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In the adult the articular surface is about 12 cm 2 (1.9 sq in) and covered by cartilage, which can reach a maximal thickness of 6 mm (0.24 in) in the centre at about 30 years of age. Owing to the great stress on the patellofemoral joint during resisted knee flexion, the articular cartilage of the patella is among the thickest in the human body.
A female baby born in Nagpur, India in June 2016 died after two days. She was the first case of harlequin ichthyosis reported in India. [39] [40] [41] Hannah Betts was born with the condition in 1989 in Great Britain, and died in 2022 at 32 years old. [42] Ng Poh Peng was born in 1991 in Singapore. Doctors had not expected her to live past her ...
Lakshmi Tatma is an Indian girl born in 2005 in a village in Araria district, Bihar, with four arms and four legs.She was actually one of a pair of ischiopagus conjoined twins, one of which was headless because its head had atrophied and chest had not fully developed in the womb, causing the appearance of one child with four arms and four legs.
The coccyx, or tailbone, is the remnant of a lost tail. [19] All mammals have a tail at some point in their development; in humans, it is present for a period of 4 weeks, during stages 14 to 22 of human embryogenesis. [20] This tail is most prominent in human embryos 31–35 days old. [21]
Congenital amputation is birth without a limb or limbs, or without a part of a limb or limbs.. It is known to be caused by blood clots forming in the fetus while in utero (vascular insult) and from amniotic band syndrome: fibrous bands of the amnion that constrict fetal limbs to such an extent that they fail to form or actually fall off due to missing blood supply.
The most babies are born in the summer, with an average of 12.25 births per day. Winter is not so surprisingly the least popular month for new children, with 11.39.
Sirenomelia, also called mermaid syndrome, is a rare congenital deformity in which the legs are fused together, giving the appearance of a mermaid's tail, hence the nickname. Classification [ edit ]
When such premature babies are born, the main causes of mortality are that neither the respiratory system nor the central nervous system are completely differentiated. If given expert postnatal care, some preterm babies weighing less than 500 g (1 lb 2 oz) may survive, and are referred to as extremely low birth weight or immature infants. [21]