Male Anatomy Flashcards
What does the Tunica vaginalis?
Outer covering membrane formed from peritoneum
What is the Tunica albuginea for?
It’s a fibrous covering that forms septa which separated testes into lobes
What is the Tunica vasculosa?
It’s a network of capillaries
What’s the seminiferous tubules for?
Produces spermatozoa
What are they Leydig cells?
They lie between seminiferous tubules and produces testosterone after puberty
What is the epididymis?
It’s the most twisted tubule and makes up the mass of the upper pole in the teste
What is the vas deferens in the teste?
It’s a duct formed from the epididymis as it leaves the scrotum in the spermatic cord.
What does the spermatic cord contain?
Vas deferens, blood, lymph vessels and nerves
Where does the Testis get a blood supply from?
Testicular arteries and veins
Where does the Testis get a blood supply from?
Testicular arteries and veins
Where does the nerve supply come from?
Branch of the 10th and 11th thoracic nerves
How are the seminal vesicle joined and what’s their purpose?
Posterior base of bladder, joined by vas deferens to form ejaculatory duct which is connected to urethra. This is to have alkaline seminal fluid that neutralises during intercourse, it also provides energy for spermatic and assist coagulation of seminal after intercourse
What is the prostate for?
Produces milky fluid called prostatic fluid composing 30% of volume semen.
What are the Bulbourethral glands?
They are pea sized glands inferior to prostate which produces alkaline fluid to protect spermatic and secrete mucus to lubricate the pen is before intercourse.
What is the glands pen is?
Expanded triangular distal covered with retractable foreskin
What ligaments is the penis supported by?
Fundiform and suspensory
What type of stimulus causes an increase in blood to the penis with in the corpus cavernosa and corpus spongiosum?
Parasympathetic
How does ejaculation occur?
Vas deferens contracts to squeeze spermatic to base of the penis. The prostate glands and seminal vesicle a release secretions to make seminal. Muscles as base of the penis they contract every 0.8 secs and releases ejaculate in up to 5 spurts.
How is make puberty triggered?
Triggered by Gonadotrophin releasing hormone from hypothalamus stimulating FSH and LH hormone. LH hormone produces testosterone.
