7. AXILLA & UPPER LIMB- ORMAN

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| By Ykaan2000

Ykaan2000

Community Contributor

Quizzes Created: 15 | Total Attempts: 11,515

Questions: 8 | Attempts: 195 | Updated: Mar 21, 2023

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8 SORUDAN 6 SORU VEYA DAHA AZ BİLDİYSEN BİR DAHA OKU!

Questions and Answers

1.

Axilla is an irregular pyramidal space inferior to the shoulder joint at the junction of the arm & thorax.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The statement is true because the axilla is indeed an irregular pyramidal space located below the shoulder joint, where the arm and thorax meet. The axilla is an important anatomical region as it contains various blood vessels, nerves, and lymph nodes that play a crucial role in the movement and function of the upper limb.

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2.

The cervico-axillary canal forms the axillary outlet.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
The cervico-axillary canal does not form the axillary outlet. The axillary outlet is formed by the clavicle, the first rib, and the superior border of the scapula. The cervico-axillary canal, on the other hand, is a passage between the neck and the axilla that allows for the passage of nerves and blood vessels. Therefore, the given statement is false.

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3.

The axillary artery is the major blood vessel supplying the upper limb.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
The axillary artery is not the major blood vessel supplying the upper limb. While it is an important artery that supplies blood to the shoulder and upper arm, the brachial artery is the major blood vessel that supplies the upper limb. The brachial artery runs down the arm and gives rise to several branches that supply blood to the forearm and hand.

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4.

The deltoid muscle is the abductor of the arm.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The deltoid muscle is responsible for the abduction of the arm, meaning it moves the arm away from the body. This muscle is located in the shoulder and is triangular in shape, hence the name deltoid. When the deltoid muscle contracts, it pulls the arm away from the midline of the body, allowing for movements such as raising the arm to the side or reaching outwards. Therefore, the statement that the deltoid muscle is the abductor of the arm is true.

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5.

The brachial plexus is formed by anterior rami (branches) of C5-C8 +T1 spinal nerves.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The brachial plexus is indeed formed by the anterior rami (branches) of the C5-C8 and T1 spinal nerves. These nerves come together and form a network of nerves that innervate the upper limb. The brachial plexus is responsible for providing motor and sensory innervation to the muscles and skin of the arm, forearm, and hand. Therefore, the statement "The brachial plexus is formed by anterior rami (branches) of C5-C8 +T1 spinal nerves" is true.

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6.

The posterior compartment of the arm contains one muscle only: triceps brachii muscle.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The posterior compartment of the arm indeed contains only one muscle, which is the triceps brachii muscle. This muscle is responsible for extending the forearm at the elbow joint. It is located at the back of the upper arm and is composed of three heads: the long head, lateral head, and medial head. The triceps brachii muscle plays a crucial role in various arm movements and is essential for activities such as pushing and throwing. Therefore, the statement "True" accurately describes the contents of the posterior compartment of the arm.

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7.

The forearm is the part of the upper limb between the elbow wrist joints.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The statement is true because the forearm is indeed the part of the upper limb that lies between the elbow and wrist joints. It is located between the two long bones of the upper arm (the humerus) and the hand. The forearm contains muscles that are responsible for movements of the wrist, hand, and fingers.

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8.

The hand is subdivided into three parts: Wrist (carpus); Metacarpus;Digits (five fingers including the thumb).
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The statement is true because the hand is indeed subdivided into three parts: the wrist (carpus), the metacarpus, and the digits (which include the five fingers, including the thumb). This division is anatomically accurate and commonly accepted in medical and anatomical literature.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

Current Version
Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
May 06, 2015

Quiz Created by
Ykaan2000

7. Axilla & Upper Limb- Orman

Axilla is an irregular pyramidal space inferior to the shoulder joint at the junction of the arm & thorax.

The cervico-axillary canal forms the axillary outlet.

The axillary artery is the major blood vessel supplying the upper limb.

The deltoid muscle is the abductor of the arm.

The brachial plexus is formed by anterior rami (branches) of C5-C8 +T1 spinal nerves.

The posterior compartment of the arm contains one muscle only: triceps brachii muscle.

The forearm is the part of the upper limb between the elbow wrist joints.

The hand is subdivided into three parts: Wrist (carpus); Metacarpus;Digits (five fingers including the thumb).