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Spot Test > Muscles of the Hand > Flashcards

Muscles of the Hand Flashcards

(46 cards)

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1
Q

Intrinsic muscle compartments of the hand?

A 
Thenar
Hypothenar
Adductor
Central (extrinsic tendons and lumbricals)
Interosseus
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2
Q

Innervation of Thenar Muscles?

A

Recurrent Branch of the Median Nerve (C8-T1)

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3
Q

Function of Opponens Pollicis?

A

Medially rotates the thumb.

Deep to other thenar muscles.

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4
Q

Origin of Opponens Pollicis?

A

Flexor Retinaculum

Trapezium Tubercle

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5
Q

Insertion of Opponens Pollicis?

A

Lateral margin of Metacarpal 1

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6
Q

Function of Abductor Pollicis Brevis

A

Abduction at the Metacarpo-phalangeal joint

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7
Q

Origin of Abductor Pollicis Brevis

A

Flexor Retinaculum

Scaphoid/Trapezium Tubercles

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8
Q

Insertion of Abductor Pollicis Brevis

A

Proximal Phalanx

Extensor Hood

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9
Q

Function of Flexor Pollicis Brevis

A

Flexion at the Metacarpo-phalangeal joint

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10
Q

Origin of Flexor Pollicis Brevis

A

Flexor Retinaculum

Trapezium Tubercle

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11
Q

Insertion of Flexor Pollicis Brevis

A

Proximal Phalanx

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12
Q

Innervation of Hypothenar muscles

A

Deep Branch of Ulnar Nerve (C8-T1)

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13
Q

Function of Opponens Digiti Minimi

A

Lateral Rotation of 5th Metacarpal

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14
Q

Origin of Opponens Digiti Minimi

A

Flexor Retinaculum

Hook of Hamate

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15
Q

Insertion of Opponens Digiti Minimi

A

Medial aspect of Metacarpal 5

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16
Q

Function of Abductor Digiti Minimi

A

Abduction at Metacarpo-phalangeal joint

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17
Q

Origin of Abductor Digiti Minimi

A

Pisiform bone and Pisohamate Ligament

Flexor Carpi Ulnaris ligament

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18
Q

Insertion of Abductor Digiti Minimi

A

Proxmial Phalanx of Digit 5

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19
Q

Function of Flexor Digiti Minimi Brevis

Study These Flashcards
A

Flexion at Metacarpo-phalangeal joint

20
Q

Origin of Flexor Digiti Minimi Brevis

Study These Flashcards
A

Flexor Retinaculum

Hook of Hamate

21
Q

Insertion of Flexor Digiti Minimi Brevis

Study These Flashcards
A

Proximal Phalanx of Digit 5

22
Q

Innervation of Adductor Pollicis?

Study These Flashcards
A

Deep Branch of Ulnar Nerve (C8-T1)

23
Q

Which vessel runs between the transverse and oblique heads of Adductor Pollicis on its way into the anterior side of the hand?

Study These Flashcards
A

Radial Artery

24
Q

Function of Adductor Pollicis

Study These Flashcards
A

Adduction of thumb

Opposition of the thumb e.g. during grip

25
Origin of Adductor Pollicis
Metacarpal 3 (TRANSVERSE HEAD) Metacarpals 2&3 (OBLIQUE HEAD) Oblique head is inferior
26
Insertion of Adductor Pollicis
Proximal Phalanx and Extensor Hood of thumb
27
Function of Lumbrical Muscles
Flexion of the Metacarpo-phalangeal joints WHILST extending the Interphalangeal Joints
28
Origin of Lumbricals
Tendons of Flexor Digitorum Profundus
29
Insertion of Lumbricals
Extensor Hoods
30
Innervation of Lumbricals 1 and 2
LUMBRICALS 1&2: Digital Branch of Median Nerve (C8-T1)
31
Innervation of Lumbricals 3 and 4
LUMBRICALS 3&4: Deep Branch of Ulnar Nerve (C8-T1)
32
Which lumbricals are unipennate and which ones are bipennate?
Lumbricals 1 and 2 UNIPENNATE Lumbricals 3 and 4 BIPENNATE
33
How many Palmer Interossei; are they uni or bi pennate?
3 unipennate muscles
34
Function of Palmer Interossei
Adduction of Digits about about Axial line PAD
35
Origin of Palmer Interossei
Sides of the Metacarpals 2, 4, and 5
36
Insertion of Palmer Interossei
Extensor Hoods of Digits 2, 4, and 5
37
Innervation of Palmer Interossei
Deep Branch of Ulnar Nerve (C8-T1)
38
Function of Dorsal Interossei
Abduction of Digits about the Axial Line DAB
39
How many Dorsal Interossei; are they uni or bi pennate?
4 Bipennate muscles
40
Origin of Dorsal Interossei
Sides of the adjacent Metacarpals
41
Insertion of Dorsal Interossei
Extensor Hoods and Proximal Phalanges of Digits 2, 3, and 4
42
Innervation of Dorsal Interossei
Deep Branch of Ulnar Nerve (C8-T1)
43
Function of Palmaris Brevis
Improves grip in the hand by pulling the skin taught
44
Origin of Palmaris Brevis
Skin of medial margin of hand
45
Insertion of Palmaris Brevis
Palmer Aponeurosis/ Flexor Retinaculum
46
Innervation of Palmaris Brevis
Superficial Branch of the Ulnar Nerve (C8-T1)

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