Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

CBS602 LL 2: Leg, Ankle and Foot > Muscles of the Leg, Ankle and Foot > Flashcards

Muscles of the Leg, Ankle and Foot Flashcards

1
Q

What are the primary movements of the ankle joint?

A

The ankle joint allows for dorsiflexion and plantarflexion.

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

What is dorsiflexion of the ankle?

A

Dorsiflexion is the movement where the foot moves upward towards the shin, decreasing the angle between the dorsum of the foot and the leg.

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

What is plantarflexion of the ankle?

A

Plantarflexion is the movement where the foot moves downward, increasing the angle between the dorsum of the foot and the leg.

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

Which movements occur at the subtalar joint of the ankle?

A

The subtalar joint allows for inversion and eversion of the foot.

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

What is inversion?

A

Inversion is the movement where the sole of the foot turns inward towards the midline.

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

What is eversion?

A

Eversion is the movement where the sole of the foot turns outward, away from the midline.

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

What movements occur at the metatarsophalangeal and interphalangeal joints of the foot?

A

The foot allows for flexion and extension at the metatarsophalangeal and interphalangeal joints.

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

What is flexion of the foot?

A

Flexion is the bending movement where the toes move downward, decreasing the angle between the phalanges and metatarsals.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is extension of the foot?

A

Extension is the movement where the toes are straightened, increasing the angle between the phalanges and metatarsals.

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

What is abduction of the foot?

A

Abduction is the movement of the toes away from the midline of the foot.

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

Which muscles make up the superficial layer of the posterior compartment of the leg?

A

The superficial layer includes the gastrocnemius, soleus, and plantaris.

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

Which muscles make up the deep layer of the posterior compartment of the leg?

A

The deep layer includes the popliteus, tibialis posterior, flexor digitorum longus, and flexor hallucis longus.

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

What nerve innervates the muscles of the posterior compartment of the leg?

A

The tibial nerve.

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

Which muscles are found in the anterior compartment of the leg?

A

The anterior compartment includes the tibialis anterior, extensor digitorum longus, extensor hallucis longus, and fibularis (peroneus) tertius.

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

What nerve innervates the muscles of the anterior compartment of the leg?

A

The deep fibular nerve.

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

Which muscles are found in the lateral compartment of the leg?

A

The lateral compartment includes the fibularis longus and fibularis brevis.

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

What nerve innervates the muscles of the lateral compartment of the leg?

A

The superficial fibular nerve.

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

Which muscles are found in the 1st layer of the plantar aspect of the foot?

A

The 1st layer includes abductor hallucis, flexor digitorum brevis, and abductor digiti minimi.

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

Which muscles are found in the 2nd layer of the plantar aspect of the foot?

A

The 2nd layer includes quadratus plantae and lumbricals.

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

Which muscles are found in the 3rd layer of the plantar aspect of the foot?

A

The 3rd layer includes flexor hallucis brevis, adductor hallucis, and flexor digiti minimi brevis.

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

Which muscles are found in the 4th layer of the plantar aspect of the foot?

A

The 4th layer includes plantar interossei and dorsal interossei.

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

Which muscles are found in the dorsal aspect of the foot?

A

The dorsal aspect includes extensor digitorum brevis and extensor hallucis brevis.

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

What is the deep fascia of the leg called, and with what is it continuous?

A

The deep fascia of the leg is called the crural fascia, and it is continuous with the fascia lata.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What does the interosseous membrane separate in the leg?

A

The interosseous membrane separates the anterior compartment from the posterior compartment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What does the anterior intermuscular septum separate?

A

The anterior intermuscular septum separates the anterior compartment from the lateral compartment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

What does the posterior intermuscular septum separate?

A

The posterior intermuscular septum separates the lateral compartment from the posterior compartment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What does the transverse intermuscular septum separate?

A

The transverse intermuscular septum separates the superficial posterior compartment from the deep posterior compartment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What are the two primary retinacula on the medial side of the ankle?

A

The flexor retinaculum and the structures associated with it, such as tibialis posterior, flexor digitorum longus, and flexor hallucis longus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What are the primary retinacula on the lateral side of the ankle?

A

The fibular (peroneal) retinacula, which stabilize the fibularis longus and fibularis brevis tendons.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Which retinaculum covers the tendons of tibialis anterior, extensor digitorum longus, and extensor hallucis longus?

A

The extensor retinaculum, which is continuous with the deep fascia of the leg.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Which muscles pass through the fibular (peroneal) retinacula?

A

The fibularis longus and fibularis brevis muscles.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Which retinaculum helps contain fibularis tertius and extensor digitorum longus tendons?

A

The extensor retinaculum.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

What forms the roof of the tarsal tunnel?

A

The flexor retinaculum.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

What is the function of the tarsal tunnel?

A

It provides a passage for structures to travel from the posterior leg to the foot.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

What is the function of the tarsal tunnel?

A

It provides a passage for structures to travel from the posterior leg to the foot.

36
Q

List the contents of the tarsal tunnel in order from anterior to posterior.

A

Tom: Tibialis posterior

Dick: Flexor digitorum longus

And: Posterior tibial artery

Very: Posterior tibial vein

Nervous: Tibial nerve

Harry: Flexor hallucis longus

37
Q

Which nerve passes through the tarsal tunnel?

A

The tibial nerve.

38
Q

What condition can occur when there is compression of the tibial nerve in the tarsal tunnel?

A

Tarsal tunnel syndrome.

39
Q

What is the origin and insertion of the Extensor Digitorum Longus?

A

Origin: Fibula & lateral tibial condyle

Insertion: Middle & distal phalanges of lateral four toes (via dorsal expansion)

40
Q

What action does the Extensor Digitorum Longus perform?

A

Ankle dorsiflexion and extension of the lateral four toes.

