Question

Describe the structure and functioning of the human heart.

Answer 1

FUNCTION OF HEART:

Heart is the pumping organ of the body which recieves deoxygenated blood from the body and pumps oxygenated blood back into circulation. Its functioning is divided into two

Types of circulation:

Pulmonary: Circulation to the lungs and back to the heart for purification of deoxygenated blood

Systemic: The oxygenated blood from the heart is carried by the arteries to the different body parts.

STRUCTURE OF HEART:

• The human heart is four-chambered.
• The upper two chambers are called the auricles, separated by the interatrial septum and the lower two chambers are called the ventricles, separated from each other by the interventricular septum.
• The two atria are separated by the interatrial septum. The ventricles have more muscular walls than the auricles.

Answer 2

Answer:

Structure of heart

The heart is divided into four chambers consisting of two atria and two ventricles.

The right atrium receives blood from the superior and inferior vena cavas.

The right ventricle pumps the blood to the lungs.

Functioning of the heart.

The heart pumps blood throughout the body via the circulatory system

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