Podcast
Questions and Answers
Which muscle attaches the scapula with the humerus?
Which muscle attaches the scapula with the humerus?
- Pectoralis major
- Subscapularis
- Deltoid (correct)
- Trapezius
Which part of the scapula does the deltoid muscle originate from?
Which part of the scapula does the deltoid muscle originate from?
- Acromion
- Clavicle
- Spine of scapula (correct)
- Deltoid tuberosity in humerus
What is the action of the anterior fibers of the deltoid muscle?
What is the action of the anterior fibers of the deltoid muscle?
- Adduction
- Flexion
- Medial rotation
- Abduction (correct)
What is the action of the subscapularis muscle?
What is the action of the subscapularis muscle?
What is the nerve supply to the deltoid muscle?
What is the nerve supply to the deltoid muscle?
Flashcards
Deltoid Muscle
Deltoid Muscle
Connects the scapula to the humerus.
Deltoid Origin
Deltoid Origin
Spine of the scapula.
Anterior Deltoid Action
Anterior Deltoid Action
Abduction of the arm.
Subscapularis Action
Subscapularis Action
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Deltoid Nerve Supply
Deltoid Nerve Supply
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Study Notes
Muscles of the Scapula and Humerus
- The muscle that attaches the scapula with the humerus is the deltoid muscle.
Deltoid Muscle
- The deltoid muscle originates from the anterior surface of the acromion process and the lateral border of the scapula spine.
- The anterior fibers of the deltoid muscle are responsible for flexion and medial rotation of the humerus.
- The deltoid muscle receives its nerve supply from the axillary nerve (C5-C6).
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