Flashcards in Endocrine System Deck (50)
What is the second major control system of the body
What is the difference between the endocrine system and nervous system?
Endocrine system uses chemical impulses, hormones
arouses the body tissue and cells by stimulating changes in their metabolic activity. This includes growth, development, and physiological homeostasis
can be steriods or amino acid based molecules
How does a hormone travel?
Through the blood
Cells within an organ that respond to a certain hormone
Two functional lobes of the pituitary
adenohypophysis and neurohypophysis
stalk attaching the pituitary to the hypothalamus
Which part of the pituitary secretes the 4 tropic hormones?
Hormones that have other endocrine glands as their target
Is the posterior pituitary an endocrine gland?
Why is the posterior pituitary not considered an endocrine gland?
1. It does not synthesize the hormones it releases. 2. it acts as a storage area for two neurohormones transpported to it
What are the tropic hormones of the pituitary gland?
1. Thyroid stimulating hormone (tsh). 2. follicle stimulating hormone ( FSH). 3. Luetenizing hormone (LH) 4. Adrenocorticotropic hormone (ACTH)
TSH target gland
Stimulation of thyroid hormones
Target of follicle stimulating hormone
Ovaries and testes
Effects of FSH
Ovaries- stimulates ovarian follicle maturation and estrogen production. Testes- Stimulates sperm production
Target cell of LH
Ovaries and testes
Effects of LH
Stimulates ovulation and triggers ovarian production of estrogen and progesterone. Males- Stimulates testosterone production
Target of ACTH
Effects of ACTH
Stimulates the release of glucocorticoids and androgens
Non tropic hormones of the anterior pituitary gland
Growth hormone (GH) and Prolactin (PRL)
Target organs of growth hormone
liver, muscle bone, and cartilage
Effects of growth hormone
Stimulates body growth and protein synthesis. mobilizes fat and conserves glucose.
Target organs of prolactin
Mammary glands of breast
Effects of prolactin
Stimulates milk production
Hormones stored by posterior pituitary gland
oxcytocin and antidiarectic hormone
Target of antidiretic hormone