The occipital lymph nodes are located on the back of the head close to the margin of the trapezius and resting on the insertion of the semispinalis capitis.
Their afferent vessels drain the occipital region of the scalp, while their efferents pass to the superior deep cervical glands.
In human anatomy, a hamstring (/ˈhæmstrɪŋ/) is any one of the three posterior thigh muscles in between the hip and the knee (from medial to lateral: semimembranosus , semitendinosus and biceps femoris ). The hamstrings are susceptible to injury. In quadrupeds, the hamstring is the single large tendon found behind the knee or comparable area.