Mast cells secrete- - DASH

Your AI-Powered Personal Tutor

Question

Mast cells secrete-

Histamine

Hippurin

Heamoglobin

Myoglobin

Solution

Please login to view the detailed solution steps...

Go to DASH

© All Rights reserved @ LearnWithDash

Step-by-Step Explanation 1. Introduction to Mast Cells Mast cells are a type of immune cell found in the connective tissues of the body. They are recognized by their distinct granules that store various chemical mediators. Among these mediators, one of the most important is histamine. 2. What is Histamine? Histamine is a bioactive compound that causes a variety of physiological effects. When released into surrounding tissues or the bloodstream, histamine can act as a vasodilator, meaning it widens blood vessels. This widening increases blood flow to the affected area, which is why it is involved in inflammatory and allergic responses. 3. Role of Histamine in Allergy During allergic reactions, mast cells often degranulate (release their granule contents) in response to allergens. The release of histamine leads to symptoms such as sneezing, runny nose, and itching. Additionally, histamine can constrict the smooth muscles of the airway, contributing to breathing difficulties in severe allergic responses. 4. Analysis of Other Options Hippurin: Not secreted by mast cells; related to urinary excretion. Haemoglobin: A respiratory pigment found in red blood cells. Myoglobin: A pigment that stores oxygen in muscle tissues. 5. Conclusion Among the listed options, the correct answer is histamine, because mast cells specifically store and secrete histamine, which plays a key role in inflammatory and allergic responses.

Subject Backlinks

Biology Subject Chemistry Subject Mathematics Subject Physics Subject Subjects Subject

Quiz Backlink

Parent Quiz 803558

Related Question Backlinks

Question 803808 Question 803814 Question 803799 Question 803816 Question 803793 Question 803820 Question 803791 Question 803826 Question 803789 Question 803828 Question 803787 Question 803830 Question 803783 Question 803836 Question 803777 Question 803840 Question 803775 Question 803842 Question 803773 Question 803847