Answer:
1. Endocrine
2. Exocrine
Explanation:
The pancreas serves as both endocrine and exocrine gland.
The pancreas is an exocrine gland as the pancreatic acini produce digestive enzymes that are delivered to the small intestine through a network of ducts. The glands that release their secretions by ducts are called exocrine glands.
Islets of Langerhans scattered among pancreatic acini serve the endocrine part of the pancreas. The alpha cells of pancreatic islets secrete hormone glucagon while the beta cells of the islets secrete the hormone insulin directly in the bloodstream. Likewise, the delta cells of pancreatic islets secrete hormone somatostatin. The ductless glands that release their secretions directly into the bloodstream are known as endocrine glands.
It was used till the 1960s. Hope i helped.
Answer:
No, because it is a sign of damage. Although it is better than a burn, it means that DNA has damaged itself. It is the repair mechanism that stimulates more melanin production.
Explanation:
Air moves into the lungs when the air pressure in the lungs is lower than the air pressure outside of the lungs. This occurs when the muscels of the diaphragm contract.
You can see this by breathing in and out deeply. When you breath in you can feel your chest being pushed up and out by your diaphragm. The reason the pressure in the chest is lower is that when you breathe in you are increasing the volume of your chest. As there is the same amount of air in your chest the pressure decreases.