Practical 1 origins and insertions

Question 1

Latissmus Dorsi

Answer 1

Origin: Lower thoracic spinous processes, iliac crest

Insert: Intertubercular groove FLOOR

Question 2

Rhomboid Minor

Answer 2

Origin: C7-T1 spinous processes

Insert: Medial border of scapula AT spine

Question 2

Trapezius

Answer 2

Origin: cervical and thoracic spinous processes and nuchal ligament

Insert: bony horseshoe of scapula (acromion, spine of scapula, lateral 1/3 of clavicle)

Question 3

Levator Scapulae

Answer 3

Origin: C1-C4 transverse processes

Insert: Medial border of scapula ABOVE spine

Question 3

Rhomboid Major

Answer 3

Origin: T2-T5 spinous processes

Insert: Medial border of scapula BELOW spine

Question 3

Supraspinatus

Answer 3

Origin: Supraspinous fossa

Insert: Superior facet of greater tubercle

Question 4

Infraspinatus

Answer 4

Origin: Infraspinous fossa

Insert: Middle facet of greater tubercle

Question 4

Teres Minor

Answer 4

Origin: Lateral border of scapula

Insert: Inferior facet of greater tubercle

Question 5

Subscapularis

Answer 5

Origin: Subscapular fossa

Insert: Lesser tubercle

Question 6

Teres Major

Answer 6

Origin: inferior angle of lateral border of scapula

Insert: Intertubercular groove MEDIAL LIP

Question 7

Deltoid

Answer 7

Origin: Exterior of bony horseshoe (lateral 1/3 clavicle, acromion, spine of scapula)

Insert: Deltoid tuberosity of humerus

Question 8

Serratus Posterior Superior

Answer 8

Origin: High Cs-Low Ts (C7-T2) spinous processes

Insert: upper Ribs

Question 8

Serratus Posterior Inferior

Answer 8

Origin: High Ts-Low Ls (T11-L2) spinous processes

Insert: lower Ribs

Question 9

Splenius

Answer 9

Origin: C3-T6 spinous processes

Insert: Mastoid process (capitus), C1-C3 transverse processes (cervicis)

Question 10

Erector Spinae Group

Answer 10

Origin: T11 - L5 spinous processes, sacrum, iliac crest

Insert: Ribs (I), cervical and thoracic TP and ribs (L), cervical and thoracic SP (S)

Question 11

Semispinalis

Answer 11

Origin: transverse processes (cervical and thoracic)

Insert: spinous processes (cervical and thoracic)

Question 12

Multifidus

Answer 12

Origin: transverse processes (all regions)

Insert: spinous processes (all regions)

Question 13

Rotatores

Answer 13

Origin: transverse processes (thoracic)

Insert: spinous processes (thoracic)

Question 14

Interspinales

Answer 14

Origin: superior surface of spinous processes

Insert: inferior surface of spinous processes

Question 15

Intertransversarii

Answer 15

Origin: superior surface of transverse processes

Insert: inferior surface of transverse processes

Question 16

Pectoralis Minor

Answer 16

Origin: Ribs 3-5

Insert: Coracoid process of scapula

Question 16

Levatores Costarum

Answer 16

Origin: lateral tips of transverse processes (thoracic)

Insert: Ribs ?

Question 17

Subclavius

Answer 17

Origin: Rib 1

Insert: inferior aspect of middle 1/3 of clavicle

Question 18

Pectoralis Major

Answer 18

Origin: manubrium, anterior aspect of middle 1/3 of clavicle, sternum

Insert: intertubercular groove of humerus LATERAL LIP

Question 19

Serratus Anterior

Answer 19

Origin: lateral surface of ribs 1-8

Insert: anterior surface of medial border of scapula

Question 20

Biceps Brachii

Answer 20

Origin: Supraglenoid tubercle (long), coracoid process (short) of scapula

Insert: Radial tuberosity

Question 21

Coracobrachialis

Answer 21

Origin: Coracoid process of scapula

Insert: Middle of medial aspect of humerus

Question 22

Brachialis

Answer 22

Origin: anterior lower half surface of humerus

Insert: coronoid process, ulnar tuberosity

Question 23

Triceps Brachii

Answer 23

Origin: infraglenoid tubercle of scapula (long), posterior humerus ABOVE (lateral) and BELOW (medial) radial groove

Insert: Olecranon process of ulna