Fill in the Blanks BIO CLEP: Endocrine SystemOnline version BIO CLEP: Endocrine System by Tharwat A 1 neurotransmitters homeostasis ductless hormones target blood adrenaline long The endocrine system and nervous system collaborate to regulate the body's functions and maintain . Endocrine system releases , nervous system releases . Epinephrine functions as both a hormone ( ) and a neurotransmitter . Hormones are produced in glands and travel through the to cells , tissues , or organs . They can produce immediate short - lived responses or dramatic - term developments . 2 messengers thirst bridge hypothalamus Tropic other TSH temperature hunger hormones stimulate glands to release hormones . Example : Thyroid - stimulating hormone ( ) stimulates the thyroid to release thyroxin . Other chemical include pheromones and nitric oxide ( NO ) . The acts as a between the endocrine and nervous systems . It sends signals to adrenal glands during stress and produces hormones like oxytocin and antidiuretic hormone . The hypothalamus regulates body , , and .