Podcast
Questions and Answers
Which muscles are responsible for moving the pectoral girdle? (Select all that apply)
Which muscles are responsible for moving the pectoral girdle? (Select all that apply)
- Levator Scapulae (correct)
- Serratus Anterior (correct)
- Biceps Brachii
- Rhomboid major (correct)
- Pectoralis Minor (correct)
- Rhomboid minor (correct)
- Trapezius (correct)
What is the origin of the Pectoralis Minor?
What is the origin of the Pectoralis Minor?
Sternal ends of upper ribs
What action does the Pectoralis Minor perform?
What action does the Pectoralis Minor perform?
Pulls scapula forward and downward, raises ribs
What is the insertion point of the Serratus Anterior?
What is the insertion point of the Serratus Anterior?
What is the action of the Serratus Anterior?
What is the action of the Serratus Anterior?
What is the origin of the Trapezius?
What is the origin of the Trapezius?
What actions does the Trapezius perform?
What actions does the Trapezius perform?
Where does the Levator Scapulae insert?
Where does the Levator Scapulae insert?
What is the action of the Levator Scapulae?
What is the action of the Levator Scapulae?
What is the origin of Rhomboid major?
What is the origin of Rhomboid major?
What action does Rhomboid major perform?
What action does Rhomboid major perform?
What is the origin of Rhomboid minor?
What is the origin of Rhomboid minor?
What actions does Rhomboid minor perform?
What actions does Rhomboid minor perform?
Flashcards
Pectoralis Minor Origin
Pectoralis Minor Origin
Sternal ends of upper ribs
Pectoralis Minor Action
Pectoralis Minor Action
Pulls scapula forward and downward, raises ribs
Serratus Anterior Insertion
Serratus Anterior Insertion
Ventral surface of scapula
Serratus Anterior Action
Serratus Anterior Action
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Trapezius Origin
Trapezius Origin
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Trapezius Actions
Trapezius Actions
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Levator Scapulae Insertion
Levator Scapulae Insertion
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Levator Scapulae Action
Levator Scapulae Action
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Rhomboid Major Origin
Rhomboid Major Origin
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Rhomboid Major Action
Rhomboid Major Action
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Rhomboid Minor Origin
Rhomboid Minor Origin
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Rhomboid Minor Action
Rhomboid Minor Action
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Muscles moving pectoral girdle
Muscles moving pectoral girdle
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Study Notes
Muscles that Move the Pectoral Girdle
- Includes key muscles: Pectoralis Minor, Serratus Anterior, Trapezius, Levator Scapulae, and Rhomboid major and minor.
Pectoralis Minor
- Originates from the sternal ends of the upper ribs.
- Inserts at the coracoid process of the scapula.
- Functions to pull the scapula forward and downward while also raising the ribs.
Serratus Anterior
- Originates from the outer surface of upper ribs located on the side of the chest.
- Inserts on the ventral surface of the scapula.
- Responsible for pulling the scapula down and forward, aiding in thrusting the shoulders forward.
Trapezius
- Originates from the occipital bone and spines of cervical and thoracic vertebrae.
- Inserts at the clavicle, spine, and acromion process of the scapula.
- Allows for the rotation, elevation, and depression of the scapula.
Levator Scapulae
- Originates from the transverse processes of cervical vertebrae C1-C4.
- Inserts along the medial margin of the scapula.
- Primarily elevates the scapula.
Rhomboid Major
- Originates from the spines of superior thoracic vertebrae.
- Inserts on the medial border of the scapula.
- Functions to retract the scapulae.
Rhomboid Minor
- Originates from the spines of the C7 vertebra.
- Inserts on the medial border of the scapula.
- Works to retract and elevate the scapulae.
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