In your opinion, why do you think our heads need such a large network of blood vessels?

What is an endocrine function? (apex) a.esophageal glands release mucus into the esophagus b.salivary glands release saliva into mouth c.swear glands release sweat to the skin d.the pineal gland releases melatonin into the bloodstream

Which body region are part of the cephalic region?

How many pounds does the earth weigh?