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Protozoans

in which orga...

Question

in which organism heart is neurogenic

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Solution

The animals like annelids and arthropods have neurogenic hearts. It requires nervous input to contract.

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Q. Neurogenic heart is characteristic of

Q. State whether the following statements are true or false.
Human heart is neurogenic because the heart beat originates in the nodal tissues.

Q. Which of the following is an incorrect match?
1) Cardiac output - Stroke volume X heart rate.
2) Heart of Frog - Neurogenic.
3) Heart sound Lubb - closure of atrio-ventricular valves.
4) Epinephrine - decreases heart rate.

Q. Match the terms to these definitions.
Vein, cardiac cycle, cardiac output, heart rate, heart beat, double circulation, circulatory system, extracellular fluid, intercellular fluid, myogenic heart, neurogenic heart.
.......... A type of heart in which the cardiac movement is initiated by nerves arising from the brain.

Q. The mammalian heart is
(a) myogenic
(b) neurogenic
(c) digenic
(d) none of these

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