Basic Back Muscles Origins And Insertions

Question 1

Name all 3 Trapezius Muscle Origins:

Answer 1

Occipital Bone.
Nuchal Ligament.
Spinous Process C7-T12.

Question 2

Name all 3 Trapezius Muscle Insertions:

Answer 2

Posterior Border of the Lateral third of the Clavicle.
Acromion Process.
Spine of Scapula.

Question 3

Name all Actions Performed By the Trapezius:

Answer 3

Rotation
Retraction
Elevation
Depression

Question 4

Name all 3 Deltoid Muscle Origins:

Answer 4

Anterior Boarder of the Lateral third of Clavicle.
Acromion Process.
Spine of Scapula.

Question 5

Name the Deltoid Muscle Insertion Point:

Answer 5

Deltoid Tuberosity of the Humerus.

Question 6

Name all Actions Performed by the Deltoid:

Answer 6

Shoulder Abduction.
Rotation.
Flexion.
Extension.

Question 7

Name all 5 Latissimus Dorsi Muscle Origins.

Answer 7

Spinous Process T7-T12. 
Thoracolumbar Fascia. 
Illiac Crest. 
Inferior 3 or 4 ribs. 
Inferior Scapula.

Question 8

Name the Insertion Point for the Latissimus Dorsi Muscle:

Answer 8

Floor of intertubercular grove within the humerus.

Question 9

Name all Actions Performed by the Latissimus Dorsi Muscle:

Answer 9

Adduction.
Extension.
Medial Rotation of the Arm.

Question 10

Name all 2 Teres Major Muscle Origin Points:

Answer 10

Inferior Angle of Scapula.

Question 11

Name the Teres Major Muscle Insertion Point:

Answer 11

Intertubercular Sulcus of the Humerus.

Question 12

Name all Actions Performed by the Teres Major:

Answer 12

Adduction.

Medically Rotates Arm.

Question 13

Name the Teres Minor Muscle Origin Point:

Answer 13

Lateral Border of Scapula.

Question 14

Name the Teres Minor Muscle Insertion Point:

Answer 14

Greater Tubercle of Humerus.

Question 15

Name all Actions Performed by the Teres Minor Muscle.

Answer 15

Lateral Rotation.
Adducts.
Stabilises Shoulder.

Question 16

Name the Rhomboid Major Muscle Origin Point:

Answer 16

Spinous Process of T2-T5.

Question 17

Name the Rhomboid Major Muscle Insertion Point:

Answer 17

Medial Border of Scapula.

Question 18

Name all Actions Performed by the Rhomboid Major Muscle:

Answer 18

Retraction.

Elevation of Scapula.

Question 19

Name the Rhomboid Minor Muscle Origin Point:

Answer 19

Nuchal ligaments and Spinous Process of C7-T1.

Question 20

Name the Rhomboid Minor Muscle Insertion Point:

Answer 20

Medial Border of Scapula.

Question 21

Name all Actions Performed by the Rhomboid Minor Muscle:

Answer 21

Retracts.

Elevation of Scapula.

Question 22

Name the Quadratus Lumborum Muscle Origin Point:

Answer 22

Iliac Crest and Iliolumbar Ligament.

Question 23

Name the Quadratus Lumborum Muscle Insertion Point:

Answer 23

Last Rib and Transverse of L1-L5

Question 24

What Action does the Quadratus Lumborum Muscle Perform?

Answer 24

Lateral Flexion

Question 25

Name the Serratus Posterior Inferior Muscle Origin Point:

Answer 25

Spinous Process of T11-L2.

Question 26

Name the Serratus Posterior Inferior Muscle Insertion Point:

Answer 26

Boarder of 9th-12th Ribs.

Question 27

Name the Actions Performed by the Serratus Posterior Inferior Muscle:

Answer 27

Depresses the lower Ribs.

Question 28

Name the Serratus Posterior Superior Muscle Origin Point:

Answer 28

• Nuchal Ligament

- Spinous Process of C7-T3

Question 29

Name the Serratus Posterior Superior Muscle Insertion Point:

Answer 29

Upper boarders of 2nd-5th Ribs.

Question 30

Name the Action Performed by the Serratus Posterior Superior Muscle:

Answer 30

Elevates the upper Ribs.

Question 31

External Intercostals Origin/Insertion/Action:

Answer 31

Inferior Boarder of Rib
Superior Boarder of Rib
Elevates Rib Cage

Question 32

Internal Intercostals Origin/Insertion/Action:

Answer 32

Lateral Edge of Rib
Superior Surface of Rib
Depresses Rib Cage

Question 33

Transverse Thoracic Origin/Insertion/Action:

Answer 33

Sternum
Costal Cartilages
Depresses Rib Cage

Question 34

Psoas Major Origin/Insertion/Action

Answer 34

TP T12-L5
Lesser Trochanter
Hip Flexion