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The pyramidal lobe is a remnant of the thyroglossal duct, which usually wastes away during the thyroid gland's descent. [5] Small accessory thyroid glands may in fact occur anywhere along the thyroglossal duct, from the foramen cecum of the tongue to the position of the thyroid in the adult. [4]
The thyroid ima artery (thyroidea ima artery, arteria thyroidea ima, thyroid artery of Neubauer or the lowest thyroid artery) is an artery of the head and neck.It is an anatomical variant that, when present, supplies blood to the thyroid gland primarily, or the trachea, the parathyroid gland and the thymus gland (as thymica accessoria) in rare cases.
The two lobes differ slightly in size, with the left lobe usually higher than the right. Thymic tissue may be found scattered on or around the gland, and occasionally within the thyroid. [2] The thymus in children stretches variably upwards, at times to as high as the thyroid gland. [2]
The thyrocervical trunk soon divides into branches: the inferior thyroid artery, the suprascapular artery, and the transverse cervical artery. [2] The transverse cervical artery is present in about 2/3 of cases. In a third of cases the superficial cervical artery and the dorsal scapular artery arise as the transverse cervical artery. [3]
The thyroid gland also stretches across the upper trachea, with the isthmus overlying the second to fourth rings, and the lobes stretching to the level of the fifth or sixth cartilage. [2] The blood vessels of the thyroid rest on the trachea next to the isthmus; superior thyroid arteries join just above it, and the inferior thyroid veins below ...
A low amount of thyroxine (one of the two thyroid hormones) in the blood, due to lack of dietary iodine to make it, gives rise to high levels of thyroid stimulating hormone (TSH), which stimulates the thyroid gland to increase many biochemical processes; the cellular growth and proliferation can result in the characteristic swelling or hyperplasia of the thyroid gland, or goiter.
To combat this, Werner suggests munching on foods that stabilize blood sugar, lowering insulin levels to keep you feeling full and satisfied—a win-win. Build your meals and snacks around protein ...
The inferior thyroid artery is an artery in the neck. It arises from the thyrocervical trunk and passes upward, in front of the vertebral artery and longus colli muscle . It then turns medially behind the carotid sheath and its contents, and also behind the sympathetic trunk , the middle cervical ganglion resting upon the vessel.