FETAL STRUCTURES Flashcards
The uterine endometrium continues to thicken because of the corpus luteum that isinfluenced by hCG, and instead of sloughing off in a usual menstrual cycle, it becomes the
Deciduas
he deciduas are divided into three parts:
basalis, capsularis, and vera.
the middle layer and it protects the embryo and fetus from infectiousdiseases. This layer appears to function as early as 12 days’ gestation.
Langhans’ layer
The layer disappears on the 20th to 24th week of gestation, however, leaving the fetus more susceptible to infections.
Langhans’ layer
which is a Latin term for “pancake” for its appearance came from the trophoblast tissues and has a lot of functions that benefit the fetus.
Placenta
Nutrients such as glucose, amino acids, vitamins, minerals, fatty acids, and water as well as oxygen are transported through the _____ from the maternal blood supply to the fetus.
The Placenta
The normal amount of amniotic fluid
800 to 1000 mL.
it protects the fetus from trauma or pressure to the mother’s abdomen. It also regulates the temperature for the fetus and aids in muscular development allowing the fetus to move freely
Amniotic Fluid
the transport of oxygen and nutrients from the
placenta to the fetus and the return of waste products from the fetus to the placenta
Umbilical Cord
the cord is made up of a gelatinous mucopolysaccharide called ______ that protects the vein and arteries from trauma.
Wharton’s jelly