Which tunic is labeled “D”?

What is the specific name of the muscle labeled “C”?  It is attached to the “strings”.

Name the specific structure labeled “B”

Name the vessel labeled “B”.

Name the vessel labeled “H”.

What type of blood vessel is labeled “B”?

Name this enlarged lymphatic vessel labeled “5”

Which muscle(s) forms part of the rotator cuff?

What type of synovial joint is found at the thumb?

An 18-year-old ice hockey player presents to the emergency department after a skate blade lacerated his posterior thigh. Physical examination reveals that he is unable to flex his posterior thigh muscles at the knee joint. Based on these symptoms, which of the following muscles may have been injured?