Endocrine System: Hormone Secretion Effects and Feedback Loops

What is the result of GH hyposecretion in children?

Dwarfism

What is the result of GH hypersecretion in children?

Gigantism- abnormally rapid and extreme growth in height, muscles, and organs, in children and adolescents

What is the result of GH hypersecretion in adults?

Acromegaly- causing the body's soft tissues, bones (hands, feet, face), and organs to gradually enlarge

What condition is caused by ADH hyposecretion?

Diabetes insipidus (excess urine, dehydration)

What is the result of ADH hypersecretion?

SYNDROME OF INAPPROPRIATE WATER SECRETION- fluid retention, headache, disorientation

What is the result of thyroid hormone hyposecretion in children?

Cretinism- intellectual disability

What is the result of thyroid hormone hyposecretion in adults?

Myxedema (low metabolism)

What is the result of thyroid hormone hypersecretion?

Graves' disease

What is the result of PTH hyposecretion?

Tetany (muscle spasms)

What is the result of PTH hypersecretion?

Bone softening, fractures

What condition is caused by insulin hyposecretion?

Diabetes mellitus (high blood glucose)

What is the result of insulin hypersecretion?

Hypoglycemia (low blood glucose)

What is a negative feedback loop in hormone regulation?

Hormone release decreases when normal levels are restored; stabilizes the body.

What is a positive feedback loop in hormone regulation?

Amplifies a response; example: oxytocin during labor.