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==Thyroid Gland==
 
==Thyroid Gland==
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The thyroid gland lies in the neck, on either side of and ventral to the trachea.  Two types of hormones are produced, which are the iodine containing hormones; '''tri-iodothyronine'''(T3) and '''thyroxine''' (T4). Thyroid hormones regulate the basal metabolic rate and are important in the regulation of growth of tissues, particularly nervous tissue. Release is stimulated by thyroid stimulating hormone (TSH) from the pituitary. The second type of hormone produced from the thyroid gland is '''[[calcitonin]]''', which regulates blood calcium levels along with parathyroid hormone and acts to reduce blood calcium by inhibiting its removal from bone.
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==Parathyroid Glands==
 
==Parathyroid Glands==
 
==Adrenal Glands==
 
==Adrenal Glands==
 
==Pineal Glands==
 
==Pineal Glands==
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