Endocrine system

T or F: The endocrine system's means of control is much slower than the nervous system.

• True

• False; faster

The endocrine system uses chemical messengers known as ____.

• Neurons

• Hormones

• Microglia

• Neurotransmitters

T or F: All cells respond to endocrine system stimulation.

• True

• False; only cells with proper receptors

T or F: The secretion of most hormones is regulated by a positive feedback system.

• True

• False; negative

Which of the following is NOT true about the mode of action for steroid-based hormones?

• Binds to a receptor in the cell's nucleus

• Is lipid soluble

• Activates a gene to transcribe messenger RNA

• Acts through a second messenger

Which hormone and target organ pair is incorrect?

• Prolactin; mammary glands

• GH; bones and muscles

• FSH & LH; adrenal cortex

• TSH; Thyroid

Inadequate amounts of thyroxine hormone would lead to all the following EXCEPT:

• Tetany (muscular spasms)

• Goiter (enlarged thyroid gland)

• Creatinism (a type of dwarfism)

• Myxedema in adults (characterized by lethargy, hair loss, low bmr, and obesity)

Excessive urination without high blood glucose levels, dehydration, and thirst would be caused by insufficient amounts of which of the following hormones?

• Thyroxine

• Insulin

• PTH

• ADH

An abnormally large stature with relatively normal body proportions would be caused by an excess of which of the following hormones?

• PTH

• Growth hormone

• Thyroxine

• Androgens

ACTH, FSH, LH and ____ are tropic hormones.

• Cortisol

• TSH

• ADH

• PTH