Brainscape's Knowledge GenomeTM

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


See full index

Anatomy Exam 3 > Leg Muscles > Flashcards

Leg Muscles Flashcards

1
Q

What are the muscles of the Anterior Compartment of the Leg?

A
  • Tibialis anterior
  • Extensor digitorum longus
  • Extensor Hallucis longus
  • Fibularis (Peroneus) Tertius
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the muscles of the Lateral Compartment of the Leg?

A
  • Fibularis (Peroneus) Longus

- Fibularis (Peroneus) Brevis

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

What is the origin (proximal attachment) of the Tibialis anterior?

A

LATERAL CONDYLE and superior half of lateral surface of TIBIA and interosseous membrane

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

What is the insertion (distal attachment) of the Tibialis anterior?

A

Medial and inferior surface of MEDIAL CUNEIFORM and base of 1st metatarsal

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

What is the main action of the Tibialis anterior?

A

Dorsiflexes ankle and inverts foot

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

What is the origin (proximal attachment) of the Extensor digitorum longus?

A

LATERAL CONDYLE of Tibia and superior 3/4 of medial surface of fibula and interosseous membrane

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

What is the insertion (distal attachment) of the Extensor digitorum longus?

A

Middle and distal Phalanges of lateral 4 digits

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

What is the main action of the Extensor digitorum longus?

A

Extends lateral 4 digits and dorsiflexes ankle

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

What is the origin (proximal attachment) of the Extensor Hallucis longus?

A

Middle part of anterior surface of FIBULA and interosseous membrane

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

What is the insertion (distal attachment) of the Extensor Hallucis longus?

A

Dorsal aspect of base of distal phalanx of great TOE (hallux)

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

What is the main action of the Extensor Hallucis longus?

A

Extends great toes and dorsiflexes ankle

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

What is the origin (proximal attachment) of the Fibularis (Peroneus) Tertius?

A

Inferior third of anterior surface of FIBULA and interosseous membrane

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

What is the insertion (distal attachment) of the Fibularis (Peroneus) Tertius?

A

Dorsum of base of 5th metatarsal

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

What is the main action of the Fibularis (Peroneus) Tertius?

A

dorsiflexes ankle and aids in eversion of foot

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

What is the innervation of:

  • Tibialis anterior
  • Extensor digitorum longus
  • Extensor Hallucis longus
  • Fibularis (Peroneus) Tertius
A

Deep Fibular nerve (L4, L5)

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

What is the origin (proximal attachment) of the Fibularis (Peroneus) Longus?

A

Head and superior 2/3 of lateral surface of FIBULA

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

What is the insertion (distal attachment) of the Fibularis (Peroneus) Longus?

A

Base of 1st metatarsal and medial cuneiform

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

What is the origin (proximal attachment) of the Fibularis (Peroneus) Brevis?

A

Inferior 2/3 of lateral surface of FIBULA

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

What is the insertion (distal attachment) of the Fibularis (Peroneus) Brevis ?

A

Dorsal surface of tuberosity on lateral side of base of 5th metatarsal

20
Q

What is the main action of the Fibularis (Peroneus) Longus and the Fibularis (Peroneus) Brevis ?

A

Everts foot and weakly plantarfelxes ankle

21
Q

What is the innervation of the Fibularis (Peroneus) Longus and the Fibularis (Peroneus) Brevis ?

A

Superficial fibular nerve (L5, S1, S2)

22
Q

What are the Superficial Muscles of the Posterior Compartment of the Leg?

A
  • Gastocnemius
  • Soleus
  • Plantaris
23
Q

What is the origin (proximal attachment) of the Gastocnemius?

A
  • Lateral Head: Lateral aspect of LATERAL CONDYLE of FEMUR

- Medial Head: Popliteal surface of FEMUR; superior to medial condyle

24
Q

What is the main action of the Gastocnemius?

A
  • Plantarflexes ankle when knee is extended
  • raises heel during walking
  • flexes leg at knee joint
25
Q

What is the origin (proximal attachment) of the Soleus?

A
  • Posterior aspect of head and superior quarter of posterior surface of FIBULA
  • Soleal line and Middle third of medial border of TIBIA
  • Tendinous arch extending between bony attachments
26
Q

What is the main action of the Soleus?

A
  • Plantarflexes ankle independently of position of knee

- steadies leg on foot

27
Q

What is the origin (proximal attachment) of the Plantaris?

A
  • Inferior end of lateral supracondylar line of FEMUR

- Oblique popliteal ligament

28
Q

What is the main action of the Plantaris?

A

Weakly assists gastrocnemius in Plantarflexing ankle

29
Q

What is the insertion (distal attachment) of the Gastocnemius, Soleus, and the Plantaris?

A

Posterior surface of CALCANEUS via calcaneal tendon

30
Q

What is the innevation of the Gastocnemius, Soleus, and the Plantaris?

A

Tibial nerve (S1, S2)

31
Q

What are the Deep Muscles of the Posterior Compartment of the Leg?

A
  • Popliteus
  • Flexor Hallucis Longus
  • Flexor Digitorum Longus
  • Tibialis Posterior
32
Q

What is the origin (proximal attachment) of the Popliteus?

A

Lateral surface of LATERAL CONDYLE of FEMUR and lateral meniscus

33
Q

What is the insertion (distal attachment) of the Popliteus?

A

Posterior Surface of TIBIA, superior to soleal line

34
Q

What is the innevation of the Popliteus?

A

Tibial nerve (L4, L5, S1)

35
Q

What is the main action of the Popliteus?

A
  • Weakly flexes knee and unlocks it by rotating femur 5 degrees on fixed tibia
  • medially rotates tibia of unplanted limb
36
Q

What is the origin (proximal attachment) of the Flexor Hallucis Longus?

A
  • Inferior 2/3 of posterior surface of fibula

- Inferior part of interosseous membrane

37
Q

What is the insertion (distal attachment) of the Flexor Hallucis Longus?

A

Base of distal phalanx of great TOE (hallux)

38
Q

What is the main action of the Flexor Hallucis Longus?

A
  • Flexes great toe at all joints
  • Weakly plantarflexes ankle
  • supports medial longitudinal arch of foot
39
Q

What is the origin (proximal attachment) of the Flexor Digitorum Longus?

A
  • Medial part of posterior of TIBIA inferior to soleal line, by a broad tendon to fibula
40
Q

What is the insertion (distal attachment) of the Flexor Digitorum Longus?

A

Bases of distal phalanges of lateral 4 digits

41
Q

What is the main action of the Flexor Digitorum Longus?

A
  • Flexes lateral 4 digits
  • plantarflexes ankle
  • supports longitudinal arches of foot
42
Q

What is the innervation of the Flexor Hallucis Longus and the Flexor Digitorum Longus?

A

Tibial nerve (S2, S3)

43
Q

What is the origin (proximal attachment) of the Tibialis Posterior?

A
  • Interosseous membrane
  • Posterior surface of tibia inferior to soleal line
  • Posterior surface of fibula
44
Q

What is the insertion (distal attachment) of the Tibialis Posterior?

A
  • Tuberosity of navicular, cuneiform, cuboid, and sustentaculum tali of calcaneus
  • Bases of 2nd, 3rd, 4th metatarsals
45
Q

What is the innervation of the Tibialis Posterior?

A

Tibial nerve (L4, L5)

46
Q

What is the main action of the Tibialis Posterior?

A
  • plantarflexes ankle

- Inverts foot

Anatomy Exam 3 (5 decks)

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