Topic - Structure and Function of a Heart
In these Worksheets for Science you will find different questions related to the topic Structure and Function of a Heart that will help you to practice the topic more efficiently.
Multiple Choice Questions
1.The pulmonary artery carries _______________ blood.
(a) pure (b) oxygenated (c) deoxygenated
2.Pulmonary veins carry oxygenated blood from the _______________.
(a) lungs (b) heart (c) body parts
3.The shape of the heart is like a _______________.
(a) pear (b) banana (c) orange
4.Heart is located towards the ______________ of the body.
(a) right (b) left (c) centre
5.Cardiac muscles are found inside the walls of the ______________.
(a) lungs (b) heart (c) stomach
6.Pericardium has _____________ layers.
(a) two (b) three (c) four
7.The ______________ two chambers of the heart are known as auricles.
(a) lower (b) middle (c) upper
8.The right auricle is separated from the right ventricle by the ______________ valve.
(a) tricuspid (b) bicuspid (c) none
9.The contraction of the heart muscles is known as ______________.
(a) diastole (b) systole (c) none
10.In systematic circulation, the blood circulates between the _____________ and the body parts.
(a) lungs (b) trachea (c) heart
Answers - 1.deoxygenated 2.lungs 3.pear 4.left 5.heart 6.two 7.upper 8.tricuspid 9.systole 10.heart
Fill ups
1.________________ are tube like structures that carry blood from one part of the body to the other.
2.________________ carry deoxygenated blood from various parts of the body to the heart.
3._______________ join the arteries and the veins.
4.Heart is protected inside the ________________.
5.The tough sac that protects the heart is known as _______________.
6.The fluid present inside the pericardial cavity is known as _______________ fluid.
7.The lower two chambers of the heart are known as ________________.
8.The right auricles receive ________________ blood.
9.In pulmonary circulation, the blood circulates between the heart and the ______________.
10.A doctor uses a _________________ to check the heart beat of a person.
Answers - 1.arteries 2.veins 3.capillaries 4.ribcage 5.pericardium 6.pericardial 7.ventricles 8.deoxygenated 9.lungs 10.stethoscope
Write True if the statement is true and False if it is incorrect.
1.Arteries are thin walled.
2.Arteries possess elasticity and are muscular.
3.Arteries carry deoxygenated blood.
4.In the pulmonary veins, blood flows under low pressure.
5.The exchange of gases and nutrients occur through capillaries.
6.The heart has three chambers.
7.Left ventricles receive impure blood.
8.The blood passes through the thrice in the process of double circulation.
9.A throbbing sound produced during the contraction and relaxation of the heart is known as heart beat.
10.The contraction of auricles produce a weak sound.
Answers - 1.False 2.True 3.False 4.True 5.True 6.False 7.False 8.False 9.True 10.True
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