Endocrine System Flashcards
Definition of endocrine:
secreting internally; helps maintain homeostasis; secrete hormones directly into the blood stream
Does endocrine glands have ducts?
No, ductless
Definition of hormones:
chemical messengers for the endocrine system, travel to distant cells
The regulation of hormone secretion occurs through a process called what?
negative feedback
Hormone problems occur when what is not functioning?
regulation is not functioning; self- regulating
The negative feedback process:
Brain—-Endocrine Gland—–Hormone level (repeat)
8 major glands:
- pituitary;
- parathyroid;
- thyroid;
- adrenal;
- kidney;
- pancreas;
- ovary;
- testes
Where is the Pit. Gland located in?
in diencephalon
The Pit. Gland AKA
Master Gland
The pit. gland communicates with the what?
hypothalamus; which is the interface between the nervous system (brain) and the endocrine system
What size is the pit gland?
size of a pea; dangles by a narrow stalk from the hypothalamus
2 lobes of the pituitary gland:
- Posterior Lobe;
2. Anterior Lobe
This lobe stores and releases 2 hormones produced by the hypothalamus- ADH and oxytocin
Posterior Lobe
What 7 hormones does the Anterior Lobe produce:
MSH; GH; Prolactin; TSH; ACTH; FSH; LH
What does the thyroid gland contain?
thyroid hormone (T3 and T4) and calcitonin
