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Hand bones anatomy quiz

Assess the knowledge of hand osteology. The test examines the anatomy of the carpal, metacarpal, and phalangeal bones, their topography, articular surfaces, and processes.

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1. Which bone of the proximal carpal row is most laterally located?

Navicular bone.

The scaphoid bone (os scaphoideum) occupies the most lateral position in the proximal carpal row.
Lunate bone

The scaphoid bone (os scaphoideum) occupies the most lateral position in the proximal carpal row.
Trihedral bone

The scaphoid bone (os scaphoideum) occupies the most lateral position in the proximal carpal row.
Pisiform bone

The scaphoid bone (os scaphoideum) occupies the most lateral position in the proximal carpal row.
I find it difficult to answer

The scaphoid bone (os scaphoideum) occupies the most lateral position in the proximal carpal row.

2. Which carpal bone is characterized by having a hook-shaped process (hamulus)?

Capitate bone

The hamate bone (os hamatum) is easily recognized by its hooked process, which protrudes on the palmar surface.
Trapezium

The hamate bone (os hamatum) is easily recognized by its hooked process, which protrudes on the palmar surface.
Trapezoid

The hamate bone (os hamatum) is easily recognized by its hooked process, which protrudes on the palmar surface.
Uncinate bone

The hamate bone (os hamatum) is easily recognized by its hooked process, which protrudes on the palmar surface.
I find it difficult to answer

The hamate bone (os hamatum) is easily recognized by its hooked process, which protrudes on the palmar surface.

3. Which carpal bone is the largest and occupies a central position in the distal row?

Navicular bone.

The capitate bone (os capitatum) is the largest component of the carpus, located at the center of the distal row.
Uncinate bone

The capitate bone (os capitatum) is the largest component of the carpus, located at the center of the distal row.
Capitate bone

The capitate bone (os capitatum) is the largest component of the carpus, located at the center of the distal row.
Trapezoid

The capitate bone (os capitatum) is the largest component of the carpus, located at the center of the distal row.
I find it difficult to answer

The capitate bone (os capitatum) is the largest component of the carpus, located at the center of the distal row.

4. The base of the first metacarpal bone articulates with which carpal bone?

Trapezium

The saddle joint of the thumb is formed by the articulation of the base of the first metacarpal bone and the trapezium bone (os trapezium).
Trapezoid

The saddle joint of the thumb is formed by the articulation of the base of the first metacarpal bone and the trapezium bone (os trapezium).
Capitate bone

The saddle joint of the thumb is formed by the articulation of the base of the first metacarpal bone and the trapezium bone (os trapezium).
Navicular bone.

The saddle joint of the thumb is formed by the articulation of the base of the first metacarpal bone and the trapezium bone (os trapezium).
I find it difficult to answer

The saddle joint of the thumb is formed by the articulation of the base of the first metacarpal bone and the trapezium bone (os trapezium).

5. To which group do the pisiform bones (os pisiforme) belong according to the classification?

Tubular bones

The pisiform bone is a sesamoid bone located within the tendon of the flexor carpi ulnaris.
Sesamoid bones

The pisiform bone is a sesamoid bone located within the tendon of the flexor carpi ulnaris.
Flat bones

The pisiform bone is a sesamoid bone located within the tendon of the flexor carpi ulnaris.
Air-filled bones

The pisiform bone is a sesamoid bone located within the tendon of the flexor carpi ulnaris.
I find it difficult to answer

The pisiform bone is a sesamoid bone located within the tendon of the flexor carpi ulnaris.

6. Which carpal bone predominantly articulates with the lateral articular surface of the radius?

Navicular bone

The scaphoid bone articulates with the lateral part of the radial articular surface, participating in the radiocarpal joint.
Lunate bone

The scaphoid bone articulates with the lateral part of the radial articular surface, participating in the radiocarpal joint.
Triquetral bone

The scaphoid bone articulates with the lateral part of the radial articular surface, participating in the radiocarpal joint.
Capitate bone

The scaphoid bone articulates with the lateral part of the radial articular surface, participating in the radiocarpal joint.
I find it difficult to answer

The scaphoid bone articulates with the lateral part of the radial articular surface, participating in the radiocarpal joint.

7. Which bone of the distal carpal row is positioned most medially?

Capitate bone

The hamate bone (os hamatum) is located on the very edge of the medial (ulnar) side of the distal row.
Uncinate bone

The hamate bone (os hamatum) is located on the very edge of the medial (ulnar) side of the distal row.
Trapezoid

The hamate bone (os hamatum) is located on the very edge of the medial (ulnar) side of the distal row.
Trapezium

The hamate bone (os hamatum) is located on the very edge of the medial (ulnar) side of the distal row.
I find it difficult to answer

The hamate bone (os hamatum) is located on the very edge of the medial (ulnar) side of the distal row.

