VAN 221: Veterinary Splanchnology and Applied Anatomy (1+1)

HEAD REGION

• Superficial dissection of head (View image)
• Medium dissection of head (View image)
• Deep dissection of head (View image)
• The following structures can be appreciated in this region
• Masticatory muscles: Masseter, temporalis, digastricus, pterygoideus medialis and pterygoideus lateralis
• Facial muscles
  • Muscles of lips, nostrils and cheek : Zygomaticus, levator labii superioris proprius, depressor labii superioris proprius, dilator naris lateralis, levator nasolabialis, malaris, buccinator and depressor labii inferioris
  • Muscles of Eyelid : Orbicularis oculi, depressor palpebrae inferioris, frontalis, levator palpebrae superioris (with in the orbit)
  • Muscles of Ear : 6 groups of muscles,
    • Depressors,
    • Elevators,
    • Adductors,
    • Abductors,
    • Rotators and
    • Tensors
    • Appreciate pinna, its base and its apex. Annular cartilage, and scutiform cartilage
• Parotid salivary gland and parotid lymphnode, cornual nervem auriculopalpebral nerve, ventral buccal nerve, dorsal buccal nerve, Stenson’s duct, facial artery and vein, infraorbital nerve and vessels, mental nerve and vessels
• Upper and lower eyelids, 3^rd eyelid, cornea and sclera of eyeball and muzzle (bare area of upper lip between two nostrils which is clinically important and kept moist by secretions of nasolabial glands normally)
• Horn - cornual process of frontal bone, corium and shell. Observe cornual artery which is the branch of superficial temporal artery
• Mandibular salivary gland related to ramus of mandible and mandibular lymphnode at its lower part

Click here to note the "Deep cervical muscles, major joints, in situ viscera and udder of the cow - Left lateral view"