Tag: human foetus

The pancreas is an important alveolar gland with endo- and exocrine functions. It consists of fourparts: the head, neck, body, and tail of the pancreas [5]. Embryologically, the pancreas develops from twoseparate buds: the dorsal and ventral buds. The dorsal and ventral buds fuse in the seventh week ofgestation...

In the human brain the first ependymal buds of the choroid plexuses appear, at the telencephalic level, between the sixth and eighth weeks of embryonic development. After this period the necessary nutrients are supplied to the developing brain parenchyma, at this time by diffusion...

To revisit foetal development of the deep flexor tendons of the hand and foot, we examined the paraffin-embedded histology of 20 mid-term foetuses at 8–15 weeks of estimated gestational age (35–118 mm crown-rump length or CRL).

In human mid-term foetuses, it is well known that the thigh is highly flexed at the hip joint (Fig. 1). This seems to lengthen the course of the sciatic nerve from the sacrum to the knee along the extended (i.e. posterior or inferior) side of the hip. Despite this suggested lengthening of the nerve course in foetuses, many dissection studies have indicated the presence of an artery accompanying the adult sciatic nerve (arteria comitans nervi ischiadici)...

According to a famous textbook by Hollinshead [9], ligamentum inguinale internum mediale [8] or the ligament of Henle is a thickening in the lowermost part of the lateral border of the rectus sheath. The textbook also states about a confusion in Nomina Anatomica between the ligament of Henle and the conjoint tendon (conjoined tendon; Tendo conjunctivus; a common aponeurosis for insertion of the inferomedial end of the obliquus internus and transversus abdominis muscles): actually, there is no description on the ligament in Gray’s anatomy and, instead, the conjoint tendon is considered to join the rectus sheath [17, 19]...