Muscle origin and insertions

Question 1

What is the origin and insertion of the psoas major?

Answer 1

Origin –> Transverse processes T12-L5

Insertion –> Lesser trochanter of femur (with ilacus)

Question 2

What is the origin and insertion of the tibialis anterior?

Answer 2

Origin –> lateral condyle

Insertion –> Base of metatarsal 1 and medial cuneiform

Question 3

What is the origin and insertion of the deltoideus?

• Clavicularis
• Acromialis
• Spinalis

Answer 3

Origin –> Clavicle, Acromion, and Spina Scapula

Insertion –> Deltoid tuberosity

Question 4

What is the origin and insertion of the Pectoralis major?

Answer 4

Origin –> Sternum coastal cartilage 2-4

Insertion –> Intertubercle groove of humerus

Question 5

What is the origin and insertion of the biceps brachii?

• Longus
• Brevis

Answer 5

Origin –> Supraglenoid tubercle (of scapula), Coracoid process (of scapula)
Insertion –> Radial tuberosity

Question 6

What is the origin and insertion of the Triceps brachii?

Answer 6

Origin:
Longum –> Infraglenoid tuberosity
Mediale –> Posterior surface of humerus
Laterale –> Posterior surface of humerus

Insertion –> Olecranon

Question 7

What is the origin and insertion of the Trapezius?

Answer 7

Origin: (spinous processes C7 - T12)
Pars descendens –> Ligament nuchae
Pars transversa –> C7 - T3
Pars ascendens –> T9 - T12

Insertion:
P d –> Lateral third of clavicle
P t –> Acromion
P a –> Spina scapula

Question 8

What is the origin and insertion of the Rectus abdominis?

Answer 8

Origin –> Crest of pubis,

Insertion –> Pubis 5-7th rib

Question 9

What is the origin and insertion of the quadriceps?

Answer 9

Origin:
vastus medialis –> Intertrochanteric line
Rectus femoris –> AIIS (Anterior inferior iliac spine)
Vastus lateralis –> Greater trochanter
Vastus intermedialis –> Anterior lateral surface of femur

Insertion –> Tibial tuberoity

Question 10

What is the origin and insertion of the hamstrings?

Answer 10

Origin: –> Tuber ischiaticum

Insertion:
Biceos femoris –> Caput fibulae
Semitendinosus –> Medial superior tibia
Semimembranosus –> Medial condyle of tibia

Question 11

Gluts
Maximus
Minimus
Medius

Answer 11

Max
O –> Posterior gluteal line of ilium
I –> Facia lata and Gluteal tuberosity

Min
O –> Gluteal surface of ilium
I –> Greater trochanter

Med
O –> Gluteal surface of ilium
I –> Greater trochanter

Question 12

Palmaris longus

Answer 12

O –> Medial epicondyle of humerus

I –> Aponeurosis and Retinaculum

Question 13

Flexor
Digitorum superficialis
Carpi radialis
Carpi ulnaris

Answer 13

O –> Medial epicondyle of humerus

Digitorum
O –> Coronoid process (below radial tuberosity)
I –> middle phalanx 2-5

Radialis
I –> Base of metacarpal 2 – 3

Ulnaris
O –> Olecranon
I –> Pisiform and base of metacarpal 5

Question 14

Extensor
Carpi radialis longus
Digitorum
Carpi ulnaris

Answer 14

O –> Lateral supracondylar of humerus

Carpi radialis
I –> base of metacarple 2

Digitorum
I –> Middle phalanx 2-5

Carpi ulnaris
I –> Tubercle on ulna and base of 5th metacarpal