8. With which bone does the pisiform bone articulate its only articular surface?

Radius

The pisiform bone articulates exclusively with the anterior (palmar) surface of the triquetral bone.
Hamate bone

The pisiform bone articulates exclusively with the anterior (palmar) surface of the triquetral bone.
Lunate bone

The pisiform bone articulates exclusively with the anterior (palmar) surface of the triquetral bone.
Triquetral bone

The pisiform bone articulates exclusively with the anterior (palmar) surface of the triquetral bone.
I find it difficult to answer

The pisiform bone articulates exclusively with the anterior (palmar) surface of the triquetral bone.

9. On the base of which metacarpal bone on the dorsal side is there a styloid process (processus styloideus)?

On the first metacarpal bone

A characteristic styloid process (processus styloideus) is located on the dorsolateral part of the base of the third metacarpal bone.
On the second metacarpal bone

A characteristic styloid process (processus styloideus) is located on the dorsolateral part of the base of the third metacarpal bone.
On the third metacarpal bone

A characteristic styloid process (processus styloideus) is located on the dorsolateral part of the base of the third metacarpal bone.
On the fifth metacarpal bone

A characteristic styloid process (processus styloideus) is located on the dorsolateral part of the base of the third metacarpal bone.
I find it difficult to answer

A characteristic styloid process (processus styloideus) is located on the dorsolateral part of the base of the third metacarpal bone.

10. Which bones form the lateral eminence of the wrist (eminentia carpi radialis)?

Scaphoid and lunate bones

The radial wrist eminence is formed by the tubercles of the scaphoid and trapezium bones.
The scaphoid bone and the trapezium

The radial wrist eminence is formed by the tubercles of the scaphoid and trapezium bones.
Trapezoid and capitate bones

The radial wrist eminence is formed by the tubercles of the scaphoid and trapezium bones.
Capitate and hamate bones

The radial wrist eminence is formed by the tubercles of the scaphoid and trapezium bones.
I find it difficult to answer

The radial wrist eminence is formed by the tubercles of the scaphoid and trapezium bones.

11. Which carpal bone has a half-moon shape and is located between the scaphoid and triquetral bones?

Pisiform bone

The lunate bone (os lunatum) is located at the center of the proximal row, having a characteristic concave surface.
Capitate bone

The lunate bone (os lunatum) is located at the center of the proximal row, having a characteristic concave surface.
Trapezoid

The lunate bone (os lunatum) is located at the center of the proximal row, having a characteristic concave surface.
Lunate bone

The lunate bone (os lunatum) is located at the center of the proximal row, having a characteristic concave surface.
I find it difficult to answer

The lunate bone (os lunatum) is located at the center of the proximal row, having a characteristic concave surface.

12. What is the name of the part of a metacarpal bone that has a spherical articular surface for articulation with the proximal phalanx?

Head

The head (caput) of a metacarpal bone represents the distal epiphysis, articulating with the corresponding phalanx.
Body

The head (caput) of a metacarpal bone represents the distal epiphysis, articulating with the corresponding phalanx.
Base

The head (caput) of a metacarpal bone represents the distal epiphysis, articulating with the corresponding phalanx.
Neck

The head (caput) of a metacarpal bone represents the distal epiphysis, articulating with the corresponding phalanx.
I find it difficult to answer

The head (caput) of a metacarpal bone represents the distal epiphysis, articulating with the corresponding phalanx.

13. How many phalanges does the thumb (pollex) normally contain?

One phalanx

The first finger (pollex) morphologically differs from the other fingers by having only two phalanges: proximal and distal.
Three phalanges

The first finger (pollex) morphologically differs from the other fingers by having only two phalanges: proximal and distal.
Two phalanges

The first finger (pollex) morphologically differs from the other fingers by having only two phalanges: proximal and distal.
Four phalanges

The first finger (pollex) morphologically differs from the other fingers by having only two phalanges: proximal and distal.
I find it difficult to answer

The first finger (pollex) morphologically differs from the other fingers by having only two phalanges: proximal and distal.

14. Where is the tuberosity of the distal phalanx (tuberositas phalangis distalis) located on the phalanges of the fingers?

On the proximal base

The tuberosity (tuberositas) of the distal phalanx is located at the distal end of its palmar surface and serves as a site of tissue attachment.
On the distal end of the palmar surface

The tuberosity (tuberositas) of the distal phalanx is located at the distal end of its palmar surface and serves as a site of tissue attachment.
At the midshaft of the phalanx

The tuberosity (tuberositas) of the distal phalanx is located at the distal end of its palmar surface and serves as a site of tissue attachment.
On the dorsal surface

The tuberosity (tuberositas) of the distal phalanx is located at the distal end of its palmar surface and serves as a site of tissue attachment.
I find it difficult to answer

The tuberosity (tuberositas) of the distal phalanx is located at the distal end of its palmar surface and serves as a site of tissue attachment.

