Bones Of The Upper Limb

Bones Of Upper Limb Enumerate The Muscles In The Upper Limb Having More Than 1 Head

Bones Of Upper Limb Pectoralis Major

1. Sternal head, and
2. Clavicular head.

Bones Of Upper Limb Biceps

1. Long head, and
2. Short head.

Read And Learn More: Anatomy Notes And Important Questions and Answers

Bones Of Upper Limb Triceps

1. Long head,
2. Lateral head, and
3. Medial head.

Bones Of Upper Limb Pronator Teres

1. Humeral head, and
2. Ulnar head.

Bones Of Upper Limb Flexor Pollicis Longus

1. Superficial head, and
2. Deep head.

Bones Of The Upper Limb Enumerate The Peculiarities Of The Clavicle

 

The Peculiarities Of The Clavicle Morphologically

1. It is only long bone kept horizontally

2. Not having

1. Three borders,
2. Three surfaces, and
3. Medullary cavity.

3. Pierced by nerves (middle supraclavicular nerve).

The Peculiarities Of Clavicle Development

1. Develops from one primary center and two secondary centers, and
2. Ossifies partly in the membrane and partly in cartilage.
3. First bone to ossify in the body.

Axial Skeleton

The Axial Skeleton Coracoid Process Introduction

It is a process of a scapula projecting forward and slightly laterally.

1. Axial Skeleton Coracoid Process Evolution

Axial Skeleton represents the ventral element of the scapula and is homologous to the ischium of the hip bone.

Axial Skeleton is a type of atavistic epiphysis.

2. Axial Skeleton Coracoid Process Attachments

1. Axial Skeleton gives attachment to the following muscles.

1. The short head of the biceps and coracobrachialis. They are attached to the tip of the coracoid process. The coracobrachialis is attached medially and the short head of the biceps is lateral.
2. Pectoralis minor: It inserts on the superior surface and medial border of the coracoid process.

Axial Skeleton

2. Axial Skeleton gives attachment to the following ligaments.

1. Coracohumeral ligament which extends from the lateral border of the coracoid process to the anatomical neck of the humerus.
2.Coracoacromial ligament: It is attached to coracoid and acromial process of scapula.
3. Coracoclavicular ligament: It is a strong band between the coracoid process and the clavicle. It consists of

1. Conoid part: It is a vertical  lar band. The base is attached to the conoid tubercle of the clavicle and the apex is attached to the root of the coracoid process,
2. The Trapezoid part is attached to the trapezoid line.

4. Costocoracoid ligament: It extends from the coracoid process to the 1st rib. It is a thickening of clavipectoral fascia.

3. Axial Skeleton Coracoid Process Applied Anatomy:

The weight of the upper limb is transmitted from the scapula to the clavicle through the coracoclavicular ligament.

The weight from the clavicle to the axial skeleton (sternum) is transmitted through the sternoclavicular ligament.

Note:

The coracoid process of the scapula is compared with the bent finger.

The Ligaments And Muscles Attached To Segments Of The Coracoid Process