Hormonal Control: Ex Phys

neuroendocrine system

• nervous system and andocrine system work cooperatively to regulate body function

endocring system

• secreted by specialized glands

• travels through blood stream

• acts on distant target cell

• acts by binding to specific receptor

steroid hormones

synthesized from cholesterol

protein/peptide hormones

2-3 up to thousands of amino acids linked together

amino acid derived

small molecules synthesized by degradation of amino acids

blood hormone concentration are affected by…..

• rate of secretion

• rate of breakdown

• quantity of transport

• plasma volume

• sex, age, etc

steroid hormones…..

enter cell

nonsteroid hormones…..

can’t pass through the cell membrane

pituitary gland

• anterior

• posterior

posterior pituitary

• oxytocin

• antidiuretic hormone (ADH)

anterior pituitary

• growth hormone (GH)

• thyrotropin (TSH)

• follicle-stimulation hormone (FSH)

• luteinizing hormone (LH)

• prolactin (PRL)

• adrenocorticotropin (ACTH)