Search results
- Organs of the endocrine system. Endocrine glands tend to be vascular and do not have ducts. Ducts are instead found in exocrine glands, which produce hormonal signals outside of the body.
- Hypothalamus. Borders. The hypothalamus is an almond-sized structure in the limbic system of the brain, and the endocrine system’s control center. Its borders are the following
- Pituitary gland. Location. The pituitary gland (hypophysis cerebri) is a pea-sized, ovoid shaped structure attached via the infundibulum to the tuber cinereum of hypothalamus.
- Pineal gland. Location. Along with the hypothalamus and pituitary gland, the pineal gland (epiphysis cerebri) is found in the brain. It is a small organ located in a depression between the superior colliculi, inferiorly to the splenium of the corpus callosum.
- Hypothalamus
- Pituitary Gland
- Pineal Gland
- Thyroid Gland
- Parathyroid Glands
- Adrenal Glands
- Pancreas
- Gonads
- Thymus
- Other Hormone Producing Organs
The hypothalamus is a part of the brain located superior and anterior to the brain stem and inferior to the thalamus. It serves many different functions in the nervous system, and is also responsible for the direct control of the endocrine system through the pituitary gland. The hypothalamus contains special cells called neurosecretory cells---neur...
The pituitary gland, also known as the hypophysis, is a small pea-sized lump of tissue connected to the inferior portion of the hypothalamus of the brain. Many blood vessels surround the pituitary gland to carry the hormones it releases throughout the body. Situated in a small depression in the sphenoid bonecalled the sella turcica, the pituitary g...
The pineal glandis a small pinecone-shaped mass of glandular tissue found just posterior to the thalamus of the brain. The pineal gland produces the hormone melatonin that helps to regulate the human sleep-wake cycle known as the circadian rhythm. The activity of the pineal gland is inhibited by stimulation from the photoreceptors of the retina. Th...
The thyroid glandis a butterfly-shaped gland located at the base of the neck and wrapped around the lateral sides of the trachea. The thyroid gland produces 3 major hormones: 1. Calcitonin 2. Triiodothyronine (T3) 3. Thyroxine (T4) Calcitonin is released when calcium ion levels in the blood rise above a certain set point. Calcitonin functions to re...
The parathyroid glandsare 4 small masses of glandular tissue found on the posterior side of the thyroid gland. The parathyroid glands produce the hormone parathyroid hormone (PTH), which is involved in calcium ion homeostasis. PTH is released from the parathyroid glands when calcium ion levels in the blood drop below a set point. PTH stimulates the...
The adrenal glandsare a pair of roughly triangular glands found immediately superior to the kidneys. The adrenal glands are each made of 2 distinct layers, each with their own unique functions: the outer adrenal cortex and inner adrenal medulla.
The pancreas is a large gland located in the abdominal cavity just inferior and posterior to the stomach. The pancreas is considered to be a heterocrine gland as it contains both endocrine and exocrine tissue. The endocrine cells of the pancreas make up just about 1% of the total mass of the pancreas and are found in small groups throughout the pan...
The gonads---ovaries in females and testes in males---are responsible for producing the sex hormones of the body. These sex hormones determine the secondary sex characteristics of adult females and adult males. 1. Testes: The testes are a pair of ellipsoid organs found in the scrotum of males that produce the androgen testosterone in males after th...
The thymusis a soft, triangular-shaped organ found in the chest posterior to the sternum. The thymus produces hormones called thymosins that help to train and develop T-lymphocytes during fetal development and childhood. The T-lymphocytes produced in the thymus go on to protect the body from pathogens throughout a person's entire life. The thymus b...
In addition to the glands of the endocrine system, many other non-glandular organs and tissues in the body produce hormones as well. 1. Heart: The cardiac muscle tissue of the heartis capable of producing the hormone atrial natriuretic peptide (ANP) in response to high blood pressure levels. ANP works to reduce blood pressure by triggering vasodila...
Once a hormone has been used, it is destroyed by the liver. Like the nervous system, hormones can control the body. The effects are much slower than the nervous system, but they last for longer ...
Jan 22, 2024 · The endocrine system is made up of endocrine glands located throughout the body. These glands produce different endocrine hormones and release them into the bloodstream via which they travel to specific target organs. This way the endocrine system acts as a signaling pathway regulating a number of important body functions such as growth ...
- Medical Content
- 11 min
The major glands of the endocrine system are the hypothalamus, pituitary, thyroid, parathyroids, adrenals, pineal body, and the reproductive organs (ovaries and testes). The pancreas is also a part of this system; it has a role in hormone production as well as in digestion. The endocrine system is regulated by feedback in much the same way that ...
These follicles are the center of thyroid hormone production and that production is dependent on the hormones’ essential and unique component: iodine. Figure 17.4.1 – Thyroid Gland: The thyroid gland is located in the neck where it wraps around the trachea. (a) Anterior view of the thyroid gland. (b) Posterior view of the thyroid gland.
People also ask
What is an example of a hormone release?
What hormones are released into the bloodstream?
Where are sex hormones produced?
How are thyroid hormones assembled?
What hormones are produced in the adrenal cortex?
What enzymes are involved in the production of oestradiol?
Feb 8, 2024 · The hypothalamic-pituitary-gonadal (HPG) axis includes the hypothalamus, pituitary gland and gonads. Gonadotropins are the hormones produced to control the reproductive system. The hormones involved are gonadotropin-releasing hormone (GnRH) secreted from the hypothalamus, luteinizing hormone (LH) and follicle-stimulating hormone (FSH) produced ...
