Definition of ravishing written for English Language Learners from the Merriam-Webster Learner's Dictionary with audio pronunciations, usage examples, and count/noncount noun labels. Learner's Dictionary mobile search
In the neck, the thyroid gland is surrounded by a number of other important anatomical structures. Anteriorly (towards the front of the thyroid gland), the gland is covered by muscles of the neck, called the sternohyoid and the sternothyroid muscles.The thyroid gland itself is covered by a capsule made of connective tissue.he carotid sheaths are posterior relations of both the left and the right lobes of the thyroid gland. Further posterior to the carotid sheaths are the vertebrae of the neck, and other nerves, arteries and veins. There are also muscles of the neck, such as the scalene muscles sitting behind the thyroid gland.
The parathyroid glands are small endocrine glands in the neck of humans and other tetrapods that produce parathyroid hormone. Humans usually have four parathyroid glands, variably located on the back of the thyroid gland, although considerable variation exists.Parathyroid hormone and calcitonin (one of the hormones made by the thyroid gland) have key roles in regulating the amount of calcium in the blood and within the bones.he parathyroid glands do this by secreting parathyroid hormone. Parathyroid hormone (PTH, also known as parathormone) is a small protein that takes part in the control of calcium and phosphate homeostasis, as well as bone physiology. Parathyroid hormone has effects antagonistic to those of calcitonin.