endorcine/exocrine Flashcards
(16 cards)
What are endocrine glands?
Glands that secrete hormones directly into the bloodstream.
What are exocrine glands?
Glands that release substances through ducts to a surface or organ.
How do endocrine and exocrine glands differ in secretion?
Endocrine → into blood; Exocrine → into ducts.
Do endocrine glands have ducts?
No, they are ductless.
Do exocrine glands have ducts?
Yes, they use ducts to transport their secretions.
Name three major endocrine glands.
Pituitary gland, thyroid gland, adrenal glands.
What does the pituitary gland secrete?
Hormones like growth hormone (GH), ACTH, and oxytocin.
What does the thyroid gland secrete?
thyroxine (T4) and triiodothyronine (T3) to regulate metabolism.
What does the adrenal gland secrete?
Cortisol, adrenaline, and aldosterone.
Name three exocrine glands.
Salivary glands, sweat glands, pancreas (partially).
What do salivary glands secrete?
Saliva, which contains enzymes like amylase.
What do sweat glands secrete?
Sweat, which helps regulate body temperature.
What does the exocrine pancreas secrete?
Digestive enzymes like trypsin and lipase into the small intestine.
What does the endocrine pancreas secrete?
Insulin and glucagon to regulate blood glucose levels.
What is the target of endocrine secretions?
Distant organs or cells via the bloodstream.
What is the target of exocrine secretions?
localized areas like the skin surface or intestinal lumen.
