The Endocrine System Practice Test

The practice test in the fifth unit, The Endocrine System, in the course Animal Anatomy and Physiology 1 at Penn Foster College.

The endocrine function of the pancreas is carried out by clumps of cells called

islets of Langerhans

Which of the following types of hydrophobic hormones are synthesized from cholesterol?

Steroid hormones

Which hormone stimulates uterine contractions during labor, stimulates milk production, and may have a role in mother-offspring bonding?

Oxytocin

Which type of gland secretes hormones into the bloodstream?

Endocrine

Salivary glands have a system of ducts through which they secrete saliva. What type of gland are salivary glands?

Exocrine

Glucocorticoids stimulate gluconeogenesis, causing what effect on the bloodstream?

Blood sugar increases

Diabetes mellitus can be caused by inappropriate regulation of the endocrine activity of which organ or organs?

Pancreas

Cells in the stomach produce which hormone?

Gastrin

_______ are hormone-like substances organized into nine families produced by a variety of body tissues.

Prostaglandins

Two endocrine glands that work together to control many other glands in the body are the

hypothalamus and pituitary glands

The adrenal glands are located on the _______ end of the kidneys.

cranial

The hypothalamus and pituitary gland produce hormones that stimulate the thyroid. When the level of thyroid hormones is sufficiently high, it inhibits the hypothalamus and pituitary gland from secreting thyroid-stimulating hormones. This provides an example of what type of regulation?

Negative feedback

What gland has both endocrine and exocrine functions?

pancreas

What's the physiological role of calcitonin?

Regulating calcium levels

Secretion of which hormone is thought to be regulated by daylight?

Melatonin

Which of the following are endocrine organs active during specific stages of life?

a-Pancreas

b-Thymus

c-Placenta

d-Pineal body

b-Thymus

c-Placenta

Peptide hormones

Hydrophilic; can be transported easily in the blood

Steroid hormones

Hydrophobic; require hydrophilic transport proteins to be transported in the blood

Monoamine hormones

Can be either hydrophilic or hydrophobic

Delta cell

Somatostatin

Beta cell

Insulin

Alpha cell

Glucagon

Which hormones does the hypothalamus produce?

a-Growth hormone

b-Antidiuretic hormone

c-Luteinizing hormone

d-Oxytocin

b-Antidiuretic hormone

d-Oxytocin

Which of the following are sex hormones?

a-Insulin

b-Progesterone

c-Somatostatin

d-Testosterone

b-Progesterone

d-Testosterone