This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nerves of Abdomen, Subject name: Anatomy
The afferent impulses of cremastric reflex are transmitted through: 
Select and explain. 
A. Genitofemoral nerve, B. Ilioinguinal nerve, C. Pudendal nerve, D. Uiohvpogastic nerve
A: Genitofemoral nerve
Answer: A: Genitofemoral nerve 
Explanation: Ans: A (Genitofemoral nerve) Ref: Grays Anatomy 40th EdExplanation:Cremastreric reflexThe cremaster muscle derived from internal oblique which suspend the testis and elevates itThe reflex is elicited by lightly stroking the superior and medial part of the thigh in a downward directionThe normal response is contraction of cremaster muscle that pulls the testis on the side strokedIn children this reflex may be exaggeratedIn spine injury involving LI, E2 and torsion testis this reflex may be absentA fie rent-Femoral branch of Genito femoral nerveEfferent-Genital branch of Genito femoral nerve