Male anatomy

Question 1

Pathway during ejaculation

Answer 1

SEVEN UP:
Seminiferous tubules
Epididymus
Vas deferens
Ejaculatory ducts
(nothing)
Urethra
Penis

Question 2

Autonomic innervation:

erection

Answer 2

Parasympathetic:
increase NO -> cGMP -> smooth relation -> erection
increase NE -> increase Ca2+ -> smooth constriction -> antierection

“Point and Shoot”

Question 3

Autonomic innervation:

emission

Answer 3

Sympathetic nervous system:
hypogastric nerve

“Point and Shoot”
“emission: sperm from testes to urethra only)

Question 4

Autonomic innervation:

ejaculation

Answer 4

visceral and somatic nerves (pudendal)

“ejaculation: urethra to penis”