Questions and Answers
Which of the following is a characteristic of endocrine glands?
They lack ducts and release hormones into the blood
What is the current scientific definition of hormones?
Non-nutrient chemicals acting as intercellular messengers produced in trace amounts
What type of coordination do hormones provide?
Special kind of coordination for continuously regulating cellular functions
How do endocrine and neural systems coordinate and regulate physiological functions?
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What distinguishes the endocrine system from the neural system in terms of coordination?
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Study Notes
Endocrine Glands Characteristics
- One characteristic of endocrine glands is that they produce and secrete hormones directly into the bloodstream.
Definition of Hormones
- Hormones are defined as chemical messenger molecules that are produced by endocrine glands and transported through the bloodstream to reach their target cells, tissues, or organs.
Hormone Coordination
- Hormones provide endocrine coordination, which is a type of coordination that involves the transmission of signals through chemical messengers.
Endocrine-Neural System Coordination
- The endocrine and neural systems coordinate and regulate physiological functions through a complex interplay between the two systems.
- The endocrine system regulates slow, long-term changes in physiological functions, while the neural system regulates rapid, short-term changes.
Endocrine vs Neural System Coordination
- What distinguishes the endocrine system from the neural system in terms of coordination is the type of signals used (chemical messengers vs electrical impulses) and the speed of transmission (slow and long-term vs rapid and short-term).
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