RETRO ANATOMY

Question 1

superficial posterior muscle group?

Answer 1

soleus
gastroc
plantaris

Question 2

deep posterior muscle group?

Answer 2

popliteus
FHL
FDL
PT

Question 3

soleus origin?

Answer 3

proximal shaft of tibia

tendinous arch

fibular head

proximal shaft of fibula

Question 4

soleus insertion?

Answer 4

muscle fibers fuse distally with gastroc to form achilles

soleus (medial)
gastroc (lateral)

Question 5

gastroc origin?

Answer 5

medial head
posterior medial condyle of the femur
knee joint capsule

lateral head
posterior lateral condyle of the femur
knee joint capsule

Question 6

gastroc insertion?

Answer 6

medial and lateral heads join on their deep surface by an aponeurosis

joins soleus tendon to form achilles tendon

middle 1/3 of posterior calcaneus

Question 7

plantaris origin?

Answer 7

supracondylar ridge above posterior lateral condyle of femur

oblique popliteal ligament

Question 8

plantaris insertion?

Answer 8

medial to achilles tendon insertion

may/not blend with achilles at insertion

Question 9

note about gastroc origin?

Answer 9

above knee, muscle affected by flexion and extension

Question 10

final insertion of gastroc?

Answer 10

middle 1/3 posterior calcaneus

Question 11

plantaris mistaken for?

sidekick for?

Answer 11

sural nerve

gastroc

Question 12

plantaris medial to what?

Answer 12

achilles tendon insertion

Question 13

this muscle is:

three headed
innervated by tibial nerve
sagittal plane motion is plantarflexion

Answer 13

triceps surae

Question 14

noted feature of achilles tendon?

where?

Answer 14

watershed zone
avascular

2-6 cm proximal to insertion