The couplet is a popular poetic device. A couplet contains two lines of verse that usually rhyme, though this isn't required. The lines can be any length and use any rhythm. Sometimes the two lines are the same length, and sometimes one is longer than the other. Couplets are often used to end a stanza, but they can also constitute the whole poem.
It travels through the carpal tunnel which is the point connecting the palm and forearm, and goes into the thumb. This muscle is located between the two muscles which facilitate flexion of the thumb, namely the Flexor Pollicis Brevis and the Abductor Pollicis. Flexor Pollicis Longus terminates at the tip of the thumb.
What is flexor hallucis longus tendonitis? The flexor hallucis longus muscle originates from the back of the fibula (outer lower leg bone), it then travels down along the inside of the lower leg and ankle where it inserts into the base of the big toe via the flexor hallucis longus tendon (figure 1). The flexor hallucis longus muscle is primarily responsible for bending the big toe.