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Muscles for Facial Expressions01:14

Muscles for Facial Expressions

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The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles, primarily responsible for the vast array of human facial expressions, originate from the bones or fibrous structures of the skull and extend outwards to connect with the skin. While most skeletal muscles in the body are enveloped in thick fascia, facial muscles generally have a more delicate fascial covering, with the buccinator muscle being a...
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Muscles of the Anterior Neck01:26

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The anterior neck muscles are the group of muscles covering the front part of the neck. These muscles are classified into three subgroups. The first one is the superficial muscles, the most visible muscles in the front of the neck. It includes the platysma and sternocleidomastoid. The second group is the suprahyoid muscles, located above the hyoid bone. This group comprises the digastric, mylohyoid, geniohyoid, and stylohyoid. Lastly, the infrahyoid muscles are found below the hyoid bone and...
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Airway management is a key skill in emergency and critical care settings, as maintaining a clear airway is essential for adequate oxygenation and ventilation.Head Tilt-Chin Lift TechniqueThe head tilt-chin lift maneuver is an essential technique primarily used in patients without suspected cervical spine injuries. To perform this maneuver, one hand is placed on the patient’s forehead, and gentle pressure is applied backward to tilt the head. The fingertips of the other hand are positioned...
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Muscles that Move the Head01:19

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The muscles that move the head are a dynamic and complex group of structures that work together to facilitate a wide range of head movements, including rotation, flexion, extension, and lateral bending.
The bilateral sternocleidomastoid, or SCM, and the suprahyoid and infrahyoid muscles are significant head flexors. The SCM muscles originate at the sternum and clavicle and attach to the mastoid process of the temporal bone. The SCM contracts bilaterally to bend the head forward, whereas...
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Relaxation of Skeletal Muscles01:29

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The period of muscle contraction primarily influences the duration of stimulation at the neuromuscular junction (NMJ), the presence of free calcium ions in the sarcoplasm, and the availability of energy or ATP to support contractions.
When an action potential reaches the axon terminal, it depolarizes the membrane and opens voltage-gated sodium channels. Sodium ions enter the cell, further depolarizing the presynaptic membrane. This depolarization causes voltage-gated calcium channels to open....
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Veins of Head and Neck01:19

Veins of Head and Neck

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The blood drainage from the head and neck is primarily managed by three pairs of veins: the external jugular, internal jugular, and vertebral veins. The external jugular veins drain superficial scalp and face structures, passing over the sternocleidomastoid muscles to empty into the subclavian veins.
On the other hand, the vertebral veins, unlike their arterial counterparts, are not primarily responsible for brain drainage. Instead, they drain the cervical vertebrae, spinal cord, and some small...
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Video Experimental Relacionado

Updated: Sep 9, 2025

Single-stage Dynamic Reanimation of the Smile in Irreversible Facial Paralysis by Free Functional Muscle Transfer
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Técnica de plano profundo para levantamiento de cara y cuello masculino

Daryoush Saadat1, Jonathan Sykes2

  • 1Otolaryngology - Facial Plastic and Reconstructive Surgery, University of Southern California Keck School of Medicine, Beverly Hills, United States.

Facial plastic surgery : FPS
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PubMed
Resumen

Este estudio detalla una técnica especializada de estiramiento facial de plano profundo para hombres, que aborda la anatomía facial masculina única. El enfoque asegura resultados naturales y restauradores al adaptar los métodos quirúrgicos a las estructuras específicas del hombre.

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Área de la Ciencia:

  • Cirugía plástica
  • Cirugía de rejuvenecimiento facial

Sus antecedentes:

  • Los pacientes varones tienen demandas anatómicas y estéticas únicas para el rejuvenecimiento facial.
  • Las técnicas de estiramiento facial existentes a menudo se optimizan para la anatomía femenina, lo que requiere una adaptación para los hombres.

Objetivo del estudio:

  • Para presentar una técnica de estiramiento facial anatómicamente precisa y específica para hombres.
  • Para abordar las consideraciones estructurales, vasculares y estéticas únicas en el rejuvenecimiento facial masculino.

Principales métodos:

  • Hace hincapié en la disección de plano profundo extendido y la liberación ligamentosa.
  • Incorpora el reposicionamiento SMAS con una mínima disección subcutánea y acceso submental dirigido.
  • Incluye procedimientos de cuello plano profundo, como la reducción de grasa subplatismal y el contorno de la glándula digástrica / submandibular.

Principales resultados:

  • La técnica específica para hombres respeta y preserva la definición facial masculina.
  • Alcanza el ángulo cervicomental óptimo mediante el manejo específico de las estructuras submentales.
  • Ofrece resultados consistentes, naturales y estructuralmente reparadores.

Conclusiones:

  • La adaptación específica de género de la cirugía de estiramiento facial de plano profundo es crucial para los pacientes masculinos.
  • Las técnicas basadas en la preservación adaptadas a la anatomía masculina proporcionan resultados estéticos superiores.
  • Este enfoque ofrece un método fiable para el rejuvenecimiento facial masculino.