Unit 2 - Upper Limb: Latissimus Dorsi and Teres Major (Ex. II)

Question 1

scapular latissimus dorsi

Answer 1

O: I angle of scapula
I: floor of intertubercular sulcus of humerus
Inn: thoracodorsal N (C6-C8)
A: internal (M) rotation; adduction; extension; respiration (“coughing”)

Question 2

costal latissimus dorsi

Answer 2

O: ribs 9-12
I: floor of intertubercular sulcus of humerus
Inn: thoracodorsal N (C6-C8)
A: internal (M) rotation; adduction; extension; respiration (“coughing”)

Question 3

iliac latissimus dorsi

Answer 3

O: P 1/3 of iliac crest
I: floor of intertubercular sulcus of humerus
Inn: thoracodorsal N (C6-C8)
A: internal (M) rotation; adduction; extension; respiration (“coughing”)

Question 4

vertebral latissimus dorsi

Answer 4

O: spinous processes of T7-T12; thoracolumbar fascia
I: floor of intertubercular sulcus of humerus
Inn: thoracodorsal N (C6-C8)
A: internal (M) rotation; adduction; extension; respiration (“coughing”)

Question 5

teres major

Answer 5

O: I angle of scapula
I: crest of lesser tubercle of humerus (A angle)
Inn: lower subscapular N (C5-C7)
A: internal (M) rotation; adduction; extension