“MY TOPIC”

‘ENDOCRINE SYSTEM’

Name: Jamaica MarananTeacher: Mr. Sherwin ManingasSection: III-I ALUMINUM

“ENDOCRINE GLANDS”• Endocrine Glands• Hypothalamus• Thyroid Gland• Parathyroid Gland• Thymus Gland• Adrenal Cortex• Adrenal Medulla•Major Endocrine Glands and their hormones:•Major Endocrine Glands and their hormones(cont.)

TOPICS:

“Endocrine Glands”BACK

Endocrine Glands•Endocrine system- Ductless glands that synthesize and secrete hormones •Endocrine system- A hormone is an organic substance needed by the body in minute quantities telicity a specific physiological response

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•Endocrine system- Hormone are produced by one part of the body that have an effect on specific target cells located in different parts of the body.

Hypothalamus•A small gland about 1.0 cm in diameter located at the base of the brain.• Intimate associated with the pituitary gland.• Secretes releasing hormones that travel via a portal system and stimulate the anterior pituitary.

“Hypothalamus”BACK

Thyroid Gland•Composed of two lobes, on each side of the trachea connected by an isthmus.• Secrete thyroxin that regulate growth and development.• Enlargement of this gland result in a condition known as goiter.

THYR

OID G

LAND

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Parathyroid Gland

• Small glandular bodies located on the dorsal surface of the thyroids• Secrete parathermones (PTH) that maintains the ration of calcium and phosphorus in the body

Para

thyr

oid

glan

d

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Thymus Gland•Located between the upper part of the sternum and the pericardium• A temporary organ which reaches greatest development at age 14 to 16• Secrete thyroxin that controls metabolic rate and involved in the formation of WBC

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Adrenal cortex

•Secretes cortical and aldosterone that causes gluconeogenesis and sodium retention and potassium excretion in the kidneys respectively.

“Adrenal Cortex”BACK

Adrenal Medulla

•Two small masses located above the kidneys.•Secrete epinephrine and nor epinephrine.•Promotes "flight or fight” reaction during emergency.

“Adrenal Medulla”BACK

Major endocrine glands and their hormones:GLAND Hormones Major function Disorder from

too much secretion

Disorder from too little secretion

Hypothalamus Releasing hormones

Stimulates anterior pituitary

Overactive anterior pituitary

Underactive anterior pituitary

Anterior pituitary Thyroid stimulating(TSH)

Stimulates thyroid

Overactive thyroid

Underactive thyroid

Anterior pituitary Adrenal corticotrophin(ACTH)

Stimulates adrenal cortex Overactive

adrenal cortexUnderactive adrenal cortex

Anterior pituitary Follicle stimulating(FSH)

Regulates egg and sperm production

Overactive ovaries/testes

Underactive ovaries/testes

Anterior pituitary Luteinizing(LH) or Interstitial cell Stimulating(ICSH)

Regulates sex hormones production

Over secretion of sex hormones

Under secretion of sex hormones

Anterior pituitary Pro lactin(PRL) Causes milk production after giving birth

Over secretion of milk

Under secretion of milk

Anterior pituitary Growth(GH) Promotes growthGigantism Dwarfism

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Major endocrine glands and their hormones(cont.)Glands Hormones Major

functionsDisorder from too much secretion

Disorder from too little secretion

Adrenal medulla

Epinephrine and nor epinephrine

Promotes "flight or fight "reaction

Pancreas Insulin Lower Blood Sugar Shock Diabetes

Mellitus

pancreas GlucagonRaises blood sugar

Testes Androgen(testosterone)

Promotes secondary male characteristics

Ovaries Estrogen and progesterone

Promotes secondary female characteristics

“THANK YOU SO MUCH !!

By: Jamaica O. MarananIII-I Aluminum