insertion trunk

Question 1

External Oblique

Answer 1

Flexes and Compresses the Abdomen

Origin - Lower 8 Ribs

Insertion - Linea Alba, Pubic Crest, Iliac Crest

Question 2

External Intercostals

Answer 2

Elevate Rib Cage

Origin - Inferior Border of Rib Above

Insertion - Superior Border of Rib Below

Question 3

Pectoralis Major

Answer 3

Flexes and Adducts Arm

Origin - Sternal End of the Clavicle

Insertion - Intertubecular Groove of the Humerus

Question 4

Rectus Abdominis

Answer 4

Flexes and Rotates Abdomen

Origin - Pubic Crest and Pubic Symphysis

Insertion - Xiphoid process and Costal Cartiladges of ribs 5-7