Endocrine System

Hypothalamus

The Hypothalamus is the neural control center for reproductive hormones,body temperature,and appetite. It links the nervous and endocrine systems. It is located below the thalamus.

Pituitary 

It is below the Hypothalamus. It can also be known as the "Master gland". This gland contains both anterior and posterior lobes. It allows for a direct connection between the hypothalamus and posterior pituitary.

Pineal gland

This gland receives information about dark-light cycles and indirectly detects photoperiod. Pinealocytes manufacture serotonin and the enzyme transferase that converts it into melatonin.

Thyroid

The Thyroid gland allows for the storage of thyroid hormomes which is unique among endocrine glands. It also contains Follicles,Colloid,and Thyroglobulin as well as C cells which produce Calcitonin.

Parathyroid

It is a gland located within or near the thyroid. Most mammals have 2 pairs; the external parathyroid and the internal parathyroid. This ultimately allows it to produce parathyroid hormone.

Thymus

The thymus is responsible for producing and maturing lymphocytes,or immune cells. It is located behind the top of the breastbone.

Testes

The testes are located outside the body cavity in the scrotum and function as the organ that produces sperm and androgens which are male hormones.

Adrenal

Adrenal glands contain a Cortex which has 3 Zona: the Zona glomerulosa which contains Mineralocorticoids(aldosterone), the Zona fasciculata which contains Glucocorticoids(cortisol and corticosterone), and the Zona reticularis which contains Glucocorticoids(cortisol and cortucosterone) as well as Androgens. The adrenal glands also contain a Medulla which is associated with Chromaffin cells, Epinephrine,and Norepinephrine.