NEET-UG Biology · Class 11
Control of the heart and circulation disorders — NEET & JEE Questions
Control of the heart and circulation disorders is a topic in Body Fluids and Circulation, a Class 11 Biology chapter of the NEET-UG syllabus. TestBudy holds 14 published NEET-UG questions on Control of the heart and circulation disorders, each with the marking scheme of the real paper. The ideas it examines include Signals that speed up or slow the heart, Blood pressure readings that count as high, Angina, artery blockage and heart failure.
- questions
- 14
- shown here
- 10
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Key formulas and concepts
The ideas Control of the heart and circulation disorders is examined on, as they are tagged in the syllabus tree.
- Signals that speed up or slow the heart
- Blood pressure readings that count as high
- Angina, artery blockage and heart failure
Control of the heart and circulation disorders MCQs with solutions
10 of the 14 published questions on this topic, exactly as they appear in a test. Answers and worked solutions come with your result rather than on this page.
Persistent arterial pressure above normal is called:
- A. angina
- B. heart failure
- C. anaemia
- D. hypertension
Which structure normally acts as the pacemaker of the human heart?
- A. Bundle of His
- B. Atrioventricular node
- C. Sinoatrial node
- D. Purkinje fibres
Which condition is defined by a persistent arterial blood pressure above the normal range, commonly around or above 140/90 mm Hg in the NCERT description?
- A. Atherosclerosis only
- B. Angina pectoris
- C. Heart failure
- D. Hypertension
What is the usual effect of sympathetic stimulation on the heart?
- A. It increases heart rate and force of contraction
- B. It stops impulse formation in the SA node
- C. It decreases cardiac output in all circumstances
- D. It closes the coronary arteries
What is angina pectoris most directly associated with?
- A. Complete and permanent stopping of the heartbeat
- B. Reduced myocardial oxygen supply causing chest pain
- C. Excess oxygen delivery to cardiac muscle
- D. Failure of blood to clot
The normal pacemaker of the human heart is the
- A. sinoatrial node
- B. atrioventricular node
- C. bundle of His
- D. Purkinje fibres
A coronary artery becomes progressively narrowed by lipid-rich deposits in its wall. Which disorder is most directly involved?
- A. Erythroblastosis fetalis caused by maternal-fetal Rh incompatibility
- B. Haemophilia
- C. Atherosclerotic coronary artery disease
- D. Emphysema
A patient's heart continues to beat but cannot pump enough blood to meet the body's needs. Which term best describes this condition?
- A. Hypertension only
- B. Cardiac arrest
- C. Angina only
- D. Heart failure
Following are the stages of pathway for conduction of an action potential through the heart A. AV bundle B. Purkinje fibres C. AV node D. Bundle branches E. SA node Choose the correct sequence of pathway from the options given below
- A. E-C-A-D-B
- B. A-E-C-B-D
- C. B-D-E-C-A
- D. E-A-D-B-C
If sympathetic stimulation of the heart increases, which change is expected?
- A. Heart rate and force of contraction increase
- B. Heart rate falls sharply
- C. The SA node stops firing
- D. Cardiac output must become zero
Common mistakes in Control of the heart and circulation disorders
Recorded against questions in this topic that are not shown above, so none of these points at an answer you can see on this page.
- Assuming stress hormones suppress the heart because parasympathetic control also exists.
- Confuses coronary circulation with pulmonary or systemic venous return.
- Assumes higher pressure is always beneficial because it can increase flow.
- Treats all heart disorders as failures of the same physiological mechanism.
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