Our USMLE Step 1 online live course is led by top doctors who have successfully crashed the exam. Tailored for both students and graduates, it offers comprehensive knowledge, hand on training, private mentoring and guidance, questions solving workshops and more to make sure you're well-prepared to ace the exam.
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Medical students | Medical graduates | M.D
200 hours of interactive learning
240 articles focused on Usmle step 1
440 Usmle step 1 learning videos
1550+ Usmle Step 1 practice questions.
2500+ Flashcards and quizzes
6 Usmle step 1 question practice workshops
Study plan creation
One private session with a medical tutor
One assessment exam simulates the real environment
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الدورة تشمل:
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WHAT USERS SAY
بروكالي منصة ممتازة جدا شرح الدكاترة كامل ومفصل مفيد جدا كل الاحترام بارك الله فيكم
أية خاطر
WHAT USERS SAY
بروكالي هي أفضل مؤسسة تعليمية طبية / فهي تبسط المواد الأكثر تعقيدًا / أنصح أي شخص بالتسجيل في بروكلي لأنني جربت العديد من خيارات التدريس الطبي الأخرى ولا أستطيع المقارنة بينها
خالد أسير
Major topic: Basic science
Subtopic: Immunology
Question: what cell is responsible for the reaction in type IV hypersensitivity reaction?
Requirements: Mention the role of T lymphocytes in type IV hypersensitivity reaction.
A 3-year-old boy experiences recurrent sinusitis and an episode of severe pneumonia. As part of his evaluation, Candidaextract is injected intradermally. Forty-eight hours later, he returns to the clinic with a firm nodule measuring 16 mm in diameter, where the extract was injected. Which of the following cell types is most likely responsible for the reaction observed in this patient?
Answers:
B lymphocytes
Eosinophils
Mast cells
Neutrophils
T lymphocytes
5. T lymphocytes