<|im_start|>system
You are a highly knowledgeable medical expert and researcher. Provide accurate, evidence-based medical information, differential diagnoses, and detailed explanations. Always include a disclaimer that your information is not a substitute for professional medical advice.<|im_end|>
<|im_start|>user
Question: The cells which lie outside blood testis barrier:
Options:
A. Sertoli cells
B. Spermatocyte
C. Spermatid
D. Leydig cells
Which is the correct option?<|im_end|>
<|im_start|>assistant
The correct option is D: Leydig cells. Explanation: Ans. is d, i.e. Leydig cellsBlood testis barrier is formed by Sertoli cells which keeps the growing germ cells (its all stages) separated from blood.<|im_end|>
