Human Anatomy Chapter 17 HW & Quiz

Adenylyl cyclase is a membrane enzyme. True False

True

A newly developed pesticide has been observed to bind to an intracellular hormone receptor. If ingested, residue from this pesticide could disrupt levels of ________. a) melatonin b) growth hormone c) insulin d) thyroid hormone

thyroid hormone

Melatonin does not produce an antioxidant effect. True False

False

The plasma membrane is hydrophilic. True False

False

Which of the following is an anterior pituitary hormone? a) TSH b) cortisol c) oxytocin d) ADH

TSH

Melatonin is produced in the Pineal Gland. True False

True

Which of the following statements about the thyroid gland is true? a) all of the above b) The parathyroid glands are embedded within it. c) It is located anterior to the trachea and inferior to the larynx. d) It manufactures three hormones.

all of the above

Which of the following hormones contributes to the regulation of the body's fluid and electrolyte balance? a) antidiuretic hormone b) all of the above c) luteinizing hormone d) adrenocorticotropic hormone

antidiuretic hormone

The secretion of thyroid hormones is controlled by _______ . a) thyroglobulin from the thyroid's parafollicular cells b) thyroxine from the anterior pituitary c) TSH from the hypothalamus d) TSH from the anterior pituitary

TSH from the anterior pituitary

Iodide ions cross from the bloodstream into follicle cells via ________. a) simple diffusion b) active transport c) osmosis d) facilitated diffusion

active transport

Which of the following can result from hyperparathyroidism? a) convulsions b) fractures c) increased bone deposition d) all of the above

fractures

The adrenal glands are attached superiorly to which organ? a) kidneys b) hypothalamus c) thyroid d) liver

kidneys

The hypothalamus is functionally and anatomically connected to the posterior pituitary lobe by a bridge of ________. a) nerve axons b) blood vessels c) cartilage d) bone

nerve axons

Chemical signaling that affects neighboring cells is called ________. a) autocrine b) paracrine c) neuron d) endocrine

paracrine

What cells secrete melatonin? a) retinal cells b) melanocytes c) pinealocytes d) suprachiasmatic nucleus cells

pinealocytes

When blood calcium levels are low, PTH stimulates _______ . a) the activity of osteoclasts b) a reduction in calcium absorption from the intestines c) urinary excretion of calcium by the kidneys d) the activity of osteoblasts

the activity of osteoclasts

The development of a goiter indicates that ________. a) there is hypertrophy of the thyroid's follicle cells b) the anterior pituitary is abnormally enlarged c) the anterior pituitary is secreting excessive growth hormone d) there is an excessive accumulation of colloid in the thyroid follicles

there is an excessive accumulation of colloid in the thyroid follicles

cAMP forms outside the cell. True False

False

Endocrine glands ________. a) secrete hormones that travel through a duct to the target organs b) secrete chemical messengers that travel in the bloodstream c) release neurotransmitters into the synaptic cleft d) include sebaceous glands and sweat glands

Secrete chemical messengers that travel in the bloodstream

The gonads produce what class of hormones? a) peptide hormones b) catecholamines c) amine hormones d) steroid hormones

steroid hormones