The Leg - Superficial Posterior Compartment Flashcards
Which two muscles are the Prime Movers for plantar flexion?
GASTROCNEMIUS
+
SOLEUS
(O) Superior/proximal attachment:
2 HEADS ATTACHING TO THE MEDIAL AND LATERAL FEMORAL CONDYLES
(I) Inferior/distal attachment:
CALCANEUS
Actions:
PLANTAR FLEXION
WEAK KNEE FLEXION
GASTROCNEMIUS
(O) Superior/proximal attachment:
PROXIMAL POSTERIOR FIBULA, SOLEAL LINE (TIBIA), MIDD 1/3RD OF MEDIAL BORDER OF TIBIA
(I) Inferior/distal attachment:
CALCANEUS
Actions:
PLANTAR FLEXION
SOLEUS
(O) Superior/proximal attachment:
DISTAL LATERAL SUPRACONDYLAR RIDGE OF FEMUR
(I) Inferior/distal attachment:
CALCANEUS
Actions:
WEAK PLANTAR FLEXION
WEAK KNEE FLEXION
***ALMOST USELESS
PLANTARIS
Which thick muscle is ONLY a plantar flexor?
SOLEUS
Which muscle has a superior/proximal (O) attachment of 2 heads to the medial and lateral femoral condyles?
GASTROCNEMIUS
Which 3 muscles of the superior posterior leg compartment have an inferior/distal (I) at the calcaneous?
GASTROCNEMIUS \+ SOLEUS \+ PLANTARIS
Which muscle has a superior/proximal (O) attachment at proximal posterior fibula, soleal line (tibia), and middle 1/3rd of medial border of tibia?
SOLEUS
Gastrocnemius is capable of the weak action of?
KNEE FLEXION
Gastrocnemius and soleus are primarily responsible for the action of?
PLANTAR FLEXION
Gastrocnemius is a synergist to which muscle group?
THE HAMSTRINGS
Gastrocnemius and Soleus together are sometimes called the_____ _____?
TRICEPS SURAE
Which muscle connects superiorly and proximally (O) at the distal lateral supracondylar ridge of the femur?
PLANTARIS
The gastrocnemius and soleus muscles share a common distal tendon called the ______ _____?
ACHILLES TENDON
The Achilles’ tendon attaches distally at the?
CALCANEAL TUBEROSITY
