Conception and Fetal Development Flashcards
the study of male (XY) reproductive organs
ANDROLOGY
TESTES- LEYDIG CELLS (interstitial cells)- produce
__________________ and tubule that produce ________________
testosterone; spermatozoa
SEMEN – CONTAINS ____________________________________its alkaline fluid comes from
SUGAR AND PROTEIN; prostate gland (60%), seminal
vesicles (30%), epididymis (5%), bulbourethral glands
(5%)
ABSENCE OF SPERM
ASPERMIA
SPERM FEWER THAN 20 MILLION PER ML
OLIGOSPERMIA
is a surgical procedure performed as a method of birth control in men. It involves cutting the tubes vas deferens that carry sperm from the testicles.
VASECTOMY
chromosomal female reproductive cycle
Menstrual cycle
episodic uterine bleeding in response to cyclic hormonal changes
Menstrual cycle
- 5-14 days
- Ovary begins to produce estrogen (FSH)
Proliferative Phase
Luteal phase
Secretory Phase
Formation of progesterone in corpus luteum (LH)
Secretory Phase
progesterone level regress
Ischemic Phase
Corpus luteum starts to regress
Ischemic Phase
No fertilization occurred
Ischemic Phase
microscopic, atrophied and unfertilized ovum
Menstrual Phase
mixture of blood, mucin, endometrial tissue
Menstrual Phase
first menstruation
MENARCH
DURATION of menstrual flow
2-9 days
MENARCH – first menstruation, onset ________________
9-17 years old
INTERVAL – average __ days, ranges _______ days
28; 23-35
IRON LOSS
11mg
COLOR
dark red
ODOR
similar to marigolds
It moves the uterus → blastocyst (attaches to endometrium called
IMPLANTATION
The release of the estrogen and progesterone) thickens the endometrium, while the blastocyst grows and develops into a
baby
OVULATION TO FERTILIZATION
OVUM
FERTILIZATION TO IMPLANTATION
ZYGOTE
IMPLANTATION TO 5-8 WEEKS
EMBRYO
5-8 WEEKS UNTIL TERM (40 WEEKS)
FETUS/ FETAL
24 WEEKS, 500-600g
VIABLE AGE
END OF 4TH WEEK
-weight:
400 mg
-spinal cord forms
END OF 4TH WEEK
-1/3 of the head
END OF 4TH WEEK
length 1nch, wt. 2g
END OF 8TH WEEK
Organogenesis is complete
END OF 8TH WEEK
heart with beats
END OF 8TH WEEK
Gestational sac in sonogram
END OF 8TH WEEK
-length 7-8inch, wt. 45g
END OF 12TH WEEK
-the presence of nail beds
END OF 12TH WEEK
Babinski reflex + (positive)
END OF 12TH WEEK
Sex is distinguishable
END OF 12TH WEEK
-length 10-17inch, wt.55g-120g
END OF 16TH WEEK
FHB is audible using the stethoscope
END OF 16TH WEEK
lanugo is well-formed, functional kidney and liver
END OF 16TH WEEK
Sex is determined by ultrasound
END OF 16TH WEEK
-hair, vernix caseosa
END OF 20TH WEEK
meconium at the upper GI tract
END OF 20TH WEEK
fetal movement
END OF 20TH WEEK
brown fat
END OF 20TH WEEK
-550g, viable
END OF 24TH WEEK
Meconium at the rectum
END OF 24TH WEEK
lung surfactant begins
END OF 24TH WEEK
Hearing can be demonstrated
END OF 24TH WEEK
-1200g
END OF 28TH WEEK
Descend of testes
END OF 28TH WEEK
Blood vessels of retina are formed but thin
END OF 28TH WEEK
little old man appearance
END OF 32ND WEEK
active Moro reflex
END OF 32ND WEEK
Fetus kicks actively
END OF 36TH WEEK
1 or 2 creases on the sole of the foot
END OF 36TH WEEK
Lanugo diminishes
END OF 36TH WEEK
-length 48-52cm, wt. 3000g
END OF 40TH WEEK
creases on the sole covers at least 2/3
END OF 40TH WEEK
Calculating EDD using Naegele’s rule
LMP Add (+) 7 days
Subtract (-) 3 months
Plus (+) one year
