Artery Anatomy Playlist:
• Arteries Anatomy
Content:
0:00 Introduction
1:26 The 2+4+4 Rule
1:50 2 Branches to the Back Body Wall
1:55 Iliolumbar Artery (a. iliolumbalis)
2:24 Iliac Branch (r. iliacus)
2:52 4 Branches Leaving the Pelvis
2:58 Obturator Artery (a. obturatoria)
4:59 Superior Gluteal Artery (a. glutea superior)
5:30 Inferior Gluteal Artery (a. glutea inferior)
6:02 Internal Pudendal Artery (a. pudenda interna)
7:56 4 Branches Supplying Structures Within the Pelvis
8:02 Umbilical Artery (a. umbilicalis)
9:00 Inferior Vesical Artery (Aa. vesicales inferiores)
9:17 Uterine Artery (a. uterina)
10:43 Middle Rectal Artery (a. rectalis media)
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Easy way to remember the side branches of Internal Iliac Artery / Mnemonics for Internal Iliac (A. Iliaca Interna):
- 2+4+4
- 2 arteries to the back body wall:
○ Iliolumbal Artery (arteria iliolumbalis): Divides into Lumbar branch (r. lumbalis) and Iliac branch (r. iliacus)
○ Lateral Sacral Artery (Arteria sacrales laterales): give off spinal branches (rr. spinales)
- 4 arteries leaving the pelvic cavity:
○ Obturator Artery (A. obturatoria): Goes through obturator canal and divides into anterior and posterior branches (r. anterior et r. posterior).
§ Side branches:
§ Pubic branch (r. pubicus): communicate with pubic branch of the inferior epigastric artery and form corona mortis
§ Acetubular branch (r. acetabularis): which goes underneath the transverse acetabular ligament and runs inside the ligament of the femoral head to supply caput femoris
○ Superior Gluteal Artery (A. glutea superior): leaves above the piriformis muscle
○ Inferior Gluteal Artery (A. glutea inferior): leaves below the piriform muscle
○ Internal pudendal artery (A. pudenda interna): leaves below the piriform muscle, and continues in the space between the perineal muscle and muscles of the pelvic diaphragm and terminates as the deep and dorsal arteries of the penis (a. dorsalis penis et a. profunda penis) or the deep and dorsal arteries of the clitoris (a. dorsalis clitoridis et a. profunda clitoridis)
§ Side branches:
§ Inferior rectal artery (a. rectalis inferior)
§ perineal artery (a. perinealis) gives off posterior scrotal artery (rr. scrotales posteriores) and posterior labial artery (rr. labiales posteriores)
§ Urethral branch (a. urethralis)
§ Artery of the bulb of the penis (a. bulbi penis)
§ Artery of the bulb of the vestibule (a. bulbi vestibuli)
- 4 arteries leaving the pelvic cavity
○ Umbilical artery (A. umbilicalis): Artery found during fetal life, a portion obliterates and becomes the medial umbilical fold (plica umbilicalis medialis).
§ What remains is the:
§ superior vesical artery (aa. vesicales superiores)
§ artery of the ductus deferens (a. ductus deferentis) give off branches fo the urethra (rr. Ureterici)
○ Inferior Vesical artery (Aa. vesicales inferiores)
○ Uterine Artery (A. uterina) runs upwards along the side of the uterus and divides into tubal branch (r. tubarius) which supplies tuba uterina and mesosalpinx and the ovarian branch (r. ovaricus) communicate with the ovarian artery of the abdominal aorta
○ Middle rectal artery (A. rectalis media)
- Blood supply of the rectum:
○ Superior rectal artery from the inferior mesenteric artery
○ Middle rectal artery from the Internal iliac artery
○ Inferior rectal artery from the internal pudendal artery