Multiple choice Which of the following structures contribute to seminal plasma? Testes + seminal vesicle + prostate + bulbourethral gland Seminal vesicle + prostate Seminal vesicle + prostate + bulbourethral gland Prostate + bulbourethral gland Reveal answer Fill a bubble to check yourself C Correct answer Explanation Secretions of seminal vesicle, prostate and bulbourethral gland contribute to seminal plasma.