They carried to all parts of the body via the bloodstream where they reach target cells that have receptors.

Hormone secretion is controlled feedback systems, mainly by:

 Hormones involved in regulating labor, childbirth, and lactation are controlled by :

Blood and calcium blood levels are controlled by ______________ that are hormones with opposing effects

What are hormones?

Peptides, proteins, glycoproteins and modified amino acids are____________.

They are hormones derived from cholesterol

Peptide hormones also referred to as_______________.

It is considered the second messenger___________________.

Where does the steroid hormones are produced?

It is an endocrine gland that can be divided into the posterior and anterior pituitary glands. Neurons in the hypothalamus called neurosecretory cells produce the hormones antidiuretic hormone (ADH) and oxytocin.

The hormone __________________causes uterine contraction during childbirth and milk letdown during lactation. It is controlled by positive feedback

Neurons in the hypothalamus called neurosecretory cells produce the hormones antidiuretic hormone (ADH) and oxytocin.

The anterior pituitary gland secretes three hormones, three of which control other endocrine glands:

Stimulates the adrenal cortex to produce cortisol.

It is only produced during pregnancy and after childbirth, and it causes the mammary glands to produce mild and suppress ovulation in the nursing mother

It is an hormone______________which has an unknown function in humans, regulates skin color in lower vertebrates 

Stimulate the gonads to produce gametes and sex hormones.

Produces the thyroid hormones triiodothyronine (T3) and thyroxine (T4) that increase the metabolic rate. They do not have a single target organ, but rather they stimulate most cells of the body to metabolize more glucose and utilize more energy.

These hormones are considered to be antagonistic______________.

The thyroid gland also produces a hormone called calcitonin, which helps control blood calcium levels.

Vitamin D then stimulates the absorption of calcium from the intestine. All these effects bring the blood calcium level back to the normal range

The________________________also produces hormones and controls the pituitary gland by producing hypothalamic-releasing hormones and hypothalamic-inhibiting hormones, thus serving as a link between the nervous and endocrine systems.

The _______________ is an organ that lies near the duodenum of the small intestine. It is made up of both exocrine tissue, which produces and secretes digestive juices, and endocrine tissue, which secrete the hormones insulin, glucagon, and somatostati

The _________________ are the testes in the male and the ovaries in the female. 

Both are under the influence of the gonadotrophic hormones FSH and LH causing the testes to produce sperm and the hormone______________, and the ovaries to produce eggs and the female sex hormones ___________ and ______________.

Stimulates the liver to break down glycogen to glucose. Adipose tissue cells break down fat to glycerol and fatty acids, which are taken up by the liver for glucose formation. In these ways, glucagon raises blood glucose levels. Insulin and glucagon are antagonistic hormones.

__________________________ brings about and maintains the male secondary sex characteristics that develop during puberty, such as the growth of a beard, axillary hair, and pubic hair, it also prompts the larynx and the vocal cords to enlarge, resulting in voice change.

Regulate salt and water balance, leading to increased blood volume and blood pressure. 

_______________________ regulate carbohydrate, protein, and fat metabolism, leading to an increase in the blood glucose level. The adrenal cortex also secretes small amounts of male and female sex hormones in both sexes.

___________________are due to either an increase or decrease in the production of a hormone.

Increased production of a hormone is often due to cancer affecting the endocrine gland.

Patients with _____________ are usually very thirsty, produce large volumes of urine and become severely dehydrated if the condition goes untreated. Another type of_____________ occurs when the kidneys are unable to respond to ADH.

If too little growth hormone is produced during child, the person will have pituitary dwarfism

If too much GH is secreted during childhood, it leads to diabetes

When _____________is overproduced in adults, they can develop a condition known as ______________, in which only the feet, hands and face, particularly the chin, nose and eyebrow ridges) respond to the hormone making them grow overly large

It is caused by pituitary tumors that produce large amounts of ACTH, which stimulate the adrenal cortex to overproduce cortisol. Increased amounts of cortisol cause muscle protein to be metabolized and subcutaneous fat to be deposited in the midsection of the body, resulting in a swollen face and an obese trunk

It occurs if the thyroid gland doesn’t produce enough thyroid hormones for any reason. t can produce a group of clinical symptoms called myxedema, which is characterized by lethargy, weight gin, hair loss, constipation, slow heart rate, and thickened or puffy.

It is the result of insufficient parathyroid hormone production, and causes body shakes form continuous muscle contraction due to increased excitability of the nerves

The most common endocrine disorder is diabetes mellitus, caused by an inability to produce or use insulin. Diabetes mellitus is a leading cause of death primarily because of its damage to the cardiovascular system

It is often used to diagnose diabetes mellitus. A person is asked to ingest a known amount of glucose, and then the blood glucose concentration is measured at intervals.

Characteristics of Diabetes type 2

Characteristics of Diabetes type 1