Lecture On Comprehensive Facial Anatomy: Muscles, Nerves, Vessels & Clinical Insights | MBBS

Key Anatomical Systems and Topics Covered:

Facial Skin and Fascia [02:01]: An exploration of the unique characteristics of facial skin, including its vascularity, gland concentration, and elasticity. Learn about the superficial fascia [04:02] housing facial muscles, and the largely absent deep fascia [04:19] with specific exceptions.
Muscles of Facial Expression [05:04]: A detailed overview of the numerous muscles responsible for our expressions, categorized by their location (around the orbit [06:12], nose [07:54], and mouth [11:06]) and function. Clinical relevance in paralysis and injury is also discussed [07:09].
Vascular Supply of the Face:
Arterial Supply [17:03]: Primary sources from the facial artery and superficial temporal artery branches, crucial for surgical and trauma considerations.
Venous Drainage [20:46]: Corresponding veins like the facial and superficial temporal veins, and their drainage pathways.
The "Dangerous Area of the Face" [24:49]: Understanding this critical region around the upper lip and nose and the risk of infection spreading to the cavernous sinus.
Nerve Supply of the Face:
Sensory Innervation [34:11]: Dominated by the trigeminal nerve (CN V) and its ophthalmic, maxillary, and mandibular divisions, with specific regional coverage detailed [39:16].
Motor Innervation [34:47]: The facial nerve (CN VII) supplying muscles of facial expression, and the trigeminal nerve's mandibular division for muscles of mastication. The course and branches of the facial nerve are illustrated [35:04].
Lymphatic Drainage [29:21]: Organization into key lymph node groups – parotid [33:54], submandibular [33:54], and submental [34:06] – and their ultimate drainage into the deep jugular chain.
Clinical Considerations and Relevance: Throughout the lecture, emphasis is placed on the practical application of facial anatomy knowledge. This includes managing facial injuries like burns and lacerations [08:14, 09:50], preventing contractures [13:33], understanding the implications of the "dangerous area of the face" [25:00], diagnosing salivary gland issues [30:46], and addressing facial nerve paralysis.
SANTINIKETAN MEDICAL COLLEGE & HOSPITAL
Real Classroom Demonstration/Lecture
On: ANATOMY by Prof. (Dr.) Provas Banerjee
(MBBS Batch: 2024-25)
Conducted on: 28-05-25

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