A&P 2 FINAL EXAM 2025/2026
QUESTIONS AND ANSWERS 100% PASS
Put this positive feedback loop in the correct order, starting with the stretching of the cervix -
ANS 1. Cervix is stretched
2. Reflex causes a stronger contraction
3. Fetus moves downward
4. Fetal head presses harder against cervix
Select all that are correct regarding the stages of labor. - ANS expulsion: begins when the
fetal head enters the birth canal and ends with birth of the newborn
dilation: the stage in which the cervix effaces and dilates to 10 cm in diameter; typically the
longest stage of labor taking 6-12 hours on average
afterbirth: delivery of the placenta and associated membranes
Select all that are correct regarding the size and relative cell number of the zygote, morula, and
blastocyst. - ANS All
(the zygote is the same overall size as the morula and blastocyst
the blastocyst contains 70-100 cells
the zygote contains a single cell
the morula contains 16 cells)
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,Place the following events of fertilization in order. - ANS 1.capacitated sperm burrow
through the cells of the corona radiata surrounding the secondary oocyte
2.after contact with the zona pellucida the sperm bind to receptors there
3. the acrosomal reaction causes the acrosome of the sperm to releases its stored digestive
enzymes
4. a single sperm makes contact with sperm-binding receptors on the oocyte's plasma
membrane
5. after reactions to prevent polyspermy the sperm pronucleus enters the eggs that then
finishes meiosis
6. the pronuclei come closer together, their nuclear envelopes disintegrate, and the genetic
material mixes forming a zygote
Select those that are correct about how human blood type is genetically determined. -
ANS All
(People who have alleles for both enzymes (IA and IB) produce both surface antigens A and B,
so are blood type AB.
People are blood type B if they express an enzyme for the production of surface antigen B. This
allele is designated IB.
The third allele (i) produces a nonfunctional enzyme. People who have two i alleles have type O
blood.
People are blood type A if they have an allele for an enzyme that facilitates the production of
surface antigen A on their erythrocytes. This allele is designated IA.
People have type B blood can have either the IB IB genotype or IB i genotype. People have type
A blood can have either the IA IA genotype or IA i genotype.)
Which is a major event that occurs during the fetal stage of development? (select all that are
correct) - ANS All
(during weeks 9-12 the brain continues expansion, the body elongates, and ossification
continues
during weeks 21-30 there is rapid weight gain, bone marrow takes over erythrocyte synthesis,
axons of the spinal cord begin myelination and lungs begin producing surfactant
during weeks 9-12 the tube-shaped heart folds and differentiates into a four chamber heart
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, during the fetal stage structures and functions of the immature organ systems formed during
the embryonic period fully develop)
Which are correct regarding the types of follicles in the ovary? - ANS small primordial follicles
are present in newborn females
immature growing follicles are called primary follicles
follicles in which the antrum is large and fully formed are tertiary follicles
Select all that are normal functions of the uterine tubes. - ANS c)Transport the oocyte to the
uterus
d)Site for fertilization
Select all of the following that are correct main steps of spermatogenesis and spermiogenesis. -
ANS spermiogenesis transforms spermatids into spermatozoa, or fully formed sperm
spermatogonia undergo mitosis to produce a primary spermatocyte
spermatogenesis begins with mitosis of the diploid spermatogonia
List the anatomical parts in sequence from milk production to ejection. - ANS 1.groups of
milk-secreting cells are found in clusters called alveoli
2.alveoli make up a glandular lobe
3. Lactiferous Sinus
4. Lactiferous Ducts
5. Nipple
Select all of the following that correctly identify how the ovarian cycle and the uterine cycle are
interrelated. - ANS b)
Follicle-stimulating hormone stimulates the development of several follicles in the ovaries and
these ovarian follicles produce estrogen that stimulates the growth of the endometrium of the
uterus.
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QUESTIONS AND ANSWERS 100% PASS
Put this positive feedback loop in the correct order, starting with the stretching of the cervix -
ANS 1. Cervix is stretched
2. Reflex causes a stronger contraction
3. Fetus moves downward
4. Fetal head presses harder against cervix
Select all that are correct regarding the stages of labor. - ANS expulsion: begins when the
fetal head enters the birth canal and ends with birth of the newborn
dilation: the stage in which the cervix effaces and dilates to 10 cm in diameter; typically the
longest stage of labor taking 6-12 hours on average
afterbirth: delivery of the placenta and associated membranes
Select all that are correct regarding the size and relative cell number of the zygote, morula, and
blastocyst. - ANS All
(the zygote is the same overall size as the morula and blastocyst
the blastocyst contains 70-100 cells
the zygote contains a single cell
the morula contains 16 cells)
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,Place the following events of fertilization in order. - ANS 1.capacitated sperm burrow
through the cells of the corona radiata surrounding the secondary oocyte
2.after contact with the zona pellucida the sperm bind to receptors there
3. the acrosomal reaction causes the acrosome of the sperm to releases its stored digestive
enzymes
4. a single sperm makes contact with sperm-binding receptors on the oocyte's plasma
membrane
5. after reactions to prevent polyspermy the sperm pronucleus enters the eggs that then
finishes meiosis
6. the pronuclei come closer together, their nuclear envelopes disintegrate, and the genetic
material mixes forming a zygote
Select those that are correct about how human blood type is genetically determined. -
ANS All
(People who have alleles for both enzymes (IA and IB) produce both surface antigens A and B,
so are blood type AB.
People are blood type B if they express an enzyme for the production of surface antigen B. This
allele is designated IB.
The third allele (i) produces a nonfunctional enzyme. People who have two i alleles have type O
blood.
People are blood type A if they have an allele for an enzyme that facilitates the production of
surface antigen A on their erythrocytes. This allele is designated IA.
People have type B blood can have either the IB IB genotype or IB i genotype. People have type
A blood can have either the IA IA genotype or IA i genotype.)
Which is a major event that occurs during the fetal stage of development? (select all that are
correct) - ANS All
(during weeks 9-12 the brain continues expansion, the body elongates, and ossification
continues
during weeks 21-30 there is rapid weight gain, bone marrow takes over erythrocyte synthesis,
axons of the spinal cord begin myelination and lungs begin producing surfactant
during weeks 9-12 the tube-shaped heart folds and differentiates into a four chamber heart
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, during the fetal stage structures and functions of the immature organ systems formed during
the embryonic period fully develop)
Which are correct regarding the types of follicles in the ovary? - ANS small primordial follicles
are present in newborn females
immature growing follicles are called primary follicles
follicles in which the antrum is large and fully formed are tertiary follicles
Select all that are normal functions of the uterine tubes. - ANS c)Transport the oocyte to the
uterus
d)Site for fertilization
Select all of the following that are correct main steps of spermatogenesis and spermiogenesis. -
ANS spermiogenesis transforms spermatids into spermatozoa, or fully formed sperm
spermatogonia undergo mitosis to produce a primary spermatocyte
spermatogenesis begins with mitosis of the diploid spermatogonia
List the anatomical parts in sequence from milk production to ejection. - ANS 1.groups of
milk-secreting cells are found in clusters called alveoli
2.alveoli make up a glandular lobe
3. Lactiferous Sinus
4. Lactiferous Ducts
5. Nipple
Select all of the following that correctly identify how the ovarian cycle and the uterine cycle are
interrelated. - ANS b)
Follicle-stimulating hormone stimulates the development of several follicles in the ovaries and
these ovarian follicles produce estrogen that stimulates the growth of the endometrium of the
uterus.
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
