21 Questions
What is the primary role of relaxin?
Soften the pubic symphysis to prepare for birth
Which hormone stimulates the release of hydrochloric acid in the stomach?
Gastrin
What is the function of EPO produced in the kidneys?
Stimulates erythrocyte production in the bone marrow
What is the primary role of placenta in hormone production?
Produces and secretes estrogens, progesterone, relaxin, hCG, and hPL
Which hormone is responsible for decreasing blood glucose levels?
Insulin
What is the main function of leptin in adipose tissue?
Binds to brain neurons to promote satiety after a meal and increase hunger if levels are low
Which hormone contributes to insulin resistance and seems to increase with age?
Insulin-like Growth Factor-1
Which hormone decreases with age, leading to a decline in ovarian function and hormone levels?
Testosterone
What is the immediate effect of Hepcidin on iron release from cells?
Blocks iron release
Which hormone decreases with age, leading to a lower metabolic rate?
Thyroid hormone
What is the primary difference between autocrine and paracrine signaling?
The target cells in autocrine signaling are different from the signaling cell, while in paracrine signaling, they are the same.
Which type of hormone is derived from modified amino acids tryptophan and tyrosine?
Amine hormones
What is the role of cAMP in hydrophilic hormone signaling?
It initiates a phosphorylation cascade to activate proteins in the cytosol.
What effect do cells exhibit during downregulation in response to excessive hormone levels?
They decrease receptors and become less reactive to excessive hormone levels.
Which command center of the endocrine system is responsible for receiving information from both endocrine and neural systems?
The pituitary gland
Which hormone stimulates uterine contraction and dilation of the cervix?
Oxytocin
Which hormone is responsible for promoting protein synthesis, tissue building, and stimulating liver to break down glycogen for glucose release?
Growth Hormone (GH)
Which hormone regulates the function of the gonads and stimulates the production and maturation of sperm and ova?
Luteinizing Hormone (LH)
Which hormone is responsible for influencing metabolic rate, nutrient breakdown for ATP production, and increasing body temperature?
Thyroid hormone
Which hormone is released by the thyroid to decrease blood calcium levels?
Calcitonin
What is the main role of Parathyroid Hormone (PTH) in calcium regulation?
Increases blood calcium levels by releasing calcium from bones.
Test your knowledge of the endocrine system with this quiz covering an overview of chapter 17. Explore the functions and types of chemical signaling, as well as the organs and glands involved in hormone secretion.
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