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popliteal vein formed by union of the venue commitantes of anterior and posterior tibial artery receive from small saphenous vein and drain in to femoral vein
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superficial inguinal LN ( below inguinal ligament)
Horizontal; drain below the umbilicus, the perineum, the external genitalia , lower anal canal
Vertical : superficial lymph from lower limb except lateral calf , lateral foot -
deep inguinal LN
Three in number
Collect from deep vessels and superficial inguinal LN -
politeal LN
From latera side and back of leg and lateral foot and drain in to DILN -
superior and middle conchae formed from ethmoid bone
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weakest part in lateral wall of skull is pterion where parietal bone meet with greater wing of sphenoid bone
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contents
Superior orbital fissure :
Lacrimal , frontal , trochlear, occulomotor, nasocillary , abducent nerves , superior ophthalmic vein
Foramen Rotundum: V2 of 5th nerve
Foramen ovale; V3 of 5th nerve , lesser petrosal nerve
Foramen spinosum : middle meningial Artey
Foramen lacerum: internal carotid Artey
Jagular foramen : 9, 10 , 11and sigmoid sinus -
mental foramen in mandible transmit
Inferior alveolar nerve -
mouth closed
Temporalis, medial pterygoid, masseter
Mouth open
Diagestric, genio and mylohyoid muscles
Protrusion
By lateral pterygoid muscle -
platysmus muscles supplied by facial nerve