endocrine

The body’s main controlling systems are the

The endocrine system consists of a widely distributed group of glands that secrete regulatory substances

ENDOCRINE GLANDS
known as the

EXOCRINE GLANDS
known as the

sweat glands and digestive glands

The tissue that is influenced by a specific hormone

have specific receptors on their membranes enabling it to act.

produced in extremely small amounts and are highly potent.

affect growth, metabolism, reproductive activity, and behavior

Chemically, hormones fall into two categories:

which are made from lipids

are produced by the sex glands (gonads) and the outer region (cortex) of the adrenal glands.

which include proteins and protein-like compounds.

All of the endocrine glands aside from the_______ produce amino acid hormones.

Controls the production of hormones
may also be controlled by the nervous system or by other hormones

small gland beneath the brain

anterior lobe of pituitary gland

posterior lobe of pituitary

part of the brain, is connected to and controls both lobes.

produces six hormones

which stimulates bone growth and acts on other tissues as well

indicates a hormone that acts on another gland

releases two hormones that are actually produced in the hypothalamus.

acts on the kidneys to conserve water and also promotes constriction of blood vessels. Both of these actions increase blood pressure.

stimulates uterine contractions and promotes milk “letdown” in the breasts during lactation

consists of two lobes on either side of the larynx and upper trachea.

(T4)

T3

four to six tiny gland located in the posterior surface of the thyroid

egulates calcium exchange between the blood and bones

causes the kidneys to conserve sodium and water while eliminating potassium.

mainly testosterone, are also produced in small amounts, but their importance is not well understood.

small cell clusters within the pancreatic tissue.

increases cellular use of glucose, thus decreasing blood sugar levels.

has the opposite effect, increasing blood sugar levels.

regulates mood, daily rhythms, and sexual development in response to environmental light.

hormone of pineal gland

secretes the hormone thymosin that aids in developing the immune system’s T cells.
It is important in early years but shrinks and becomes less important in adults

testes and ovaries also included because they secrete hormones in addition to producing the sex cells.

group of hormones produced by many cells.
They have a variety of effects, including stimulation of uterine contractions, promotion of inflammation, and vasomotor activities.