lec quiz 6

Luteinizing hormone is considered a gonadotropin because of which one of the following reasons? It stimulates the growth and development of gonads, but only in females. It promotes the growth of reproductive organs in both males and females. It functions to complement the activity of TSH. It triggers the production of gonadotropin hormones. It stimulates the growth but not the development of gonads in males.

It promotes the growth of reproductive organs in both males and females.

A goiter results from low dietary iodine levels due to the activity of the anterior pituitary gland. as glucagon levels elevate. because thyroxine cannot be made, which results in high levels of TSH. because ADH levels rise controllably. because the hypothalamus cannot be inhibited without iodine.

because thyroxine cannot be made, which results in high levels of TSH

Insufficient production of growth hormone by the anterior pituitary may result in a drop in blood glucose levels. acromegaly. dwarfism. gigantism. diabetes insipidus.

dwarfism

Which one of the following hormone pairs is antagonistic, in that they have opposing effects? epinephrine, norepinephrine estrogen, progesterone glucagon, insulin oxytocin, prolactin thyroxine (T4) and triiodothyronine (T3)

glucagon, insulin

During times of stress, which one of the following glands stimulates the anterior pituitary to release ACTH? pancreas adrenal medulla anterior pituitary posterior pituitary hypothalamus

hypothalamus

The pituitary gland is often called the "master of the endocrine system" because it secretes eight different hormones that in turn regulate many of the other endocrine glands. all blood vessels must pass through the pituitary so hormones can be regulated. it contains neuroendocrine cells that activate many of the other endocrine glands. releasing and inhibiting factors for most other endocrine glands are released by the pituitary. all other hormones must be activated by enzymes released by the pituitary gland.

it secretes eight different hormones that in turn regulate many of the other endocrine glands.

Which of the following tissues/organs is NOT a member of the endocrine system? stomach kidney adrenal gland thyroid gland salivary gland

salivary gland

Which two endocrine glands exert the most control over blood calcium levels? adrenal cortex and thyroid thyroid and parathyroid thyroid and ovaries parathyroid and anterior pituitary anterior pituitary and adrenal cortex

thyroid and parathyroid