Question

major function of the endocrine system
what is a major function of the endocrine system?
produces immediate, short - lasting effects
releases hormones into the bloodstream to reach receptors on target cells
communicates directly with target cells through the use of neurotransmitters
secretes products into ducts that lead to body surfaces or cavities

Explanation:

The endocrine system consists of glands that secrete hormones. Hormones are chemical messengers. They are released into the bloodstream. Then, they travel to target cells where they bind to specific receptors. This is a key characteristic of the endocrine system's function.

• The first option ("Produces immediate, short - lasting effects") is more characteristic of the nervous system.
• The third option ("Communicates directly with target cells through the use of neurotransmitters") is also a nervous system function. Neurotransmitters are used in neural communication.
• The fourth option ("Secretes products into ducts that lead to body surfaces or cavities") describes exocrine glands, not endocrine glands.

Answer:

Releases hormones into the bloodstream to reach receptors on target cells