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प्रश्न
Given below is the simplified pathway of the circulatory system:
(i) Name the blood vessels marked 1 to 8.
(ii) Name the chamber of the heart which:
(a) Receives blood from ‘1’.
(b) Pumps blood into blood vessel ‘8’.
(iii) Mention two structural differences between blood vessels ‘7’ and ‘2’.
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उत्तर
(i)
1. Pulmonary vein
2. Dorsal aorta,
3. Hepatic portal vein
4. Renal artery
5. Iliac vein
6. Hepatic vein
7. Inferior vena-cava
8. Pulmonary artery.
(ii) (a) Left auricle.
(b) Right ventricle.
(iii) (a) The inferior vena cava arises from iliac veins coming from the hind limbs, while the dorsal aorta arises from the left ventricle and continues behind as the abdominal aorta.
(b) The deoxygenated blood is collected by the inferior vena cava, while the branches of the dorsal aorta supply oxygenated blood to the body parts.
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संबंधित प्रश्न
Give reason for the following:
Atrial wall is less muscular than the ventricular wall.
pH of oxygenated blood is ______.
Describe the functions of the: Heart
Name the organ from which oxygenated blood goes into the heart
Veins have valves at intervals in their inner lining whereas the arteries do not have valves. Explain.
Thin tube-like structures which are the component of circulatory system are called blood vessels.
Which of the following correctly represents the components of blood?
Identify the normal haemoglobin count in human females.
Name the following:
The structure that holds the heart valves in position.
Name these:
Three components of circulatory system.
