Endocrine System Review

Insulin works as an antagonist to _________ to help regulate blood sugar levels:

• oxytocin

• glucagon

• testosterone

• thyroid hormone

Which is NOT a function of oxytocin?

• stimulation of uterine contractions

• stimulation of menstruation

• stimulation of breast milk ejection

• labor induction

• postpartum bleeding control

The chemical messengers of the endocrine system are known as:

• stimuli

• neurons

• effectors

• hormones

By causing the body to reabsorb sodium, Aldosterone regulates _______________.

• blood glucose

• blood calcium

• blood pressure

• blood pH

The hormone that appears to regulate our circadian rhythms like our sleep-wake cycle is:

• thyroxine (T4)

• progesterone

• glucagon

• melatonin

The secondary sex characteristics brought about by testosterone do NOT include:

• development of muscle mass

• deepening/lowering of the voice

• growth of facial hair

• development of heavier bones

• development of breasts

Which of the following is NOT produced by the ANTERIOR lobe of the pituitary gland?

• thryoid stimulating hormone (TSH)

• oxytocin

• prolactin (PRL)

• luteinizing hormone (LH)

The "fight or flight" response triggers the release of:

• growth hormone

• epinephrine

• melatonin

• prolactin (PRL)

• antidiuretic hormone (ADH)

Which of these 2 hormones regulates calcium levels in the body?

• T3 and T4

• calcitonin and parathyroid hormone

• melatonin and glucocorticoids

• oxytocin and prolactin

• insulin and glucagon

Using the image: Identify #1, the gland that produces melatonin which regulates when we sleep and wake.

• pituitary

• pineal

• pancreas

• parathyroid