Flexor Tendon Anatomy Of The Hand
This quiz explores the flexor tendon anatomy of the hand, focusing on muscle functions and anatomical origins. It assesses knowledge of key muscles like Flexor Digitorum Profundus and Flexor Pollicis Longus, crucial for medical and healthcare education.
- 1.
Which muscle flexes the fingers at the DIPJ?
- A.
Flexor Digitorum Superficialis
- B.
Flexor Pollicis Longus
- C.
Flexor Digitorum Profundus
- D.
Flexor Carpi Ulnaris
Correct Answer
C. Flexor Digitorum ProfundusExplanation
FDPRate this question:
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- 2.
What is the name of this flexor?
- A.
Flexor Digitorum Superficialis
- B.
Flexor Pollicis Longus
- C.
Flexor Digitorum Profundus
- D.
Flexor Carpi Ulnaris
Correct Answer
A. Flexor Digitorum SuperficialisExplanation
FDSRate this question:
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- 3.
Which muscle is responsible for IPJ flexion of the thumb?
- A.
Flexor Pollicis Brevis
- B.
Flexor Digitorum Profundus
- C.
Flexor Pollicis Longus
- D.
Flexor Digiti Minimi Brevis
Correct Answer
C. Flexor Pollicis LongusExplanation
FPLRate this question:
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- 4.
Where does the common flexor tendon originate?
- A.
Lateral epicondyle of the humerus
- B.
Olecranon process
- C.
Hook of the hamate
- D.
Medial epicondyle of the humerus
Correct Answer
D. Medial epicondyle of the humerusExplanation
Medial epicondyleRate this question:
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- 5.
What are the three main functions of the digital flexor sheath?
- A.
To facilitate smooth gliding of the tendons
- B.
To prevent infection of the flexor tendons
- C.
To act as a fulcrum to provide a mechanical advantage
- D.
To provide a source of tendon nutrition from synovial fluid
- E.
To facilitate isolated flexion of the PIPJ
- F.
To provide a motor nerve supply to the flexor tendons
Correct Answer(s)
A. To facilitate smooth gliding of the tendons
C. To act as a fulcrum to provide a mechanical advantage
D. To provide a source of tendon nutrition from synovial fluidExplanation
The digital flexor sheath has three main functions. First, it facilitates smooth gliding of the tendons, allowing for efficient movement of the fingers. Second, it acts as a fulcrum, providing a mechanical advantage that enhances the strength and efficiency of finger flexion. Lastly, the sheath provides a source of tendon nutrition by supplying synovial fluid, which nourishes and lubricates the tendons, promoting their health and function.Rate this question:
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Current Version
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Mar 19, 2023Quiz Edited by
ProProfs Editorial Team -
Mar 15, 2012Quiz Created by
Nosniktaw
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