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प्रश्न
Choose the correct answer:
The mammalian heart is ___________
विकल्प
myogenic
neurogenic
digenic
none of these
उत्तर
The mammalian heart is myogenic
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संबंधित प्रश्न
The blood leaving the tissues becomes richer in:
Multiple choice question. Tick (✓) the correct choice:
The heartbeat is measured by an instrument called
- thermometer
- sphygmomanometer
- stethoscope
- none of the above
The help of a well-labelled diagram describes the internal structure of the human heart.
The figure below represents the internal structure of a mammalian heart and the associated blood vessels.
(i) (a) Name each of the structures labeled 1, 2, 3, 4, 5, 6, 7 and 8.
(b) State the function of each of the structures 5, 6, 7, and 8.
(ii) (a) State the function of the heart as an entire organ.
(b) Why are the walls of the left ventricle more muscular than the right?
Calculate the heart rate of a person if the cardiac output is SL, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50mL.
The back flow of blood during the pumping of blood by the heart is prevented by:
Analogy:
Heart: Pericardium membrane.
Lungs: ______.
Mammalian lungs have enormous number of minute alveoli, which permits more ______.
Where is the following located?
Mitral valve
Note the relationship between the first two words and suggest a suitable word/words for the fourth place:
Lub : Atrioventricular valves :: Dup : ______
