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
Responsible for weak plantar flexion and weak knee flexion. It’s almost useless.
PLANTARIS
The fascia of the calf is continuous with the _________ __________.
PLANTAR APONEUROSIS
Gastrocnemius has 2 heads which connect to?
THE MEDIAL AND LATERAL FEMORAL CONDYLES
The triceps surae is made up of which muscles?
GASTROCNEMIUS
+
SOLEUS
CLINICAL RELEVANCE
Why is it not good to work the centre of gastrocnemius?
NERVES COULD HAVE BLOOD CLOTS
