Ductus Arteriosus is a blood vessel normally present in fetuses during development. The blood vessel is designed to bypass the pulmonary artery and brings blood to the Descending Aorta, as the fetus cannot breath through the lung (being as they are fluid filled). This is normally not a problem because oxygenated blood comes from the mother's blood supply.
Patent Ductus Arteriosus, is what happens when that vessel does not close. While not as dangerous as other congenital defects. However, because there is still a bypass, blood that normally need to be oxygenated by going through the pulmonary arteries to the lungs, can be diverted and placed into the blood stream without vital oxygen. This condition may eventually lead to CHF (congestive Heart Failure) and Pulmonary Hypertension if not treated.
Answer:
technically its everyone's but isn't at the same time
Explanation:
The UN Convention on the Law of the Seas states the different rights and regulations regarding specific nations’ rights to oceans. For instance, coastal states have jurisdiction over the 12 nautical miles off their coastlines, and 200 nautical miles are reserved for specific states to utilize the oceanic materials, living and nonliving, in their zone. This can include fishing, the mining of minerals but also includes the obligation to protect the ocean and its biodiversity.
Answer:
Locomotion is essential for various internal and external bodily functions
Explanation:
Locomotion is the art through which our body exhibit various functions and also escapes various condition of environment.
For instance –
a) Through movement of limbs, actions such as running, walking, jumping, crawling, swimming, etc are performed.
b) Movement of body parts and joints helps in taking different comfortable postures.
c) Even some body parts move even when it is not essentially vital for the function being performed such as movement of eyeball and external ear while swallowing food.
d) Movement of nutrients and blood with in the circulation system and digestive system.
e) Movement of sense organs when exposed to extreme environmental conditions.
Crustacea(ns) form a very large group of arthropods.