15. Which structures form the medial (ulnar) eminence of the wrist (eminentia carpi ulnaris)?

Pisiform bone and the hook of the hamate bone

The ulnar wrist eminence (eminentia carpi ulnaris) is formed by the pisiform bone and the hook of the hamate bone.
Triquetral and lunate bones

The ulnar wrist eminence (eminentia carpi ulnaris) is formed by the pisiform bone and the hook of the hamate bone.
Capitate bone and fifth metacarpal bone

The ulnar wrist eminence (eminentia carpi ulnaris) is formed by the pisiform bone and the hook of the hamate bone.
Trapezium bone and scaphoid bone

The ulnar wrist eminence (eminentia carpi ulnaris) is formed by the pisiform bone and the hook of the hamate bone.
I find it difficult to answer

The ulnar wrist eminence (eminentia carpi ulnaris) is formed by the pisiform bone and the hook of the hamate bone.

16. What shape does the articular surface of the capitate head, facing the proximal row, have?

Flat.

The head of the capitate bone has a rounded shape, entering a deep notch formed by the bones of the proximal row.
Saddle-shaped.

The head of the capitate bone has a rounded shape, entering a deep notch formed by the bones of the proximal row.
Ellipsoidal.

The head of the capitate bone has a rounded shape, entering a deep notch formed by the bones of the proximal row.
Ball-shaped.

The head of the capitate bone has a rounded shape, entering a deep notch formed by the bones of the proximal row.
I find it difficult to answer

The head of the capitate bone has a rounded shape, entering a deep notch formed by the bones of the proximal row.

17. Which bone of the distal carpal row is located between the trapezium and capitate bones?

Navicular bone.

The trapezoid bone (os trapezoideum) is anatomically wedged in the distal row between the trapezium and capitate bones.
Trapezoid

The trapezoid bone (os trapezoideum) is anatomically wedged in the distal row between the trapezium and capitate bones.
Trihedral bone

The trapezoid bone (os trapezoideum) is anatomically wedged in the distal row between the trapezium and capitate bones.
Uncinate bone

The trapezoid bone (os trapezoideum) is anatomically wedged in the distal row between the trapezium and capitate bones.
I find it difficult to answer

The trapezoid bone (os trapezoideum) is anatomically wedged in the distal row between the trapezium and capitate bones.

18. How many bones in total form the wrist (carpus)?

Six bones

The adult wrist consists of 8 bones, arranged in two rows of 4 bones each.
Ten bones

The adult wrist consists of 8 bones, arranged in two rows of 4 bones each.
Eight bones

The adult wrist consists of 8 bones, arranged in two rows of 4 bones each.
Five bones

The adult wrist consists of 8 bones, arranged in two rows of 4 bones each.
I find it difficult to answer

The adult wrist consists of 8 bones, arranged in two rows of 4 bones each.

19. What was the historical name for the trapezoid bone (os trapezoideum)?

Lesser multangular bone

Historically, the os trapezoideum was called os multangulum minus (lesser multangular bone) as opposed to the trapezium bone.
Greater multangular bone

Historically, the os trapezoideum was called os multangulum minus (lesser multangular bone) as opposed to the trapezium bone.
Uncinate bone

Historically, the os trapezoideum was called os multangulum minus (lesser multangular bone) as opposed to the trapezium bone.
Navicular bone.

Historically, the os trapezoideum was called os multangulum minus (lesser multangular bone) as opposed to the trapezium bone.
I find it difficult to answer

Historically, the os trapezoideum was called os multangulum minus (lesser multangular bone) as opposed to the trapezium bone.

20. What structure forms the concavity (bed) of the wrist groove (sulcus carpi)?

Flexor retinaculum

The carpal groove is formed by the concavity of the palmar surface of the carpal bones; it is topped by the flexor retinaculum.
Thenar muscles

The carpal groove is formed by the concavity of the palmar surface of the carpal bones; it is topped by the flexor retinaculum.
Flexor tendons

The carpal groove is formed by the concavity of the palmar surface of the carpal bones; it is topped by the flexor retinaculum.
Palmar surface of the carpal bones

The carpal groove is formed by the concavity of the palmar surface of the carpal bones; it is topped by the flexor retinaculum.
I find it difficult to answer

The carpal groove is formed by the concavity of the palmar surface of the carpal bones; it is topped by the flexor retinaculum.