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Endocrine System (Thyroid gland (synthesized hormones that regulate the…
Endocrine System
Thyroid gland
synthesized hormones that regulate the bodys metabolism and control the level of calcium and the blood
T3, T4, and calcitionin
in the neck
requires iodine from food intake
Pituitary Gland
master gland of the body
at the base of the brain
Divided into 2 sections
Anterior
ACTH,TSH, GH, FSH,MSH, LH
Posterior
ADH, Oxytocin
Acromegaly
over secretion of GH in an adult
Cause
benign tumor of the pituitary system
Bones of the hands and feet enlarge, skin and tongue thicken, slurred speech
Gigantism
is acromegaly but occurs before puberty hits
Results
exessive growth of long bones
extreme tallness
decreased sexual development
at times mental retardation
Treatment
surgical removal of tumor
Dwarfism
Result
under secretion of GH
Cause
tumor, infection, genetic factors or injury
Characterized
small body size, short extremities, lack of sexual development
Diabetes Insipidus
decreased amount of vasopressin
Cause
low levels of ADH, prevents water from being absorbed in the kidneys
S/S
Polyuria, polydipsa, dehydration
Parathyroid Gland
attached to thyroid
Parathromone
regulate amount of calcium in the blood
Secretes substances
Called hormones
Hormones
secreted directly into blood stream
perform many different functions
stimulates exocrine gland to produced secretions
stimulate other endocrine gland
regulate growth and development
Regulate metabolism
Maintain fluid and electrolyte balance
control various sex processes
Chemical substance
Produced and secreted by the endocrine glands
Chemical messengers
Groups of ductless glands
consists of pituitary, parathyroid, thyroid, adrenal gland, pancreas, ovaries, testies, thymus, pineal gland
Goiter