Overview of the Endocrine System

These flashcards cover the key concepts of the endocrine system, including its structure, functions, and comparisons with the nervous system.

What is the main function of the endocrine system?

It is composed of ductless glands that synthesize and secrete hormones.

How do hormones travel to their target cells?

Hormones are released into interstitial fluid, enter the blood, and are then transported throughout the body.

What do target cells have that allows them to respond to hormones?

Target cells have specific receptors for hormones to which they can bind and respond.

How do the endocrine and nervous systems compare in terms of their control methods?

Both release ligands, or chemical messengers, that bind to receptors on target cells, but the endocrine system transmits hormones through the blood and targets any cells with the right receptors.

What characterizes the reaction time and effects of the endocrine system?

The endocrine system has longer reaction times and longer-lasting effects ranging from minutes to weeks.

What are some general functions of hormones in the endocrine system?

Regulating development, growth, metabolism, maintaining homeostasis, controlling digestive processes, and managing reproductive activities.

How do hormones help maintain homeostasis in the body?

They regulate blood solute concentrations, blood volume, cellular concentration, and platelet number.

What role do hormones play in digestion?

Hormones influence secretory processes and the movement of materials in the digestive tract.

In what ways do hormones affect reproductive activities?

Hormones impact the development and function of reproductive systems and the expression of sexual behaviors.