Chapter 10 Flashcards
Categories of hormones
Peptides
Steroids
Release of hormones are controlled by
Nervous system
Action of other hormones
Negative feedback mechanisms
Hypothalamus
Controls secretion of pituitary gland
What does neurosecretory cells produce
Antidiuretic hormone
Oxytocin
Posterior pituitary
Stores hypothalamic hormones and oxytocin
Adh
Causes more water to be reabsorbed into kidney capillaries
Raises blood pressure
Oxytocin
Causes uterine contraction during child birth
Causes milk let down when baby is nursing
Anterior pituitary
Controlled by hypothalamic hormones.
Hormones that affect other glands
Thyroid-stimulating hormone
Adrenocorticotropic hormone
Gonadotropic hormone
Thyroid gland
Increase metabolic rate
Stimulate all cells of body
Calcitonin
Helps control blood calcium levels
Secreted when blood calcium levels rise
Brings deposit of calcium to bones
Parathyroid gland
Regulates blood phosphate levels
Regulated blood calcium levels.
Adrenal medulla
Secretes epinephrine and norepinephrine
Causes fight or flight
Short term response to stress
Adrenal cortex
Outer portion
Under control of acth
Hormones adrenal cortex produces
Make and female sex hormones
Mineralcorticiods
Glucocorticoids
Glucocorticoids
Raised blood glucose levels
Mineralcorticiods
Targets kidneys
Promotes renal absorption of sodium and water
Promotes renal excretion of potassium
Pancreas
Two types of tissue
Exocrine and endocrine
Exocrine
Secretes digestive juices
Endocrine
Produces insulin and glucagon
Diabetes mellitus
Body cells are unable to take up and or metabolize glucose
Type 1
Pancreas doesn’t produce insulin
Type 2
Cells do not respond to insulin
Testes
Produce androgens
