Torso

Question 1

Rectus Abdominis (right up fibers)

Answer 1

Origin- Pubis, pubic symphysis
Insertion- Rib cartilage, xiphoid process
Action- Moves abdominal wall

Question 2

External Oblique (v shape fibers)

Answer 2

Origin- Ribs
Insertion- Iliac crest, Linea alba
Action- Moves abdominal wall

Question 3

Internal Oblique (upside down v shape fibers)

Answer 3

Origin- Iliac crest, thoracolumbar fascia
Insertion- Rib cartilage, linea alba
Action- Moves abdominal wall

Question 4

Transverse Abdominis (across fibers)

Answer 4

Origin- Iliac crest, lumbar fascia, rib cartilage
Insertion- Xiphoid process, linea alba, pubis
Action- Moves abdominal wall

Question 5

Trapezius

Answer 5

Origin- Occipital bone, cervical and thoracic vertebrae
Insertion- Clavicle, acromion and spine of scapula
Action- Moves pectoral girdle