Osteology and Surface Anatomy of the Upper Limb Human Anatomy Quiz

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What are the two main subdivisions of the body skeleton?

Axial skeleton and Appendicular skeleton

Name the regions of the upper limb in surface anatomy.

Shoulder, Arm, Forearm, Hand

List the bones of the upper limb mentioned in the text.

Clavicle, Scapula, Humerus, Ulna, Radius, Carpals, Metacarpals

What are the functions of the upper limbs?

Grasping, Holding, Positioning the hand in space, Communication (touch, gestures) Signup and view all the answers

Describe the structure of the clavicle.

Connects sternum to scapula, has two curves (convex and concave anteriorly), with a smooth superior surface and a rough inferior view. Signup and view all the answers

What are the attachments on the inferior view of the clavicle?

Conoid tubercle (conoid ligament), Trapezoid line (trapezoid ligament), Impression of costoclavicular ligament, Subclavian groove (attachment for subclavius muscle) Signup and view all the answers

What are the two carpal bones in the distal row that provide flexibility in the wrist?

Trapezium and Trapezoid Signup and view all the answers

Which bone in the forearm is longer than the radius and stabilizes the forearm?

Ulna Signup and view all the answers

What is the important structure in the radius that serves as a pulley for the extensor muscle of the thumb?

Dorsal tubercle Signup and view all the answers

How many carpal bones make up the wrist (carpus)?

8 Signup and view all the answers

What are the two bones in the proximal row of carpal bones, from lateral to medial?

Scaphoid and Lunate Signup and view all the answers

What is the name of the joint that connects the wrist to the hand (metacarpus)?

Knuckle Signup and view all the answers

What is the shape of the scapula?

Triangular Signup and view all the answers

Which aspect of the thorax does the scapula's posterolateral surface face?

Ribs 2-7 Signup and view all the answers

What divides the posterior surface of the scapula into supra and infra-spinous fossae?

Spine Signup and view all the answers

What is the name of the fossa on the anterior surface of the scapula?

Subscapular fossa Signup and view all the answers

Which bone articulates with the scapula at the glenohumeral joint?

Humerus Signup and view all the answers

What is the name of the cavity on the head of the humerus?

Glenoid cavity Signup and view all the answers