Podcast
Questions and Answers
Which muscle shares the same innervation as the abductor digiti minimi?
Which muscle shares the same innervation as the abductor digiti minimi?
- Palmaris brevis
- Dorsal interossei
- Opponens digiti minimi (correct)
- Flexor digiti minimi
Which muscle is responsible for the motion of moving the little finger towards the thumb?
Which muscle is responsible for the motion of moving the little finger towards the thumb?
- Flexor digiti minimi
- Palmaris brevis
- Opponens digiti minimi (correct)
- Abductor digiti minimi
Which muscle's insertion is located on the base of the proximal phalanx of the little finger?
Which muscle's insertion is located on the base of the proximal phalanx of the little finger?
- Opponens digiti minimi
- Flexor digiti minimi (correct)
- Abductor digiti minimi (correct)
- Palmaris brevis
Which muscle has an origin that is NOT found on the hook of hamate?
Which muscle has an origin that is NOT found on the hook of hamate?
Which muscle group contributes to abduction of the fingers?
Which muscle group contributes to abduction of the fingers?
Flashcards
Abductor digiti minimi
Abductor digiti minimi
Muscle responsible for little finger abduction at the MCP joint; originates from pisiform and inserts on the ulnar side of the proximal phalanx #5.
Flexor digiti minimi
Flexor digiti minimi
Muscle that flexes the little finger at the MCP joint; originates from the hook of hamate and inserts at the base of proximal phalanx #5.
Opponens digiti minimi
Opponens digiti minimi
Muscle that allows opposition of the little finger; originates from hook of hamate and inserts on the ulnar side of the fifth metacarpal shaft.
Lumbar muscles
Lumbar muscles
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Hypothenar muscles
Hypothenar muscles
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Study Notes
Hypothenar Muscles
-
Abductor Digiti Minimi: Abducts the little finger at the metacarpophalangeal (MCP) joint
- Origin: Pisiform
- Insertion: Ulnar side of the base of proximal phalanx #5
- Nerve: Deep branch of the ulnar nerve (C8, T1)
-
Flexor Digiti Minimi: Flexes the little finger at the MCP joint
- Origin: Hook of Hamate
- Insertion: Base of proximal phalanx #5
-
Opponens Digiti Minimi: Produces opposition of the little finger
- Origin: Hook of Hamate
- Insertion: Ulnar side of the shaft of metacarpal #5
Other Intrinsic Muscles
- Palmaris Brevis: (Function not specified in the provided text)
- Lumbricals (1 & 2): (Function not specified in the provided text)
- Lumbricals (3 & 4): (Function not specified in the provided text)
- Palmar Interossei: (Function not specified in the provided text)
- Dorsal Interossei: (Function not specified in the provided text)
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Description
Test your knowledge on the hypothenar muscles and their functions in the hand. This quiz covers the origins, insertions, and nerves associated with these muscles. Perfect for anatomy students and professionals looking to refresh their understanding of hand musculature.
