Advertisements
Advertisements
प्रश्न
Answer the following:
What is specific in the heart of crocodiles among reptilians?
Advertisements
उत्तर
Crocodiles have a four-chambered heart (2 atria and 2 ventricles) with no mixing of oxygenated and deoxygenated blood, whereas reptiles have a three-chambered heart (2 atria and 1 ventricle).
APPEARS IN
संबंधित प्रश्न
Write the differences between open and closed system of circulation
Sino-atrial node is called the pacemaker of our heart. Why?
A patient’s chart reveals that he has a cardiac output of 7500 mL per minute and a stroke volume of 50 mL. What is his pulse rate (in beats/min)
At any given time there is more blood in the venous system than that of the arterial system. Which of the following features of the veins allows this?
Right ventricular wall is thinner than the left ventricular wall. Why?
What are the heart sounds? When and how are these sounds produced?
Select the correct biological term.
Destroyed in the liver and spleen after circulating in the blood for four months.
Which among the followings is correct during each cardiac cycle?
The cardiac impulse is initiated and conducted further upto ventricle. The correct sequence of conduction of impulse is ______.
Define the following terms and give their location?
Purkinje fibre
The walls of ventricles are much thicker than atria. Explain.
Write the features that distinguish between the two.
Open and Closed circulatory system
Write the features that distinguish between the two.
Sino-atrial node and Atrio-ventricular node
Answer the following:
Which part of heart is responsible for initating and maintaining its rhythmic activity?
In the diagrammatic presentation of heart given below, mark and label, SAN, AVN, AV bundles, bundle of His and Purkinje fibres.
Following are the stages of pathway for conduction of an action potential through the heart:
- AV bundle
- Purkinje fibres
- AV node
- Bundle branches
- SA node
Choose the correct sequence of pathway from the options given below:
