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Body Fluids and Circulations
What are the two types of circulatory pathways?
The two types of circulatory pathways are:
i. Open circulatory pathway - In this type the blood
pumped by the heart passes through large vessels into open spaces or body cavities called sinuses. It is found in arthropods and molluscs
ii. Closed circulatory pathway - In this type the blood pumped by the heart is always circulated through a closed network of blood vessels. Annelids and chordates have a closed circulatory system.
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Sino-auricular node is called pacemaker of our heart. Why?
Write the differences between
(d) P wave and T wave
Write the differences between
Systole and diastole
Write the differences between
(a) Blood and lymph
Write the differences between
Open and closed circulatory system
What is the differences between lymph and Blood?
How many times does a heart beat per minute?
What is the function of bicuspid valves?
What is the function of tricuspid valves?
Why circulatory system is absent in sponges?
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