Endocrine System (WGVID)

What is a primary function of hormones in the human body?

• Transmitting fast, localized electrical signals.

• Regulating metabolism, growth, and homeostasis.

• Providing structural support to cells.

• Filtering waste products from the blood.

How do the endocrine and nervous systems primarily differ in their communication methods?

• The nervous system uses hormones, while the endocrine system uses electrical signals.

• The endocrine system sends fast, localized messages, while the nervous system sends slower, widespread messages.

• The nervous system uses neurons for fast, localized messages, while the endocrine system uses blood for slower, widespread messages.

• Both systems use only electrical signals for communication.

How do hormones interact with their target cells?

• Hormones bind to any cell they encounter in the bloodstream.

• Water-soluble hormones pass directly through the cell membrane to bind with internal receptors.

• Lipid-soluble hormones bind to receptors on the outside of the cell membrane.

• Hormones bind to specific receptors on or within target cells to alter their activity.

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Which two hormones are released by the pancreas to regulate blood sugar, and what is their primary effect?

• Insulin, which lowers blood sugar, and glucagon, which raises blood sugar.

• Insulin, which raises blood sugar, and glucagon, which lowers blood sugar.

• Cortisol, which lowers blood sugar, and adrenaline, which raises blood sugar.

• CRH, which raises blood sugar, and ACTH, which lowers blood sugar.

How does the hormonal response of the HPA axis to stress compare to the nervous system's response?

• It comes on more slowly and takes longer to subside.

• It comes on more quickly and takes longer to subside.

• It comes on more slowly and subsides more quickly.

• It comes on more quickly and subsides more quickly.