This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Physiology
Androgen is secreted by 
Select and explain. 
A. Leyding cell, B. Seoli cell, C. Cowper's gland, D. Intermediate cells
A: Leyding cell
Answer: A: Leyding cell 
Explanation: Any steroid hormone that promotes male secondary sex characters. The two main androgens are androsterone and testosterone. The androgenic hormones are internal endocrine secretions circulating in the bloodstream and manufactured mainly by the testes under stimulation from the pituitary gland.Ref: Ganong&;s review of medical physiology; 24th edition; page no:-428