

  4. 1 , 3 and 4
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Coronary arteries supply the heart muscle. Pulmonary veins carry oxygenated blood from the lungs to the heart. Hepatic arteries supply the liver, not the kidneys (renal arteries do that). Renal veins drain the kidneys.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Study the following statements: 
1. Heparin is synthesized in the liver.
2. The pacemaker of the human heart is SA node.
3. The decrease in WBC conditions leads to leukopenia.
Which of the statements given above are correct?

  1. 1 , 2 and 3

  2. 1 and 2

  3. 1 and 3

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Heparin is produced by the liver and mast cells. The SA node is the natural pacemaker. Leukopenia is defined as a decrease in the number of white blood cells.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Consider the following statements: 
1. The force that blood exerts force against the wall of a vessel is called blood pressure. 
2. The pressure of blood inside the artery during contraction is called systolic pressure and pressure in an artery during relaxation is called diastolic pressure. 
3. Blood pressure is measured with an instrument called sphygmomanometer.
Which of the statements given above are correct?

  1. 1 and 2

  2. 1 and 3

  3. 2 and 3

  4. 1 , 2 and 3
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All statements are accurate. Blood pressure is the force against vessel walls; systolic/diastolic pressures correspond to heart contraction/relaxation; and the sphygmomanometer is the standard clinical tool for measurement.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Which one of the following vitamins has a role in blood clotting?

  1. Vitamin A

  2. Vitamin D

  3. Vitamin E

  4. Vitamin K
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
A. Vitamin A takes part in the formation of visual retinal pigments like rhodopsin, iodopsin etc. and thus, it is required for normal vision.
B. Vitamin D regulates the metabolism of calcium and phosphorus and in turn affects the growth of body by affecting the growth of bone and teeth.
C. Vitamin E is necessary for maintaining sterility.
D. Vitamin K is necessary for the formation of prothrombin (important component of blood clotting mechanism) in the liver of human beings and thus, it is involved in clotting of blood.
So, the correct answer is 'Vitamin K'.
Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Which of the following disease is caused when plaque blocks the arteries which supply blood to the heart?

  1. Coronary heart disease

  2. Haemophilia

  3. Arthritis

  4. Leukemia
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Coronary artery disease develops when the major blood vessels that supply our heart with blood, oxygen, and nutrients become damaged or diseased. The disease is caused when plaque blocks the arteries which supply blood to the heart.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

The blood of many animals is red because of the presence of this pigment containing iron. What is it called?

  1. Chlorophyll

  2. Haemoglobin

  3. Biliverdin

  4. Bilirubin
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Hemoglobin is a protein present in the red blood cells. The hemoglobin carries oxygen in the blood and transfers it in our body, it is the element that gives red color to our blood. Iron works as a booster towards hemoglobin production in the blood.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Complete digestion takes place in which part of cockroach?

  1. In crop

  2. In Gizzard

  3. In stomach

  4. In oesophagous
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cockroaches belong to phylum Arthropoda which has well developed the digestive system. The digestion of starch in the buccal cavity is followed by complete grinding of food in crop and gizzard which finally enters the stomach. The digestive enzymes secreted by the gastric caeca act upon the food in the stomach. These enzymes include amylase, maltase, invertase, tryptase and lipase. The remaining carbohydrates, proteins and fats are digested here.The digested food is absorbed through the stomach walls into the surrounding space which is called the haemocoel. The haemocoel consists of a large number of fat bodies which are fat cells having fat globules, protein granules and glycogen. They form storage structures which transport to different parts of the body. So, the correct answer is option C.