PNR 203 EXAM 1 2025 QUESTIONS AND
ANSWERS
Increases muscle mass and strength
Promotes growth of long bones
Increases basal metabolic rate
Enhances production of RBCs
Enlargement of vocal cords
Affects distribution of body hair - ANS Functions of testosterone
Increase in the size of the penis and testes, growth spurt, pubic & facial hair, and deepening of
voice - ANS Signs of puberty in males
Breast development, menstrual cycle, growth spurt, and pubic & axillary (armpit) hair -
ANS Signs of puberty in females
2-2 1/2 years after puberty, usually around 11-15 years of age - ANS When do menstrual
cycles start?
Every 28 days, plus or minus 5-10 days; the flow itself lasts from 2-5 days - ANS What is the
average amount of days per menstrual cycle?
14 days before the onset of the next menstrual cycle - ANS When does ovulation occur?
At beginning of reproductive cycle - ANS When is the endometrium thinnest?
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, At the end of the reproductive cycle - ANS When is the endometrium thickest?
Regular cycles are established within 6 months to 2 years of the menarche - ANS How does a
menstrual cycle become regular?
Forms the fetal side of the placenta - ANS What is the function of chorion?
Forms amniotic sac and protects the embryo - ANS What is the function of amnion?
Produces RBCs - ANS What is the function of yolk sac?
46 - ANS How many chromosomes are in a body cell?
23 - ANS How many chromosomes are in a reproductive cell?
Female - ANS What gender is a "X" chromosome?
Male - ANS What gender is a "Y" chromosome?
Week 3 - ANS What week does the neural tube form?
Week 6 - ANS What week does the heart form all 4 chambers?
Week 25 - ANS What week do the lungs begin to secrete surfactant?
Week 10 - ANS What week do genitalia form?
1 vein, 2 arteries - ANS How many veins and arteries are in the placenta?
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ANSWERS
Increases muscle mass and strength
Promotes growth of long bones
Increases basal metabolic rate
Enhances production of RBCs
Enlargement of vocal cords
Affects distribution of body hair - ANS Functions of testosterone
Increase in the size of the penis and testes, growth spurt, pubic & facial hair, and deepening of
voice - ANS Signs of puberty in males
Breast development, menstrual cycle, growth spurt, and pubic & axillary (armpit) hair -
ANS Signs of puberty in females
2-2 1/2 years after puberty, usually around 11-15 years of age - ANS When do menstrual
cycles start?
Every 28 days, plus or minus 5-10 days; the flow itself lasts from 2-5 days - ANS What is the
average amount of days per menstrual cycle?
14 days before the onset of the next menstrual cycle - ANS When does ovulation occur?
At beginning of reproductive cycle - ANS When is the endometrium thinnest?
COPYRIGHT © 2025 FYNDLAY ALL RIGHTS RESERVED 1
, At the end of the reproductive cycle - ANS When is the endometrium thickest?
Regular cycles are established within 6 months to 2 years of the menarche - ANS How does a
menstrual cycle become regular?
Forms the fetal side of the placenta - ANS What is the function of chorion?
Forms amniotic sac and protects the embryo - ANS What is the function of amnion?
Produces RBCs - ANS What is the function of yolk sac?
46 - ANS How many chromosomes are in a body cell?
23 - ANS How many chromosomes are in a reproductive cell?
Female - ANS What gender is a "X" chromosome?
Male - ANS What gender is a "Y" chromosome?
Week 3 - ANS What week does the neural tube form?
Week 6 - ANS What week does the heart form all 4 chambers?
Week 25 - ANS What week do the lungs begin to secrete surfactant?
Week 10 - ANS What week do genitalia form?
1 vein, 2 arteries - ANS How many veins and arteries are in the placenta?
COPYRIGHT © 2025 FYNDLAY ALL RIGHTS RESERVED 2
