Chitra Ramasamy

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  NERVES OF UPPER LIMB – MEDIAN, ULNAR, RADIAL NERVES                               MEDIAN NERVE:   Root value: C5, C6, C7, C8, T1 It is formed in the axilla by the union of two roots – medial and lateral Formation in the axilla: Medial root is form medial cord of brachial plexus ( C8,T1) and lateral root is from lateral cord of brachial plexus ( C5,C6,C7) The medial root crosses the third part of axillary artery and joins with lateral root to form median nerve which is now lateral to the 3 rd part of axillary artery. v Course: In the front of arm In the cubital fossa In the front of forearm In the palm of hand In the front of arm: It runs lateral to third part of axillary artery and proximal part of brachial artery. In the middle of the arm, opposite the insertion of coracobrachialis, the median nerve crosses from lateral to...
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FRONT OF THIGH

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  CHAPTER – 1 FRONT OF THIGH                 For introduction to lower limb, watch this video: https://youtu.be/n75zDKXo-vk   Thigh has three compartments: 1.      Front of thigh 2.      Medial side of thigh 3.      Back of thigh FRONT OF THIGH Skin Cutaneous nerves from lumbar plexus – ventral rami of the first three lumbar nerves. Superficial fascia: contains inguinal lymph nodes, great saphenous vein and its tributaries (terminal) Inguinal lymph nodes (Superficial) ·        Upper horizontal group – drains lymph from the gluteal region, lower part of anterior abdominal wall, perineum, lower part of the anal canal below the pectinate line. ·        Lower vertical group – drains most of superficial lymphatics from the lower limb. De...
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ARCHES OF FOOT

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  CHAPTER 12 ARCHES OF THE FOOT For the entire video of arches of the foot, watch this video: https://youtu.be/HaMCaX3fK6g Arches of foot helps in a)      Proportional distribution of body weight to the ground. b)     Acts as segmented lever to help in propulsive mechanism. Arches of foot are a)      Longitudinal arch b)     Transverse arch Longitudinal arch – it is subdivided into medial and lateral arches   Medial longitudinal arch: Bones forming the arch are : calcaneus, talus, navicular, three cuneiform and medial three meta tarsal bones up to their heads. Summit of the arch – trochlear upper surface of talus Posterior pillar – medial tubercle of calcaneus Anterior pillar – heads of the medial three meta tarsal bones. Most vulnerable part of the medial arch – head of talus – received in front by the concave surf...
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