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Anterior Torso

Muscles of the Anterior Torso

QuestionAnswer
What is the Origin of the Scalenes Trans processes of C3-C7
What is the Origin of the Sternocleidomastoid Superior aspect of the manubrium & medial third of clavicle
What is the Origin of the Pectoralis Major Medial half of clavicle, sternum and costal cartilage of ribs 1-6
What is the Origin of the Pectoralis Minor Ribs 3,4 & 5
What is the Origin of the Subclavius First rib
What is the Origin of the Serratus Anterior Anterior surfaces of the first upper 8 or 9 ribs
What is the Origin of the Rectus Abdominus Pubic crest and the Pubic Symphysis
What is the Origin of the Internal Obliques Lateral inguinal ligament, Iliac crest and the thoracolumbar fascia
What is the Origin of the External Obliques The lower 8 Ribs
What is the Origin of the Transverse Abdominals Lateral Inguinal Ligament, Iliac crest, Thoracolumbar fascia and internal surface of the lower 6 ribs
What is the Origin of the Diaphragm Inner surface of the lower 6 ribs, upper 2 or 3 lumbar vertebrae, inner part of xiphoid process
What is the Insertion of the Scalenes First and second ribs
What is the Insertion of the Sternocleidomastoid Mastoid process
What is the Insertion of the Pectoralis Major Crest of greater tubercle of humerus
What is the Insertion of the Pectoralis Minor Coracoid Process of Scapula
What is the Insertion of the Subclavius Inferior lateral aspect of clavicle
What is the Insertion of the Serratus Anterior Anterior surface of medial border of scapula
What is the Insertion of the Rectus Abdominus The Costal Cartilage of ribs 5,6 & 7 and xiphoid process
What is the Insertion of the Internal Obliques Internal surface of lower 3 ribs, abdominal aponeurosis to linea alba
What is the Insertion of the External Obliques Anterior part of iliac crest, abdominal aponeurosis to linea alba
What is the Insertion of the Transverse Abdominals Abdominal aponeurosis to linea alba.
What is the Insertion of the Diaphragm Central tendon
What are the actions of the Scalenes *Lat flex head and neck to same side *Rotate head and neck to opposite side (weak) *Elevate ribs during inhalation *Flex head and neck (ant. only)
What are the actions of the Sternocleidomastoid *Lat flex head and neck to same side *Rotate head & neck to opposite side *Bilaterally flex neck
What are the actions of the Pectoralis Major ALL – adduct & medially rotate the humerus UPPER – flex and horizontally adduct the humerus LOWER – extend the humerus
What are the actions of the Pectoralis Minor *Depress and abduct scapula. *Tilt scapula anteriorly *raises ribs during inspiration
What are the actions of the Subclavius *Draw clavicle inferiorly and anteriorly. *Elevate first rib (to assist inhalation) *Stabilize sternoclavicular joint
What are the actions of the Serratus Anterior FIXED ORIGIN=abduct and depress scapula & hold medial border of scapula against rib cage FIXED SCAPULA=may act in forced inhalation
What are the actions of the Rectus Abdominus Flex vertebral column (lumbar spine)
What are the actions of the Internal Obliques UNILATERAL=laterally flex vertebral column to same side. Rotate spine to same side BILATERAL=Flex spine and compress abdominal contents
What are the actions of the External Obliques UNILATERAL=Lat flex spine to same side. Rotate spine to opposite side. BILATERAL=flex spine
What are the actions of the Transverse Abdominals Compress abdominal contents & stabilise trunk
What are the actions of the Diaphragm Draw down the central tendon of diaphragm. Increase volume of thoracic cavity during inhalation
What muscle originates from the Trans processes of C3-C7 Scalenes
What muscle originates from the Superior aspect of the manubrium & medial third of clavicle Sternocleidomastoid
What muscle originates from the Medial half of clavicle, sternum and costal cartilage of ribs 1-6 Pectoralis Major
What muscle originates from the Ribs 3,4 & 5 Pectoralis Minor
What muscle originates from the First rib Subclavius
What muscle originates from the Anterior surfaces of the first upper 8 or 9 ribs Serratus Anterior
What muscle originates from the Pubic crest and the Pubic Symphysis Rectus Abdominis
What muscle originates from the Lateral inguinal ligament, Iliac crest and the thoracolumbar fascia Internal Obliques
What muscle originates from the The lower 8 Ribs External Obliques
What muscle originates from the Lateral Inguinal Ligament, Iliac crest, Thoracolumbar fascia and internal surface of the lower 6 ribs Transverse Abdominals
What muscle originates from the Inner surface of the lower 6 ribs, upper 2 or 3 lumbar vertebrae, inner part of xiphoid process Diaphragm
What muscle Inserts into the First and second ribs Scalenes
What muscle Inserts into the Mastoid process Sternocleidomastoid
What muscle Inserts into the Crest of greater tubercle of humerus Pectoralis Major
What muscle Inserts into the Coracoid Process of Scapula Pectoralis Minor
What muscle Inserts into the Inferior lateral aspect of clavicle Subclavius
What muscle Inserts into the Anterior surface of medial border of scapula Serratus Anterior
What muscle Inserts into the Costal Cartilage of ribs 5,6 & 7 and xiphoid process Rectus Abdominis
What muscle Inserts into the Internal surface of lower 3 ribs, abdominal aponeurosis to linea alba Internal Obliques
What muscle Inserts into the Anterior part of iliac crest, abdominal aponeurosis to linea alba External Obliques
What muscle Inserts into the Abdominal aponeurosis to linea alba. Transverse Abdominals
What muscle Inserts into the Central tendon Diaphragm
What muscles Actions are to: *Lat flex head and neck to same side *Rotate head and neck to opposite side (weak) *Elevate ribs during inhalation *Flex head and neck (ant. only) Scalenes
What muscles Actions are to: *Lat flex head and neck to same side *Rotate head & neck to opposite side *Bilaterally flex neck Sternocleidomastoid
What muscles Actions are to: ALL – adduct & medially rotate the humerus UPPER – flex and horizontally adduct the humerus LOWER – extend the humerus Pectoralis Major
What muscles Actions are to: *Depress and abduct scapula. *Tilt scapula anteriorly *raises ribs during inspiration Pectoralis Minor
What muscles Actions are to: *Draw clavicle inferiorly and anteriorly. *Elevate first rib (to assist inhalation) *Stabilize sternoclavicular joint Subclavius
What muscles Actions are to: FIXED ORIGIN=abduct and depress scapula & hold medial border of scapula against rib cage FIXED SCAPULA=may act in forced inhalation Serratus Anterior
What muscles Actions are to: Flex vertebral column (lumbar spine) Rectus Abdominis
What muscles Actions are to: UNILATERAL=laterally flex vertebral column to same side. Rotate spine to same side BILATERAL=Flex spine and compress abdominal contents Internal Obliques
What muscles Actions are to: UNILATERAL=Lat flex spine to same side. Rotate spine to opposite side. BILATERAL=flex spine External Obliques
What muscles Actions are to: Compress abdominal contents & stabilise trunk Transverse Abdominals
What muscles Actions are to: Draw down the central tendon of diaphragm. Increase volume of thoracic cavity during inhalation Diaphragm
Created by: Arran105