Muscle of the Cervical Region Flashcards
Platysma
Origin: Fascia of the chest
Insertion: mandible and mouth
Action: Depresses the mandible
Sternocleidomastoid
Origin: Sternum and Clavicle
Insertion:Temporal bone
Action:Flexes the head and neck
Anterior Scalene
Origin: Cervical Vertebrae 3-6
Insertion: First costa
Action: Elevates the ribs. Flexes and rotates the neck
Middle Scalene
Origin: Cervical Veryebrae 2-7
Insertion: First costa
Action: Elevates the ribs. Flexes and rotates the neck
Posterior Scalene
Origin: Cervical Vertebrae 4-6
Insertion: second costa
Action: Elevates the ribs. Flexes and rotates the neck
Digastric
Origin:Mandibular and Temporal bones
Insertion: Hyoid
Action: Elevates the hyoid, opens the mouth, and depressed the mandible
Stylohyoid
Origin: Temporal bone
Insertion: Hyoid
Action: Elevates and retracts the Hyoid
Mylohyoid
Origin: Mandible
Insertion:Hyoid
Action:Elevates the Hyoid and tongue
Sternohyoid
Origin: Sternum and clavicle
Insertion:Hyoid
Action: Depresses the larynx and hyoid
Sternothyroid
Origin: Sternum
Insertion: Thyroid cartilage
Action: Depresses the thyroid cartilage
Thyrohyoid
Origin:Thyroid cartilage
Insertion:Hyoid
Action:Elevates the Thyroid cartilage