Share this entry

Share this page

placenta

División en sílabas: pla·cen·ta
Pronunciación: /pləˈsen(t)ə
 
/

Definición de placenta en inglés:

sustantivo (plural placentae /-tē/ or placentas)

1A flattened circular organ in the uterus of pregnant eutherian mammals, nourishing and maintaining the fetus through the umbilical cord.

The placenta consists of vascular tissue in which oxygen and nutrients can pass from the mother’s blood into that of the fetus, and waste products can pass in the reverse direction. The placenta is expelled from the uterus at the birth of the fetus, when it is often called the afterbirth. Marsupials and monotremes do not develop placentas

Oraciones de ejemplo
  • Causes of spontaneous abortion may relate to the fetus, the placenta, or the uterus.
  • This transformation is essential to ensure a normal blood supply to the fetus and placenta throughout pregnancy.
  • In each later pregnancy, maternal Rh antibodies can cross the placenta and reach the fetus.
2 Botany (In flowers) part of the ovary wall to which the ovules are attached.
Oraciones de ejemplo
  • The entire placenta with attached ovules was removed via a longitudinal incision in the ovary wall.
  • As the ovary elongates only above the placenta, the ovules appear basal at anthesis.
  • The ovary has axile intruded placentae with around 250-350 ovules.

Origen

late 17th century: from Latin, from Greek plakous, plakount- 'flat cake', based on plax, plak- 'flat plate'.

Definición de placenta en:

Share this entry

Share this page

 

¿Qué te llama la atención de esta palabra o frase?

Los comentarios que no respeten nuestras Normas comunitarias podrían ser moderados o eliminados.

Obtenga más de Oxford Dictionaries

Suscribirse para eliminar anuncios y acceder a los recursos premium

Palabra del día apathetic
Pronunciación: apəˈθɛtɪk
adjective
showing or feeling no interest, enthusiasm, or concern