Vet tech ch 11

What is the endocrine system composed of?

Ductless glands that secrete hormones into the bloodstream.

What does "endo-" and "-crine" mean?

"Endo-" means within, and "-crine" means to secrete or separate.

Name the main glands of the endocrine system.

Pituitary, thyroid, parathyroid, adrenal, pancreas, thymus, pineal, and gonads.

What is the function of the pituitary gland?

It secretes hormones that regulate various bodily functions and is controlled by the hypothalamus.

What hormones are secreted by the anterior pituitary gland?

TSH, ACTH, FSH, LH, ICSH, prolactin, GH, MSH.

What hormones are secreted by the posterior pituitary gland?

ADH and oxytocin.

What are the three hormones secreted by the thyroid gland?

Triiodothyronine (T3), thyroxine (T4), and calcitonin.

What is the function of the parathyroid glands?

They secrete parathormone, which regulates calcium levels.

What are the two parts of the adrenal glands and their secretions?

• Cortex (mineralocorticoids, glucocorticoids, androgens)

• medulla (epinephrine, norepinephrine).

What hormones does the pancreas secrete?

Insulin and glucagon.

What hormone does the thymus secrete?

Thymosin.

What is the role of the pineal gland?

It secretes melatonin and helps regulate circadian rhythms.

What are the female and male gonads?

Ovaries (female) and testes (male).

What hormones do the ovaries secrete?

Estrogen and progesterone.

What hormone do the testes secrete?

Testosterone.

Which anterior pituitary hormone stimulates milk production in females?

Prolactin.