Unit 3 Hand Flashcards by brooke desrosiers | Brainscape

Q

Bones

A

Carpals
Metacarpals
Phalanges
Thumb (pollicus)
Pinky (digiti minimi)

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Q

Phalanges of Fingers

A

Proximal
Middle
Distal

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Q

Phalanges of Thumb

A

Proximal
Distal

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Q

Carpal Bones

A

Scaphoid
Lunate
Triquetrum
Pisiform
Trapezium
Trapezoid
Capitate
Hamate

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Q

Hand Joints

A

Carpal metacarpal
Metacarpal phalangeal
Proximal interphalangeal
Distal interphalangeal

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Q

Scaphoid Fracture

A

Most common carpal bone fracture
Tenderness in anatomical snuff box

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Q

Scaphoid Blood Supply

A

Distal aspect
Compromise proximal segment

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Q

Scaphoid Injury Repercussions

A

Nonunion
Vascular necrosis

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Q

Vascular Necrosis

A

No blood supply to bone
Bone will die

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Q

Capri Extensor Muscles

A

Carpi ulnaris
Carpi radialis

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Q

Carpi Flexor Muscles

A

Carpi ulnaris
Carpi radials

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Q

Digitorum Extensor Muscles

A

Digitorum
Digiti minimi
Indicis

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Q

Digitorum Flexor Muscles

A

Digitorum (superficialis & profundus)

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Q

Outcropping (Thumb) Extensor Muscles

A

Abductor pollicus longus
Extensor pollicus longus
Extensor pollicus brevis

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Q

Carpi Muscle Function

A

Flexion/extension
Lateral/medial wrist deviation

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Q

Carpi Muscle Engagement

A

2 muscles required to preform functions

Q

Synovial Sheaths

A

Digitorum muscles
Reduce friction of tendon sliding over bones

Q

Lumbrical Muscle

A

Flexion at metacarpalphalangeal joint
Extension at interphalangeal joints

Q

Lumbrical Muscle Attachment

A

Dorsal hood

Q

Lumbrical Nerves

A

Digits 1 & 2 median nerve
Digits 3 & 4 ulnar nerve

Q

Dorsal Interossei Innervation

A

All 4 digits ulnar nerve

Q

Dorsi Interessi Muscle Function

A

Abduct digits from midline

Q

Palmar Interossi Innervation

A

All 3 locations ulnar nerve

Q

Palmar Interossi Muscle Function

A

Adduct digits to midline
Both sides of thumb & outside of pinky

Q

Thumb & Pinky Muscles

A

Thenar (thumb side)
Hypothenar (pinky side)

Q

Thenar Innervation

A

Median
Ulnar

Q

Hypothenar Innervation

A

Ulnar