The Intrinsic Foot Muscles Flashcards

1
Q

TRUE or FALSE

There is only one intrinsic foot muscle in the dorsum of the foot.

A

TRUE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

(O) Superior/proximal attachment:
ANTERIOR DORSAL SURFACE OF CALCANEUS

(I) Inferior/distal attachment:
MEDIAL DISTAL 4 PHALANGES

Action:
EXTENSION OF MEDIAL 4 TOES

A

EXTENSOR DIGITORUM BREVIS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Where is extensor digitorum brevis located?

A

DORSUM OF THE FOOT

from DORSAL SURFACE OF CALCANEUS
to MEDIAL DISTAL 4 PHALANGES

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What action is extensor digitorum brevis responsible for?

A

EXTENSION OF MEDIAL 4 TOES

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Where does extensor digitorum brevis articulate superiorly and proximally?

A

ANTERIOR DORSAL SURFACE OF CALCANEUS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where does extensor digitorum brevis articulate inferiorly and distally?

A

MEDIAL DISTAL 4 PHALANGES

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How many muscular layers are there in the sole of the foot?

A

4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Name the 3 muscles in the first (most superficial) layer of the foot?

A
ABDUCTOR HALLUCIS
\+
FLEXOR DIGITORUM BREVIS
\+
ABDUCTOR DIGITI MINIMI
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

(O) Superior/proximal attachment:
MEDIAL PROCESS OF CALCANEUS AND PLANTAR APONEUROSIS

(I) Inferior/distal attachment:
MEDIAL SIDE OF THE BASE OF THE PROXIMAL PHALANX OF THE 1ST TOE

Action:
ABDUCTION OF 1ST TOE

A

ABDUCTOR HALLUCIS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

(O) Superior/proximal attachment:
MEDIAL PROCESS OF CALCANEUS AND PLANTAR APONEUROSIS

(I) Inferior/distal attachment:
BOTH SIDES OF MIDDLE PHALANGES OF 2ND-5TH TOES
***TENDONS SPLIT TO ATTACH TO SIDES OF PHALANX

Action:
FLEXION OF 2ND-5TH TOES

A

FLEXOR DIGITORUM BREVIS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

(O) Superior/proximal attachment:
MEDIAL PROCESS OF CALCANEUS AND PLANTAR APONEUROSIS

(I) Inferior/distal attachment:
LATERAL SIDE OF THE BASE OF THE PROXIMAL PHALANX OF THE 5TH TOE

Action:
ABDUCTION OF 5TH TOE

A

ABDUCTOR DIGITI MINIMI

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Abductor hallucis is responsible for which action?

A

ABDUCTION OF 1ST TOE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Name the superior proximal attachment for abductor hallucis?

A

MEDIAL PROCESS OF CALCANEUS AND PLANTAR APONEUROSIS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Name the inferior distal attachment for abductor hallucis?

A

MEDIAL SIDE OF THE BASE OF THE PROXIMAL PHALANX OF THE 1ST TOE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Flexor digitorum brevis is responsible for which action?

A

FLEXION OF 2ND-5TH TOES

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Name the superior proximal attachment for flexor digitorum brevis?

A

MEDIAL PROCESS OF CALCANEUS AND PLANTAR APONEUROSIS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Name the inferior distal attachment for flexor digitorum brevis?

A

BOTH SIDES OF MIDDLE PHALANGES OF 2ND-5TH TOES

***TENDONS SPLIT TO ATTACH TO SIDES OF PHALANX

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Abductor digiti minimi is responsible for which action?

A

ABDUCTION OF 5TH TOE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Name the superior proximal attachment for abductor digiti minimi?

A

MEDIAL PROCESS OF CALCANEUS AND PLANTAR APONEUROSIS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Name the inferior distal attachment for abductor digiti minimi?

A

LATERAL SIDE OF THE BASE OF THE PROXIMAL PHALANX OF THE 5TH TOE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

How many muscles are found in the second layer of the foot? Name them.

A

2 MUSCLES IN SECOND LAYER OF FOOT

QUADRATUS PLANTAE
+
LUMBRICALS

***tendons of FHL and FDL also in this layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

(O) Superior/proximal attachment:
PLANTAR SURFACE OF CALCANEUS

(I) Inferior/distal attachment:
POSTEROLATERAL MARGIN OF FDL TENDONS

Action:
ASSISTS IN FDL FLEXION OF LATERAL 4 DIGITS

A

QUADRATUS PLANTAE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

(O) Superior/proximal attachment:
FDL TENDONS

(I) Inferior/distal attachment:
EXTENSOR EXPANSION, AND MEDIAL SIDES OF PROXIMAL PHALANGES OF THE LATERAL 4 TOES

Action:
FLEXION OF THE MTP JOINTS
EXTENSION OF PIPs/DIPs

A

LUMBRICALS

24
Q

Quadratus plantae is responsible for which action?

