14 Questions
Which nerve innervates the muscles in the posterior compartment of the thigh?
Sciatic nerve
What is the arterial supply to the muscles in the posterior compartment of the thigh?
Inferior gluteal artery and perforating branches of the deep femoral artery
How many heads does the biceps femoris muscle have?
Two
Which muscle in the posterior compartment of the thigh is flat and broad?
Semimembranosus
What is an avulsion fracture?
An avulsion fracture occurs when a fragment of bone attached to a ligament or tendon is pulled away from the main mass of the bone.
What is the typical symptom experienced by patients with an avulsion fracture of the ischial tuberosity?
Patients often experience a sudden pain in the posterior thigh, followed by an inability to walk.
Why can an avulsion fracture of the ischial tuberosity be associated with sciatic nerve damage?
The sciatic nerve lies in close location and could be compressed by a displaced fragment of bone.
In cases of avulsion fractures of the ischial tuberosity, which of the following muscles is most likely affected?
Semimembranosus
Why can an avulsion fracture of the ischial tuberosity lead to an inability to walk?
Sciatic nerve involvement
How does an avulsion fracture differ from a regular fracture of a bone?
An avulsion fracture involves a piece of bone being pulled away by a ligament or tendon
Which muscle in the posterior compartment of the thigh is largely tendinous?
Semitendinosus
Which artery supplies the muscles in the posterior compartment of the thigh with blood?
Deep femoral artery
Where can the common tendon of the two heads of the biceps femoris be palpated?
Laterally within the popliteal fossa
Which muscle in the posterior compartment of the thigh is the most lateral?
Biceps femoris
Learn about the muscles in the posterior compartment of the thigh, collectively known as the hamstrings, their attachments, actions, and clinical correlations. Understand their innervation by the sciatic nerve and arterial supply. Dive into the anatomy of the muscles in the posterior thigh.
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