Draw diagram of conducting system of human heart. Label SA node and bundle of His.

Diagram

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Chapter 8: Respiration and Circulation - Short Answer 1

Chapter 8 Respiration and Circulation
Short Answer 1 | Q 6

Q 7 | 2 marks

Q 9 | 2 marks

Describe the function of Heart.

Choose the correct answer:
Which of the following engulfs pathogen rapidly?

State the Location: Semilunar valves of the heart

Column 2 is a list of items related to ideas in Column 1. Match the term in Column 2 with the suitable idea given in Column 1.

Column 1	Column 2
(i) Superior vena cava	(a) Collect deoxygenated blood from the wall of the heart.
(ii) Inferior vena cava	(b) Carry oxygenated blood to heart muscle.
(iii) Pulmonary vein	(c) Collects deoxygenated blood from upper part.
(iv) Coronary veins	(d) Collects deoxygenated blood from lower parts.
(v) Coronary artery	(e) Brings oxygenated blood from lungs.
(vi) Aorta	(f) Large artery
(vii) Heart attack	(g) Large vein
(viii) Blood Pressure	(h) Oxygenated blood
(ix) Tricuspid valve	(i) Sphygmomanometer
(x) Bicuspid valve	(j) Allows blood flow from right auricle to right ventricle.
(xi) Contraction and relaxation of heart	(k) Blocking of coronary arteries.
	(l) Cardiac muscle.
	(m) Allows blood flow from left auricle to left ventricle.
	(n) Allows blood flow from right ventricle of pulmonary aorta.

What is the importance of valves in the heart?

What does the QRS - complex represent?

Identify the CORRECT statement with respect to serous pericardium.

Identify the CORRECT route through which impulse travels in the heart.

Heart is made up of ______.

Valves are present in ______.