A

ASSISTS IN FDL FLEXION OF LATERAL 4 DIGITS

25
Name the superior proximal attachment for quadratus plantae?
PLANTAR SURFACE OF CALCANEUS
26
Name the inferior distal attachment for quadratus plantae?
POSTEROLATERAL MARGIN OF FDL TENDONS
27
Lumbricals are responsible for which two actions?
FLEXION OF THE MTP JOINTS | EXTENSION OF PIPs/DIPs
28
Name the superior proximal attachment for lumbricals
FDL TENDONS
29
Name the inferior distal attachment for lumbricals
EXTENSOR EXPANSION, AND MEDIAL SIDES OF PROXIMAL PHALANGES OF THE LATERAL 4 TOES
30
The three muscles in the third layer of the foot and found in the _________ 1/2 of the foot.
ANTERIOR
31
___ muscles in the third layer act on the 1st toe; while ___ acts on the 5th.
2 ACT ON FIRST TOE | 1 ACTS ON 5TH TOE
32
(O) Superior/proximal attachment: PLANTAR SURFACE OF CUBOID AND 3RD CUNEIFORM (I) Inferior/distal attachment: BOTH SIDES OF BASE OF PROXIMAL PHALANX OF 1ST TOE Action: FLEXION OF 1ST MTP JOINT *** 2 SESAMOID BONES EMBEDDED IN TENDON WHICH PROTECT TENDONS FROM PRESSURE DURING STANDING AND WALKING
FLEXOR HALLUCIS BREVIS
33
(O) Superior/proximal attachment (OBLIQUE HEAD): BASES OF 2ND-4TH METATARSALS (O) Superior/proximal attachment (TRANSVERSE HEAD): PLANTAR LIGAMENTS OF THE MTP JOINTS (I) Inferior/distal attachment (BOTH HEADS): LATERAL SIDE OF BASE OF PROXIMAL PHALANX OF 1ST TOE Action: ADDUCTS 1ST TOE ***ALSO HELPS MAINTAIN TRANSVERSE ARCH
ADDUCTOR HALLUCIS
34
(O) Superior/proximal attachment: BASE OF 5TH METATARSAL (I) Inferior/distal attachment: BASE OF PROXIMAL PHALANX OF 5TH TOE Action: FLEXION OF 5TH MTP JOINT
FLEXOR DIGITI MINIMI BREVIS
35
Flexor hallucis brevis is responsible for which action?
FLEXION OF 1ST MTP JOINT
36
Name the superior proximal attachment for flexor hallucis brevis?
PLANTAR SURFACE OF CUBOID AND 3RD CUNEIFORM
37
Name the inferior distal attachment for flexor hallucis brevis?
BOTH SIDES OF BASE OF PROXIMAL PHALANX OF 1ST TOE
38
Adductor hallucis is responsible for which action?
ADDUCTS 1ST TOE
39
Name the superior proximal attachment for adductor hallucis oblique head?
BASES OF 2ND-4TH METATARSALS
40
Name the superior proximal attachment for adductor hallucis transverse head?
PLANTAR LIGAMENTS OF THE MTP JOINTS
41
Name the inferior distal attachment for adductor hallucis?
LATERAL SIDE OF BASE OF PROXIMAL PHALANX OF 1ST TOE
42
Flexor digiti minimi brevis is responsible for which action?
FLEXION OF 5TH MTP JOINT
43
Name the superior proximal attachment for flexor digiti minimi brevis?
BASE OF 5TH METATARSAL
44
Name the inferior distal attachment for flexor digiti minimi brevis?
BASE OF PROXIMAL PHALANX OF 5TH TOE
45
What are the two muscles found in the fourth and deepest layer of the foot?
DORSAL INTEROSSEI + PLANTAR INTEROSSEI
46
What are the movement acronyms associated with the muscles in the deepest layer of the foot?
DAB (DORSAL ABDUCTION) + PAD (PLANTAR ADDUCTION)
47
What is the midline reference when discussing abduction and adduction of the toes?
THROUGH THE 2ND TOE
48
(O) Superior/proximal attachment: ADJACENT SIDES OF METATARSALS (I) Inferior/distal attachment (1ST): MEDIAL SIDE OF PROXIMAL PHALANX OF 2ND TOE (I) Inferior/distal attachment (2ND - 5TH): LATERAL SIDES OF PROXIMAL PHALANGES 2ND-4TH TOES Action: ABDUCTION OF 2ND - 4TH MTP JOINTS (DAB)
DORSAL INTEROSSEI
49
(O) Superior/proximal attachment: BASES AND MEDIAL SIDES OF 3RD - 5TH METATARSALS (I) Inferior/distal attachment: MEDIAL SIDES OF BASES OF PROXIMAL PHALANGES 3 - 5 Action: ADDUCTION OF THE 3RD - 5TH MTP JOINTS (PAD)
PLANTAR INTEROSSEI
50
Dorsal interossei is responsible for which action?
ABDUCTION OF 2ND - 4TH MTP JOINTS (DAB)
51
Name the superior proximal attachment for dorsal interossei?
ADJACENT SIDES OF METATARSALS
52
Name the inferior distal attachment for dorsal interossei 1ST?
MEDIAL SIDE OF PROXIMAL PHALANX OF 2ND TOE
53
Name the inferior distal attachment for dorsal interossei 2ND - 5TH?
LATERAL SIDES OF PROXIMAL PHALANGES 2ND-4TH TOES
54
Abductor hallucis, flexor digitorum brevis, and abductor digiti minimi are found in which layer of the foot?
FIRST LAYER
55
Quadratus plantae and the lumbricals are found in which layer of the foot?
SECOND LAYER
56
Flexor hallucis brevis, adductor hallucis, and flexor digiti minimi brevis are found in which layer of the foot?
THIRD LAYER
57
Dorsal interossei and plantar interossei are found in which layer of the foot?
FOURTH LAYER