Exam 4 Muscles of the Superficial posterior leg Flashcards Preview

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Flashcards in Exam 4 Muscles of the Superficial posterior leg Deck (14):
1

Muscles of the Superficial posterior leg include:

Gastrocnemius
Soleus
plantaris

2

Together the gastrocnemius & the soleus make up the:

triceps sure (calf muscle)

3

The tendons of the 3 muscles fuse together to form:

Achilles Tendon or Tendon calcaneus

4

ALL posterior leg muscles are supplied by the:

Tibial Nerve

5

Origin of the gastrocnemius:

Lateral & medial epicondyles of the femur

6

Insertion of the gastrocnemius:

Tuberosity of the calcaneus

7

Sesamoid bone which is found imbedded in the lateral head of the origin of the gastrocnemius & articulates w/ the lateral condyle of the femur

Fabella

8

Origin of the soleus:

Soleal line of the tibia
head & shaft of the fibula

9

Insertion of the soleus:

Tuberosity of the calcaneus

10

Actions of both gastrocnemius & soleus

1. Plantar flex the foot
2. Inversion of the foot
3. Stabilizes the ankle joint

11

- Small variable muscle which is missing in about 5% of the pop.
- Found b/t th elateral head of the gastrocnemius & the soleus
- Muscle belly is short & its tendon is long & descends along the medial border of the tendon calcaneus

Plantaris

12

Origin of plantars:

Lateral supracondylar ridge of the femur

13

Insertion of the plantars:

Tuberosity of the calcaneus

14

Actions of the plantars:

1. Plantar flex of the foot
2. Inversion of the foot