Muscle Quiz 7 Flashcards
MQ7: What is the origin and insertion of the Rhomboid muscle?
Origin: C6-T5 Spinous Process
Insertion: Vertebral Border of Scapula
MQ7: What is the function of the Rhomboid muscle?
Elevate Scapula
Endorotate Scapula
Adduct (Pull Medial) Scapula
MQ7: What is the origin and insertion of the Deltoid?
Origin: Lateral Clavicle Bone, Acromion Process of Scapula, and Spine of Scapula
Insertion: Deltoid Tuberosity of Humerus
MQ7: What are the functions of the Deltoid muscle?
Anterior: Flex, Horizontal Adduct, & Medial Rotate
Middle: Abduct
Posterior: Extend, Horizontal Abduct, & Lateral Rotate
MQ7: What is the origin and insertion of the Supraspinatus?
Origin: Supraspinatus Fossa of the Scapula
Insertion: Greater Tubercle of the Humerus
MQ7: What is the function(s) of the Supraspinatus muscle?
Abduct Arm (1st 15-30 Degrees)
MQ7: What is the origin and insertion of the Infraspinatus muscle?
Origin: Spinal Border of the Scapula and Infraspinatus Fossa
Insertion: Greater Tubercle of Humerus
MQ7: What is the function of the Infraspinatus muscle?
Laterally Rotate Arm
MQ7: What is the origin and insertion of the Teres Minor?
Origin: Axillary Border of Scapula
Insertion: Greater Tubercle of Humerus
MQ7: What is the function of the Teres Minor muscle?
Laterally Rotate and Adduct Arm
MQ7: What is the origin and insertion of the Subscapularis muscle?
Origin: Subscapular Fossa
Insertion: Lesser Tubercle of Humerus
MQ7: What is the function of the Subscapularis muscle?
Medially Rotate Arm
MQ7: What muscle makes a “Christmas Tree” shape?
Rhomboid
MQ7: What are the muscles of the Rotator Cuff?
Supraspinatus, Infraspinatus, Teres Minor, and Subscapularis
MQ7: What muscle functions to initiate abduction?
Supraspinatus