Podcast
Questions and Answers
What is required for chemical haptens to induce sensitization?
What is required for chemical haptens to induce sensitization?
- Presence in the bloodstream
- Activation of type 1 T-helper cells
- Interaction with Langerhans cells
- Attachment to carrier proteins (correct)
Which cells process complete antigens and present them to type 1 T-helper cells in regional lymph nodes?
Which cells process complete antigens and present them to type 1 T-helper cells in regional lymph nodes?
- Platelets
- Macrophages
- B-cells
- Langerhans cells (correct)
What characterizes the immune response upon subsequent exposure to the same antigen after sensitization?
What characterizes the immune response upon subsequent exposure to the same antigen after sensitization?
- Dermal infiltration and spongiosis (correct)
- Reduced inflammation
- Enhanced oxygen absorption
- Increased blood clotting
Which of the following is NOT a common contact allergen listed in the text?
Which of the following is NOT a common contact allergen listed in the text?
Which substance found in some mouthwashes is listed as a common contact allergen?
Which substance found in some mouthwashes is listed as a common contact allergen?
What adverse skin reaction can be caused by Thimerosal (Merthiolate) according to the text?
What adverse skin reaction can be caused by Thimerosal (Merthiolate) according to the text?
What is the primary factor that determines the severity of a chemical burn?
What is the primary factor that determines the severity of a chemical burn?
Which type of burn can occur when necrotic tissue acts as a chemical reservoir, leading to continued cutaneous damage or systemic injury?
Which type of burn can occur when necrotic tissue acts as a chemical reservoir, leading to continued cutaneous damage or systemic injury?
What is the recommended action for an acid spill on the skin?
What is the recommended action for an acid spill on the skin?
Which type of dermatitis is a delayed (T-cell mediated) hypersensitive reaction?
Which type of dermatitis is a delayed (T-cell mediated) hypersensitive reaction?
Which anatomic site is considered the most sensitive to irritants?
Which anatomic site is considered the most sensitive to irritants?
Which individuals are considered the most sensitive to irritant dermatitis?
Which individuals are considered the most sensitive to irritant dermatitis?
What type of hypersensitivity reaction is photoallergy?
What type of hypersensitivity reaction is photoallergy?
What is required for photoallergy to occur?
What is required for photoallergy to occur?
What is the mechanism behind photoallergy and allergic contact dermatitis?
What is the mechanism behind photoallergy and allergic contact dermatitis?
What type of hypersensitivity reaction causes urticaria?
What type of hypersensitivity reaction causes urticaria?
What is the cause of seasonal urticaria?
What is the cause of seasonal urticaria?
What can cause exogenous hyperpigmentation?
What can cause exogenous hyperpigmentation?
What is the most evident acute feature of UV radiation exposure?
What is the most evident acute feature of UV radiation exposure?
Which of the following environmental conditions does NOT affect UV-induced injury?
Which of the following environmental conditions does NOT affect UV-induced injury?
Which of the following is NOT listed as a characteristic skin change induced by chronic exposure to radiation?
Which of the following is NOT listed as a characteristic skin change induced by chronic exposure to radiation?
What types of malignant skin lesions are mentioned as resulting from chronic exposure to radiation?
What types of malignant skin lesions are mentioned as resulting from chronic exposure to radiation?
What type of ultraviolet light is most commonly responsible for acute phototoxic reactions?
What type of ultraviolet light is most commonly responsible for acute phototoxic reactions?
Which of the following statements about phototoxic reactions is NOT true?
Which of the following statements about phototoxic reactions is NOT true?
What is the primary function of the skin in relation to xenobiotics and pollutants?
What is the primary function of the skin in relation to xenobiotics and pollutants?
How does the skin help in temperature regulation?
How does the skin help in temperature regulation?
Which of the following is NOT a function of the skin as explained in the text?
Which of the following is NOT a function of the skin as explained in the text?
How does the skin protect from microbes according to the text?
How does the skin protect from microbes according to the text?
What happens when the skin reacts to noxious physical agents?
What happens when the skin reacts to noxious physical agents?
How does the skin respond to deep cuts like from knives according to the text?
How does the skin respond to deep cuts like from knives according to the text?
