Muscles Of The Trunk Anterior Flashcards
What is the action of the Platysma?
Wrinkles skin of the neck
What muscle wrinkles the skin of the neck?
Platysma
Where is the Platysma found?
Front of neck
What is the action of the Trapezius?
Rotates inferior angle of scapula laterally, raises shoulder, draws scapula backwards
What muscle rotates the scapula laterally, raises shoulder, and draws scapula backwards?
Trapezius
Where might you find the Trapezius?
Upper back, kite-shaped muscle.
What is the action of the Deltoid?
Draws arm forward, middle abducts, draws arm backwards
Where might you find the Deltoid?
Shoulder
What muscle draws arm forward, backwards, and abducts?
Deltoid
What is the action of the External Obliques?
Flexes vertebral column, rotates body at the waist
What muscle flexes the vertebral column and rotates the body at the waist?
External Obliques
Where might you find the External Obliques?
Waist
Where might you find the Internal Obliques?
Waist, deep to external oblique
What is the action of the Internal Obliques?
Rotates waist and flexes vertebral column
What muscle produces rotation at the wrist and flexes vertebral column?
Internal Oblique
What is the action of the Sternocleidomastoid?
Flexes head and turns it side to side
Where might you find the Sternocleidomastoid?
Side of neck, rope-like muscle
What muscle flexes the head and turns it side to side?
Sternocleidomastoid
What is the action of the Pectoralis Major?
Draws arm forwards and medially; adducts and rotates inwards
What muscle draws arm forwards and medially; adducts and rotates inwards?
Pectoralis Major
Where might you find the Pectoralis Major?
Chest
Where might you find the Serratus Anterior?
Side of thorax
What muscle draws shoulder forward and rotates scapula?
Serratus Anterior
What is the action of the Serratus Anterior?
Draws shoulder forwards, rotates scapula
What is the action of the Rectus Abdominis?
Supports viscera (large internal organs), flexes vertebral column
What muscle supports viscera and flexes the vertebral column?
Rectus Abdominis
Where might you find the Rectus Abdominis?
Abdominal wall
Where might you find the Transverse Abdominis?
Underneath internal and external obliques deepest muscle of the abdomen
What is the action of the Transverse Abdominis?
Supports viscera and flexes vertebral column
What muscle supports viscera and flexes vertebral column?
Transverse Abdominis
What is the action of the Ilio-Psoas?
Rotates femur laterally and flexes hip
What muscle rotates femur laterally and flexes the hip?
Ilio-Psoas
Where is the Ilio-Psoas found?
Deep muscle of pelvic floor which crosses hip joint
