MCQ
The main function of nor-adrenaline is
- ✓Contraction of arteries
- BTo stop contraction of arteries
- CRelaxation
- DNone of the above
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| Types of cells (Langerhans) | Hormones |
| $\alpha$ - cells secrete | $A$ |
| $\beta-$ cells secrete | $B$ |
| $\delta$ - cells secrete | $C$ |