Anatomy Flashcards
What is meant by the perineum?
A shallow space that lies between the levator ani and the perineal skin
What structures pass through the levator ani muscle in the male?
Rectum
Urethra
What structures pass through the levator ani muscle in the female?
Urethra
Vagina
Rectum
What are the nerve roots of the pudendal nerve?
S2, S3 and S4
What types of nerve fibres doe the pudendal nerve contain?
Somatic motor - to levator ani and perineal muscles
Somatic sensory - from the perineum
Symphathetic (as in all spinal nerves)
Describe the route taken by sperm from production to fertilisation
- Seminiferous tubules
- Rete testes
- Epididymis
- Vas deferens (travels in spermatic cord)
- Ejaculatory duct
- Prostatic urethra
- Membranous urethra
- Spongy urethra
- External urethral meautus of penis
Then….
- Vagina
- Cervix
- Uterine Tube
How is fluid from the pouch of Douglas drained?
Via a needle placed through the posterior fornix of the vagina
Name the structure formed by a double layer of peritoneum, extending between the uterus and the lateral pelvic walls and floor
Broad ligament
What is a cystocele?
Hernial protrusion of the bladder into the vaginal wall
What is a rectocele?
Hernial protrusion of the rectum into the vaginal wall
What nerve supplies the levator ani muscle?
Nerve to levator ani
This comes from the S3, 4 and 5 sacral plexus
What is the name give to the bunch of collagenous and elastic tissue into which the perineal muscles attach?
Perineal body
What ligaments are responsible for holding up the breast?
Suspensory ligaments
Where would you find the retromammary space?
Between the fascia and the breast
What muscles lie deep to the breast?
Pectoralis major
Serratus anterior
From what ribs do the bed of the breast extend?
Ribs 2 - 6
Where does most lymph from the breast drain?
Ipsilateral axillary lymph node and then to the supraclavicular nodes
Where might lymph from the lower inner breast quadrant drain?
Abdominal lymph nodes
Where does lymph from the upper limb drain?
Axillary lymph nodes
What is meant by level 1 axillary lymph nodes?
Inferior and lateral to pectoralis minor
What is meant by level 2 axillary lymph nodes?
Deep to pectoralis minor
What is meant by level 3 axillary lymph nodes?
Superior and medial to pectoralis minor
Which two arteries of the pelvis/perineum do not arise from the internal iliac artery?
Gonadal artery
Superior rectal artery
What three branches come off the posterior trunk of the internal iliac artery?
Iliolumbar
Lateral sacral
Superior gluteal
What does the internal iliac artery initially split into?
An anterior and posterior trunk