The Endocrine System. The Endocrine System are the glands that secrete hormones into the bloodstream

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The Endocrine System

The Endocrine System

The Endocrine System are the glands that secrete hormones into the bloodstreamEndocrine SystemOne of the bodys two communication systemsNervous and endocrineA set of glands that produce hormones-- chemical messengers that circulate in the bloodHormoneChemical messengers produced by the endocrine glands and circulated in the bloodSimilar to neurotransmitters in that they are also messengers Slower communication system, but with longer lasting effectsEndocrine System

HypothalamusBrain region that controls the pituitary glandControls homeostasis the bodies ability to remain at a status quo levelPituitary GlandThe endocrine systems gland that controls the other endocrine glandsCalled the master glandLocated at the base of the brain and connects to the hypothalamus

Pituitary GlandControls thirst by controlling the amount of water in the bodys cellsControls female contractions, and tells the mammary glands to produce milk for newbornsPituitary GlandMay control grooming habits, companionship, and sexual behaviorControls the flow of the human growth hormones dwarfism and gigantism

Pineal GlandResponsible for the hormone MelatoninIncreased levels of Melatonin cause behaviors associated with sleepDecreased levels of Melatonin cause behaviors associated with wakefulness

Thyroid GlandEndocrine gland that helps regulate the energy level in the bodyLocated in the neck

Endocrine System

Thyroid Glandcontrols body temperature Controls metabolism our bodys ability to transform the food we eat into usable energyOveractive? Behaviors may include excitability, insomnia, ADD, agitation, difficulty focusingReduced Activity? Behaviors may include sleepiness, reduced muscle tone, overweight

Adrenal GlandEndocrine glands that help to arouse the body in times of stressLocated just above the kidneysRelease epinephrine (adrenaline) and norepinephrine (noradrenaline)

Endocrine System

Adrenal GlandsIncrease heart rate, blood pressure, and blood sugar

Pancreatic GlandRegulates the level of blood sugar (insulin) in the blood

Endocrine System

PancreasInsulin is needed in the body to break down sugars in the bodyToo much insulin in the body devours all of the sugar in the blood. Behaviors exhibited include sluggishness and inattentiveness.

Too little insulin causes a buildup of sugar in the blood and makes the kidneys use a lot more water to flush it out of the body. The extra water needed to flush the sugar comes from surrounding cells, which in turn dehydrates them and leaves them vulnerable to infection and poisons.

Sex GlandsOvaries (females) and testes (males) are the glands that influence emotion and physical development.Testosterone primary males hormoneEstrogen primary female hormoneMales and females have both estrogen and testosterone in their systems.Endocrine System

GonadsTesticles release androgens (male hormones)Ovaries release estrogens (female hormones)The presence of these chemicals influence male and female reproductive characteristics.


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