The function of testosterone: 1. Testosterone facilitates the development of genital tracts. 2. Inadequate secretion or failure of testosterone leads to eunuchoidism, affecting the formation of secondary sexual characteristics.
The pancreas contains clusters of endocrine cells known as Islets of Langerhans, and these islets comprise four distinct types of hormone-secreting cells 1. Alpha (α) cells: constituting 20%, release glucagon—a hyperglycemic hormone that promotes glucogenolysis in the liver, elevating blood glucose levels. 2. Beta (β) cells: comprising 70%, produce insulin—a hypoglycemic hormone triggering glycogenesis in … Read more
1.Melatonin. 2.The pineal gland, a small endocrine organ located in the brain, generates and releases melatonin, a hormone crucial for regulating biological rhythms like sleep and wake cycles. Light inhibits melatonin secretion, while darkness triggers it.
Excessive release of growth hormones in adults results in the abnormal lengthening of the bones in the arms, legs, and lower jaw, leading to a condition known as acromegaly.
Hormones derived from steroids.
Corpus luteum
progesterone
The middle ear comprises the tympanic membrane and three bony ossicles: the malleus, incus, and stapes. Together, these ossicles form a connection between the tympanic membrane and the inner ear. This arrangement facilitates the transmission of sound waves from the external environment to the inner ear. The malleus, incus, and stapes play a crucial role … Read more
The cerebellum, a vital part of the brain, plays a key role in preserving body equilibrium, posture, balance orientation, coordinating voluntary movements, and sustaining muscle tone.