41
Q

What is the origin and insertion of the Tibialis Anterior?

A

Origin: Tibia & interosseous membrane

Insertion: Medial cuneiform & base of 1st metatarsal

42
Q

What actions does the Tibialis Anterior perform?

A

Ankle dorsiflexion and foot inversion.

43
Q

What is the origin and insertion of the Fibularis Tertius?

A

Origin: Distal fibula

Insertion: Base of 5th metatarsal

44
Q

What actions does the Fibularis Tertius perform?

A

Ankle dorsiflexion and foot eversion.

45
Q

What is the origin and insertion of the Extensor Hallucis Longus?

A

Origin: Fibula & interosseous membrane

Insertion: Distal phalanx of the great toe

46
Q

What action does the Extensor Hallucis Longus perform?

A

Ankle dorsiflexion and extension of the great toe.

47
Q

What nerve innervates all the muscles in the anterior compartment of the leg?

A

The deep fibular nerve.

48
Q

What is the origin and insertion of the Fibularis Longus?

A

Origin: Fibular head and superior 2/3 of fibula

Insertion: Base of 1st metatarsal & medial cuneiform

49
Q

What is the origin and insertion of the Fibularis Brevis?

A

Origin: Inferior 2/3 of fibula

Insertion: Base of 5th metatarsal

50
Q

What are the common actions of the Fibularis Longus and Fibularis Brevis?

A

Foot eversion

Weak ankle plantarflexion

Help support the arches of the foot

51
Q

What nerve innervates the lateral compartment of the leg?

A

The superficial fibular nerve.

52
Q

What structure holds down the fibularis tendons?

A

The fibular retinaculum.

53
Q

What is the insertion point of the Abductor Digiti Minimi?

A

Base of the proximal phalanx of the little toe.

54
Q

What actions does the Abductor Digiti Minimi perform?

A

Abduction and flexion of the little toe.

55
Q

Which nerve innervates the Abductor Digiti Minimi?

A

Lateral plantar nerve.

56
Q

What is the insertion point of the Flexor Digitorum Brevis?

A

Middle phalanges of the lateral four toes.

57
Q

What action does the Flexor Digitorum Brevis perform?

A

Flexion of the lateral four toes at the PIP joints.

58
Q

Which nerve innervates the Flexor Digitorum Brevis?

A

Medial plantar nerve.

59
Q

What is the insertion point of the Abductor Hallucis?

A

Base of the proximal phalanx of the great toe.

60
Q

What actions does the Abductor Hallucis perform?

A

Abduction and flexion of the great toe.

61
Q

Which nerve innervates the Abductor Hallucis?

A

Medial plantar nerve.

62
Q

What is the origin of the Lumbricals in the foot?

A

Tendons of flexor digitorum longus.

63
Q

Where do the Lumbricals insert?

A

Extensor hoods of the lateral four toes.

64
Q

What are the actions of the Lumbricals?

A

Flexion of the MTP joints and extension of the IP joints.

65
Q

Which nerves innervate the Lumbricals?

A

Medial plantar nerve for the 1st lumbrical, and lateral plantar nerve for the 2nd, 3rd, and 4th lumbricals.

66
Q

What is the insertion point of the Flexor Digiti Minimi Brevis?

A

Base of the proximal phalanx of the little toe.

67
Q

What action does the Flexor Digiti Minimi Brevis perform?

A

Flexion of the little toe.

68
Q

Which nerve innervates the Flexor Digiti Minimi Brevis?

A

Lateral plantar nerve.

69
Q

What is the insertion point of the Adductor Hallucis?

A

Base of the proximal phalanx of the great toe.

70
Q

What action does the Adductor Hallucis perform?

A

Adduction of the great toe.

71
Q

Which nerve innervates the Adductor Hallucis?

A

Lateral plantar nerve.

72
Q

What is the insertion point of the Flexor Hallucis Brevis?

A

Base of the proximal phalanx of the great toe (with sesamoid bones within its tendons).

73
Q

What action does the Flexor Hallucis Brevis perform?

A

Flexion of the great toe.

74
Q

Which nerve innervates the Flexor Hallucis Brevis?

A

Medial plantar nerve.

75
Q

What are the two heads of the Flexor Hallucis Brevis?

A

The transverse head and the oblique head.

76
Q

What is the origin of the Interossei muscles in the foot?

A

Metatarsals

77
Q

Where do the Interossei muscles insert?

A

Base of the proximal phalanx and extensor expansion.

78
Q

What is the action of the Plantar Interossei (PAD)?

A

Adduction of the toes toward the 2nd digit.

79
Q

What is the action of the Dorsal Interossei (DAB)?

A

Abduction of the toes away from the 2nd digit.

80
Q

Which nerve innervates the Interossei muscles?

A

Lateral plantar nerve.

81
Q

What is the common innervation of the muscles on the dorsal aspect of the foot?

A

Deep fibular nerve.

82
Q

Where does the Extensor Hallucis Longus insert?

A

Base of the proximal phalanx of the great toe.

83
Q

What action does the Extensor Hallucis Longus perform?

A

Extension of the great toe.

84
Q

Where does the Extensor Hallucis Brevis insert?

A

Base of the proximal phalanx of the great toe (similar to extensor hallucis longus).

85
Q

Where does the Extensor Digitorum Brevis insert?

A

Tendons of extensor digitorum longus (EDL).

86
Q

What is the action of the Extensor Digitorum Brevis?

A

Assists the extensor digitorum longus in the extension of digits 2 to 4.

87
Q

What tendons are visible on the dorsal aspect of the foot related to the extension of the toes?

A

Extensor Digitorum Longus tendons and extensor expansion.

CBS602 LL 2: Leg, Ankle and Foot (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions