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Anatomy Quiz: Pectoral Girdle and Clavicle

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Anatomy Quiz: Pectoral Girdle and Clavicle

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Questions and Answers

What is the primary function of the clavicle in relation to the shoulder girdle?

To provide attachment for muscles solely

To protect the underlying thoracic organs

To serve as a strut between the sternum and scapula (correct)

To facilitate the rotation of the scapula

Which joint connects the clavicle to the manubrium of the sternum?

Acromioclavicular joint

Sternoclavicular joint (correct)

Glenohumeral joint

Coracoclavicular joint

Which characteristic of the clavicle is true regarding its anatomical positioning?

It lies horizontally on the outer superior aspect of the chest (correct)

It is a flat bone with no significant curvature

It is located vertically along the chest

It is only present in the posterior aspect of the body

What is the lateral articulation point of the clavicle?

<p>Acromion of the scapula</p> Signup and view all the answers

Which statement describes the clavicle's palpability and structure?

<p>It is superficial and easily palpable</p> Signup and view all the answers

Study Notes

Pectoral Girdle

Composed of a single bone: the clavicle.
Functions to connect the upper limb to the axial skeleton.

Clavicle

Superficial and palpable bone located horizontally on the upper chest.
Exhibits curvatures for anatomical function.
Medially articulates with the manubrium of the sternum through the sternoclavicular joint.
Laterally articulates with the acromion of the scapula through the acromioclavicular joint.

Shoulder

Structure that facilitates attachment of the arm to the body.

Scapula

A triangular bone featuring two surfaces and three borders.
Key components:
- Superior angle, superior border, and superior spine.
- Supraspinous fossa for muscle attachment.
- Medial border, inferior angle, and infraspinous fossa.
- Lateral border leading to the glenoid cavity and acromion.

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Description

Test your knowledge about the pectoral girdle and the clavicle in this anatomy quiz. Explore details on the structure, articulation points, and significance of the clavicle. Perfect for students learning human anatomy or preparing for exams.