Easy Med Notes

TRIANGLES OF NECK There are 2 triangles of neck 1. Anterior triangle 2. Posterior triangle ANTERIOR TRIANGLE OF THE NECK The anterior triangle is present at the front of the neck. On either side of the neck. BOUNDARIES Superior border: It is bounded by inferior border of mandible. Medial border: It is bounded by the imaginary midline of neck . Lateral border: It is bounded by anterior border of the sternocleidomastoid muscle. CONTENTS The contents of anterior triangle are muscles, nerves, arteries, veins and lymph nodes. Muscles : suprahyoid muscle- Superior,  Infrahyoid muscle - Inferior Arteries : Common carotid artery Vein : Internal jugular vein Nerves:  Facial nerve, Glossopharyngeal nerve, Vagus nerve, Accessory nerve, Hypoglossal nerve. SUBDIVISIONS The triangle is subdivide by hyoid bone, suprahyoid and infrahyoid muscles into four triangle. CAROTID TRIANGLE BORDER:  The borders of the carotid triangle are: Superior border :  The superior ...

Sciatic foramina - ANATOMY The sciatic foramen is a opening in the pelvis in the posterior aspect of the pelvis. There are 2 openings :  -Greater sciatic foramen -Lesser sciatic foramen The greater sciatic foramen is separated by lesser sciatic foramen by a ligament called sacrospinous ligament . Greater sciatic foramen Contents Due to the presence of piriformis muscle the greater sciatic foramen is divided into 2 parts. They are :                    - Suprapiriform foramen                   -Infrapiriform foramina Contents of Suprapiriform foramina Superior gluteal artery ,  Superior gluteal vein ,  Superior gluteal nerve Contents of Infrapiriform foramen Sciatic nerve Inferior gluteal nerve Pudendal nerve Posterior femoral cutaneous nerve And nerves which supply obturator interus, quadratus femoris . Borders Superior : Anterior sacroiliac ligaments Inferior : Sacrospinous...