Labor

Question 1

Name the placental hormones

Answer 1

Human placental lactogen - hPL
Human chorionic thyrotropin - hCT
Oestrogens
Oxytocin 
Relaxin
Prostaglandin

Question 2

Relaxin does what

Answer 2

Causes pelvic ligaments and public symphsis to relax, widen and become more flexible

Question 3

hPL stimulates

Answer 3

Maturation of mothers breasts for lactation

Question 4

hCT ensures

Answer 4

Foetus has enough calcium for bone formation

Question 5

True labor begins when what

Answer 5

Uterine contractions occur at regular intervals

Question 6

Contractions are what

Answer 6

Spreading waves from top of uterus and moving downward

Question 7

Name 5 symptoms of true labor

Answer 7

1) contractions produce strong pain
2) interval between contractions shorten > intensify > positive feedback
3) pain in the back
4) show - discharge of blood containing mucus that accumulates in the cervical canal during labour
5) dilation of cervix

Question 8

False labour symptoms

Answer 8

Weak contractions
Mild pain felt in abdomen
Irregular intervals - Brixton hicks

Question 9

Name 3 stages of true labor

Answer 9

Dilation, expulsion, placental

Question 10

Stage 1, dilation, is the time…..

Answer 10

6-12 hours, from the onset of labor to complete dilation (10cm) of the cervix

Question 11

Symptoms of dilation stage

Answer 11

Regular contractions, amniotic sac ruptures

Question 12

Stage 2, expulsion, is the time

Answer 12

10 mins to serval hours, from complete cervical dilation to delivery of the baby

Question 13

Placental stage 3, is the time

Answer 13

5-30 mins, after delivery until is expelled by powerful uterine contractions

Question 14

What happens to blood vessels during placental stage

Answer 14

Constrict blood vessels torn during delivery and decrease haemorrhage likelihood

Question 15

During true labor, adrenal glands of the foetus secrete what and why

Answer 15

Epinephrine and norepinephrine as protection

Question 16

What happens during the puerperium

Answer 16

6 weeks worth of time in which maternal reproductive organs and physiology return to pre pregnancy state

Question 17

What 3 things happen during puerperium

Answer 17

1) uterus goes involution, reduction is size due to tissue catabolism
2) cervix loses elasticity and regains firmness
3) 2-4 weeks after delivery, discharge called lochia

Question 18

What does lochia consist of

Answer 18

Initially of blood and later serous fluid derived from placental site

Question 19

Onset of labour involves what main two things in terms of hormones

Answer 19

Decrease in effects of progesterone

Increase in effects of placental hormones