Foetal growth and post-natal life Flashcards
In the fetus the ductus arteriosus carries blood from the:
pulmonary artery to the pulmonary vein
liver to the inferior vena cava
right ventricle to the left ventricle
the pulmonary trunk to the aorta
the umbilical artery to the umbilical vein
the pulmonary trunk to the aorta
Which of the following changes occur in a neonates cardiovascular system after birth?
blood clots in the umbilical vein
dilatation of the pulmonary vessels
obliteration of the ductus arteriosus
all of these
all of these
The umbilical vein carries:
waste products to the placenta
oxygen and food to the fetus
oxygen and food to the placenta
oxygen and waste product to the fetus
none of the above
oxygen and food to the fetus
During birth, when the baby’s head is first seen it usually faces the mother’s thigh.
True or false?
False
During birth, stimulation of the cervix causes oxytocin release.
True or false?
True
During birth, oxytocin stimulates the release of locally acting thromboxanes, causing contraction.
True or false?
False
Progesterone inhibits uterine contraction.
True or false?
True
Producion of breast milk is via:
prolactin
oestrogen
oxytocin
prolactin and oxytocin
progesterone
prolactin
Oxytocin stimulates milk let down; prolactin stimulates milk production
Suckling of a mothers breast by the infant causes:
prolactin release only
oxytocin release only
oxyctocin and prolactin release
none of the above, the reflex is completely neural
oxyctocin and prolactin release
Colostrum has a lower fat content than normal milk.
True or false?
True
The suckling reflex increases the release of dopamine from the arcuate nucleus.
True or false?
False
Prolactin inhibits FSH and LH release.
True or false?
True
