What is Sinus arrhythmias?

One Line Answer

Sinus arrhythmias: During inspiration heart rate increases and during expirations it falls. This phenomenon is known as sinus arrhythmia.

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Q 5 | 1 mark

Sketch and label the ventral view of the human heart.

Blood is pumped by

How are arteries and veins structurally different from one another?

How many times per healthy man beats?

What is the duration of joint diastole?

______ externally separates ventricles from each other.

______ is the opening of the upper chamber of the heart into the lower chamber.

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

Describe the flow of blood through the heart of human beings.

Give reason:

Pulmonary veins carry oxygenated blood.