Exam 1 Flashcards
Trapezius
-Spinotrapezius
-Acromiotrapezious
-Clavotrapezius
Origin: Occipital bone, cervical and thoracic vertebrae
Insertion: Scapula, clavicle
Action: Adduct, elevates, and raises scapula, raises clavicle
Deltoid
-Spinodeltoid
-Acromiodeltoid
-Clavodeltoid
Origin: Clavicle, scapula
Insertion: Humerus
Action: Abduct arm
Levator scapulae (ventralis)
Origin: Cervical vertebrae
Insertion: Scapula
Action: Raises scapula
Latissimus dorsi
Origin: Sacrum, ilium, lumbar and thoracic vertebrae, ribs
Insertion: Humerus
Action: Extends, adducts, rotates arm medially; pulls shoulder down and back
Rhomboideus major
Origin: Thoracic vertebrae
Insertion: Scapula
Action: Elevates, adducts scapula and rotates it downwards; stabilizes scapula
Rhomboideus minor
Origin: Cervical and thoracic vertebrae
Insertion: Scapula
Action: Elevates, adducts scapula and rotates it downward; stabilizes scapula
Rhomboideus capitus (cat)
Infraspinatus
Origin: Scapula
Insertion: Humerus
Action: Laterally rotates and adducts arm
Supraspinatus
Origin: Scapula
Insertion: Humerus
Action: Abducts arm
Terres Major
Origin: Scapula
Insertion: Humerus
Action: Extends, adducts, rotates humerus
Splenius (capitis)
Origin: Cervical and thoracic vertebrae
Insertion: Temporal and occipital bone
Action: Extends and rotates head
Serratus ventralis (anterior)
Origin: Ribs
Insertion: Scapula
Action: Abducts scapula and rotates it upward
Serratus dorsalis (posterior)
Origin: Vertebrae
Insertion: Ribs
Action: Elevates ribs
Spinalis (thoracis)
Origin: Thoracic and lumbar vertebrae
Insertion: Thoracic vertebrae
Action: Extends vertebral column
Longissimus thoracis
Origin: Sacrum
Insertion: Thoracic vertebrae and ribs
Action: Extends and bends vertebral column