Origins + Insertions

Question 1

Ilicostalis

Answer 1

A: Extend the back, laterally flex the back, and maintain correct posture and curvature of the spinal column

O: Spinous processes and Supraspinous ligaments T11-L5.

I: Lower 6 rips (lumbar) to upper 6 ribs (thoracic) upper 6 to transverse processes C4-7 (cervical region)

Question 2

Longissimus

Answer 2

A: Extend the back, laterally flex the back, and maintain correct posture and curvature of the spinal column

O: Spinous processes and Supraspinous ligaments T11-L5.

I: Transverse process of thoracic vertebra. adjacent ribs.
Transverse process T1-6. C2-6 (cervical region).
Transverse processes T1-5 and C4-7 to mastoid process.

Question 3

Spinalis

Answer 3

A: Extend the back, laterally flex the back, and maintain correct posture and curvature of the spinal column

O: Spinous processes and Supraspinous ligaments T11-L5.

I: Spinous process T11-L2 and T1-6

Question 4

Transversus Abdominis

Answer 4

A: Stabilise trunk, pelvic and ribs.

O: inner 2/3 iliac crest, lower 6 ribs and inguinal ligament.

I: Via aponeurosis attaching to Linea alba and into inguinal Ligament.

Question 5

Rectus Abdominus

Answer 5

A: Flection of lumbar spine and lateral flexion.

O: Pubic crest and pubic synthesis

I: Ribs 5-7 and Xiphoid process.

Question 6

Trapezius - Upper

Answer 6

A: Scapula and Clavicle elevation.

O: C1-C7, ocipital protuberance and ligamentum Nuchae.

I: Lateral 3rd of clavicle and posterior border.

Question 7

Trapezius - Middle

Answer 7

A: Scapula Elevation and retraction and lateral rotation.

O: C7-T3

I: Acromion and upper border of spine of scapula.

Question 8

Trapezius - Lower

Answer 8

A: Scaupla depression and lateral rotation.

O: T4-12

I: Medial spine of scapula.

Question 9

Rhombiods

Answer 9

A: Retraction and medial rotation.

O: C7-T1 and T2-5

I: Medial bored below spine.

Question 10

Pectoralis Major

Answer 10

A: Horizontal adduction, Internal rotation.

O: Medial 2/3 clavicle, sternum and upper 6 costal cartilages.

I: Lateral lip of bicipital grove.

Question 11

Latissimus Dorsi

Answer 11

A: Adducts, extends and internally rotates the arm.

O: Posterior Iliac Crest, Sacrum, Lumbar fasciae, lower ribs and T7-T12.

I: Medial lip of bicipital grove of Humerus.

Question 12

Deltoid - Anterior

Answer 12

A: Abducts and internal rotation of shoulder.

O: Latteral 3rd of clavicle

I: Lateral Surface of Deltoid tuberosity.

Question 13

Deltoid - Medial

Answer 13

A: Abducts shoulder

O: Lateral border of Acromion process and lateral clavicle.

I: Lateral surface of Deltoid tuberosity.

Question 14

Deltoid - Posterior

Answer 14

A: Shoulder abduction and external rotation.

O: Inferior border of scapula spine.

I: Lateral surface of Deltoid tuberosity.

Question 15

Bicep Brachii

Answer 15

A: Flexion/supernates elbow and flexes shoulder.

O: LH - Supraglenoid tubercle.
SH - Caracoid process.

I: Radial tuberosity and bicipital aponeurosis.