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Which of the following is correct for parallel venation?
Option: 1
Lateral veins form anastomoses
Option: 2
The principal vein fuses with lateral vein
Option: 3
Lateral veins do not form anastomoses
Option: 4
All of these
Answers (1)
Parallel Venation: When the veins run parallel to each other, it is called parallel venation. There is a single prominent vein that runs from the base to the apex and the lateral veins run parallel to one another. It can be further divided into the following types:
- Pinnate parallel venation: There is a single parallel vein that runs from the base to the apex. The lateral veins run parallel without forming anastomoses. For example, banana, canna, etc.
- Palmate or convergent parallel venation: Several parallel principal veins arise from the base and converge towards the apex. For example, bamboo, grasses, etc.
- Palmate or divergent parallel venation: Several veins arise from the base of the lamina and diverge towards the margins. For example Fan palm.
- In the parallel venation, there is a single parallel vein that runs from the base to the apex. The lateral veins run parallel without forming anastomoses.
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