Podcast
Questions and Answers
Which substances are classified as autacoids?
Which substances are classified as autacoids?
- Adrenaline and acetylcholine
- Endogenous peptides and cytokines
- Angiotensin and homones
- Histamine and serotonin (correct)
What is a common characteristic of autacoids when they are released?
What is a common characteristic of autacoids when they are released?
- They have immediate effects on all cells
- They affect distant cells
- They only affect the surrounding cells (correct)
- They remain inactive
What do autacoids and endogenous peptides, prostaglandins, leukotrienes, and cytokines constitute?
What do autacoids and endogenous peptides, prostaglandins, leukotrienes, and cytokines constitute?
- Neurotransmitters
- Local hormones
- Hormones
- Drugs (correct)
What is the role of histamine and serotonin in the body?
What is the role of histamine and serotonin in the body?
What was discovered about tissues containing substances that release physiologic effects?
What was discovered about tissues containing substances that release physiologic effects?
Which of the following substances are not carried by blood to produce effects in other organs?
Which of the following substances are not carried by blood to produce effects in other organs?
What is the reason why histamine and serotonin do not have any clinical application in disease treatment?
What is the reason why histamine and serotonin do not have any clinical application in disease treatment?
Which type of communication involves autacoids acting locally on the cell from which they are released?
Which type of communication involves autacoids acting locally on the cell from which they are released?
Which substances act like hormones, entering circulation and affecting distant organs?
Which substances act like hormones, entering circulation and affecting distant organs?
What role do neurotransmitters play in neural tissues?
What role do neurotransmitters play in neural tissues?
What is the main function of APUD cells described in the text?
What is the main function of APUD cells described in the text?
How can the complicated functions of some substances being a transmitter, hormone, and autocoid at the same time be explained?
How can the complicated functions of some substances being a transmitter, hormone, and autocoid at the same time be explained?
What actions do intestinal hormones have in the gastrointestinal system according to the text?
What actions do intestinal hormones have in the gastrointestinal system according to the text?
What type of molecules are most of the intestinal hormones mentioned in the text?
What type of molecules are most of the intestinal hormones mentioned in the text?
Which of the following is NOT listed as an intestinal hormone in the text?
Which of the following is NOT listed as an intestinal hormone in the text?
What is a characteristic of APUD cells mentioned in the text?
What is a characteristic of APUD cells mentioned in the text?
