P-DAT 7 ARM And Cubital Fossa

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1.  Injury to this muscle will affect what movement of the forearm? 

Explanation

Injury to the muscle mentioned in the question will affect the movement of flexion in the forearm.

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About This Quiz
P-DAT 7 ARM And Cubital Fossa - Quiz

This quiz focuses on the anatomy of the arm and cubital fossa, assessing knowledge on muscle innervation, attachment, and underlying structures. It evaluates understanding of nerve-related clinical signs and injuries, crucial for learners preparing for the DAT.

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2.  Which muscle lies immediately deep to the tagged muscle? (Use Q2 Pic)

Explanation

The muscle that lies immediately deep to the tagged muscle is the Brachialis.

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3.  A patient has sustained a hard hit on the tagged area of the elbow joint. Which nerve is likely to be affected by this trauma?

Explanation

A hard hit on the tagged area of the elbow joint is likely to affect the ulnar nerve. The ulnar nerve runs along the inner side of the elbow and is vulnerable to injury when the elbow is struck. Damage to the ulnar nerve can result in symptoms such as numbness, tingling, and weakness in the hand and fingers, particularly the pinky and ring fingers.

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4.  What terminal branch of the brachial plexus innervates the tagged muscle?

Explanation

The correct answer is Musculocutaneous. The musculocutaneous nerve is a terminal branch of the brachial plexus that innervates the tagged muscle.

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5.  Wrist-Drop is a clinical sign of injury to the tagged nerve. This nerve is derived from which cervical nerve roots? 

Explanation

Wrist-Drop is a clinical sign of injury to the radial nerve. The radial nerve is derived from the cervical nerve roots C5, C6, C7, C8, and the thoracic nerve root T1.

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6.  Both heads of the tagged muscle attach onto different features of what bone?

Explanation

The correct answer is Scapula. Both heads of the tagged muscle attach onto different features of the scapula bone.

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7.  At the tagged area, what is the relationship of structures from the medial side to the lateral side?

Explanation

The correct answer shows the structures arranged from the medial side to the lateral side. The pronator teres muscle is the most medial structure, followed by the median nerve, brachial artery, biceps tendon, and finally the brachioradialis muscle, which is the most lateral structure.

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8.  After the tagged structure supplies muscles, it continues distally as what structure?

Explanation

The correct answer is the Lateral cutaneous nerve of the forearm. After the tagged structure supplies muscles, it continues distally as the Lateral cutaneous nerve of the forearm.

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9. Identify the tagged structure (blue arrows) on the anterior arm.

Explanation

The blue arrows in the image indicate the Brachial vein on the anterior arm.

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10.  The tagged artery (blue arrow) forms an anastomosis with which artery of the elbow joint?

Explanation

The correct answer is Posterior ulnar recurrent. An anastomosis is a connection between two blood vessels. In the elbow joint, the tagged artery forms an anastomosis with the Posterior ulnar recurrent artery.

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  • Oct 09, 2011
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  • Answered
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 Injury to this muscle will affect what movement of the...
 Which muscle lies immediately deep to the tagged muscle? (Use Q2...
 A patient has sustained a hard hit on the tagged area of the...
 What terminal branch of the brachial plexus innervates the...
 Wrist-Drop is a clinical sign of injury to the tagged nerve....
 Both heads of the tagged muscle attach onto different features...
 At the tagged area, what is the relationship of structures from...
 After the tagged structure supplies muscles, it continues...
Identify the tagged structure (blue arrows) on the anterior arm.
 The tagged artery (blue arrow) forms an anastomosis with which...
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