A&P pt.1

All of the following are true of steroid hormones except:

• are lipids
• are produced by the adrenal medulla
• bind to receptors inside the cell
• are reproduced by reproductive glands

Each of the following hormones is an amino acid derivative except:

• thyroid hormone
• epinephrine
• thyroid stimulating hormone
• melatonin

Steroid hormones:

• bind to intracellular receptors
• function by way of a second messenger system
• bind to receptors on the surface of the cell
• cannot diffuse through the cell membrane

A cell's hormonal sensitivities are determined by the:

• thickness of the cell membrane
• chemical nature of the hormone
• presence or absence of appropriate receptors 
• quantity of circulating hormone

The link between the a first messenger and second messenger in a cell that responds to peptide hormones is usually:

• calcium
• cAMP
• adenyl cyclase
• G protein

The most complex endocrine responses involve the:

• adrenal glands
• thyroid glands
• hypothalamus
• pancreas

Coordinating centers in the hypothalamus regulate the activities of the nervous and endocrine system by all of the following, EXCEPT:

• secreting releasing hormones that stimulate the production and release of hormones from the anterior pituitary gland
• secreting inhibiting hormones that inhibit the production and release of hormones anterior pituitary gland
• acting as an endocrine organ itself and releasing hormones 
• a modified positive feedback loop involving the pars intermedia of the pituitary gland

Each of the following hormones is produced by the adenohypophysis, EXCEPT:

• ACTH
• FSH
• ADH
• TSH

The hormone oxytocin:

• governs the levels of tissue androgens
• is responsible for milk production in the mammary glands
• promotes uterine contractions
• regulates blood pressure

Liver cells respond to growth hormone by releasing hormones called:

• prostaglandins
• glucocorticoids
• hepatic hormones
• somatomedins