Endocrine System Intro

Hormone regulation operates under which type of feedback mechanism?

• positive feedback

• negative feedback

• zero feedback

• Hormones are not regulated

Tags

NGSS.HS-LS1-3

Which of the following describes negative feedback?

• the production of testosterone signals the hypothalamus to STOP producing testosterone

• the release of oxytocin signals to the brain to continue releasing oxytocin

• the pituitary gland releases luteinizing hormone

Tags

NGSS.HS-LS1-3

All of the following are endocrine organs EXCEPT

• thyroid gland

• hypothalamus

• adrenal glands

• lymph nodes

Tags

NGSS.HS-LS1-3

Which of the following is a function of the endocrine system?

• maintain homeostasis through regulation of growth, metabolism, and sexual development

• provide the body with defense mechanisms to protect against pathogens

• provide boundaries and protective surfaces to lubricate and line vital organs

• propagate electrical impulses to communicate information between brain, spinal cord, muscles, and sensory organs

Tags

NGSS.HS-LS1-3

What does endocrine mean?

• secretions released outside the body

• electrical information sent within the body

• secretions released inside the body

• particles sent between adjacent cells

Which structure within the brain controls the pituitary gland?

• the pineal gland

• thymus gland

• thyroid gland

• hypothalamus

Which hormone induces a positive feedback mechanism by causing increasing frequency of contractions during childbirth

• prolactin

• progesterone

• oxytocin

• estrogen

Which hormone regulates water balance by reducing the amount of water leaving the body

• aldosterone

• antidiuretic hormone

• growth hormone

• thyroxine

Tags

NGSS.HS-LS1-3

which hormone causes the stomach to produce acid to digest food?

• secretin

• glucagon

• gastrin

• insulin

A hormone antagonist is one that has the opposite function. The hormone antagonist of insulin is _________

• glucagon

• gastrin

• secretin

• calcitonin

Tags

NGSS.HS-LS1-3