1
Question
Read the following statements and find out the incorrect statement.
(a) All vertebrates and a few invertebrates have a closed circulatory system.
(b) Hypertension leads to heart disease and also affects vital organs like brain and lungs.
(c) CAD affects the vessels that supply blood to the skeletal muscles.
(d) In angina, a symptom of chronic chest pain appears when no enough oxygen is reaching the heart muscle.
(e) Heart attack means the state of heart when it is not pumping blood effectively enough to meet the needs of the body.
Read the following statements and find out the incorrect statement.
(a) All vertebrates and a few invertebrates have a closed circulatory system.
(b) Hypertension leads to heart disease and also affects vital organs like brain and lungs.
(c) CAD affects the vessels that supply blood to the skeletal muscles.
(d) In angina, a symptom of chronic chest pain appears when no enough oxygen is reaching the heart muscle.
(e) Heart attack means the state of heart when it is not pumping blood effectively enough to meet the needs of the body.
Open in App
Solution
The correct option is A b,c,d and e
Incorrect statements
Statement b: Hypertension leads to heart disease and also affects vital organs like brain and lungs.
Elaboration: The normal blood pressure of a human being is 120/80 mmHg. In this measurement, 120 mm Hg (millimetres of mercury pressure) is the systolic, or pumping pressure and 80 mm Hg is the diastolic, or resting pressure.
Statement b: Hypertension leads to heart disease and also affects vital organs like brain and lungs.
Elaboration: If the blood pressure of an individual is persistently higher than 140/90, it means the person has a condition called hypertension or high blood pressure.
Prolonged high blood pressure leads to heart diseases as well as affects vital organs like kidney and brain.
Hence, the given statement is incorrect.
Statement c: CAD affects the vessels that supply blood to the skeletal muscles.
Elaboration: Coronary arteries are the arteries that supply blood to the heart and surround the heart. The blockage or narrowing of these arteries is called coronary artery disease or atherosclerosis.
Hence, the given statement is incorrect.
Statement d: In angina, a symptom of chronic chest pain appears when no enough oxygen is reaching the heart muscle.
Elaboration: Angina is a condition of acute chest pain. Heart muscles need continuous supply of oxygenated blood. This condition occurs due to conditions affecting blood flow to heart muscles.
Hence, the given statement is incorrect.
Statement e: Heart attack means the state of heart when it is not pumping blood effectively enough to meet the needs of the body.
Elaboration: Any blockage in the coronary arteries leads to a breakage in the supply of oxygenated blood to the heart damaging cardiac musculature in that area. This is termed as heart attack.
The state of heart when it is not able to pump blood effectively enough to meet the needs of the body is termed heart failure.
Hence, the given statement is incorrect.
Final answer
(D) b,c,d and e
Incorrect statements
Statement b: Hypertension leads to heart disease and also affects vital organs like brain and lungs.
Elaboration: The normal blood pressure of a human being is 120/80 mmHg. In this measurement, 120 mm Hg (millimetres of mercury pressure) is the systolic, or pumping pressure and 80 mm Hg is the diastolic, or resting pressure.
Statement b: Hypertension leads to heart disease and also affects vital organs like brain and lungs.
Elaboration: If the blood pressure of an individual is persistently higher than 140/90, it means the person has a condition called hypertension or high blood pressure.
Prolonged high blood pressure leads to heart diseases as well as affects vital organs like kidney and brain.
Hence, the given statement is incorrect.
Statement c: CAD affects the vessels that supply blood to the skeletal muscles.
Elaboration: Coronary arteries are the arteries that supply blood to the heart and surround the heart. The blockage or narrowing of these arteries is called coronary artery disease or atherosclerosis.
Hence, the given statement is incorrect.
Statement d: In angina, a symptom of chronic chest pain appears when no enough oxygen is reaching the heart muscle.
Elaboration: Angina is a condition of acute chest pain. Heart muscles need continuous supply of oxygenated blood. This condition occurs due to conditions affecting blood flow to heart muscles.
Hence, the given statement is incorrect.
Statement e: Heart attack means the state of heart when it is not pumping blood effectively enough to meet the needs of the body.
Elaboration: Any blockage in the coronary arteries leads to a breakage in the supply of oxygenated blood to the heart damaging cardiac musculature in that area. This is termed as heart attack.
The state of heart when it is not able to pump blood effectively enough to meet the needs of the body is termed heart failure.
Hence, the given statement is incorrect.
Final answer
(D) b,c,d and e
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
