A&P 2 CHAPTER 28 - UTA 2458 DR.
HENRY EXAM QUESTIONS AND
ANSWERS GRADED A+ 2026
Stages of Development
zygote > pre-embryological > _________________ > _______________ - ANS embryo, fetus
Development is the modification of ________________ features. - ANS physical
Differentiation is the creation of different ____________. - ANS cells
Gastrulation is the development of the 3 _________ __________. - ANS germ layers
Fertilization of an ovum happens in the _____________ of the ________________
_______________. - ANS ampulla, fallopian (uterine) tubes
Sperm releases ___________________ and _______________, hormones that penetrate the
corona radiata of the ________. - ANS hyaluronidase, acrosin, ovum
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
, Amphimixis is the fusion of a _____________ and an ____________ to form a
_______________. - ANS sperm, ovum, zygote
Fast Block
The oocyte membrane ___________________ to prevent polyspermy. - ANS depolarizes
Slow Block
The ___________ ________________ hardens to prevent polyspermy. - ANS zona pellucida
Dizygotic means ______________ twins. They come from 2 _______________ and separate
_____________. - ANS fraternal, oocytes, sperm
Monozygotic means ________________ twins. They come from 1 ____________ and 1
_______________. - ANS identical, oocyte, sperm
During the first week of development, the clump of cells is called a ____________________. -
ANS zygote
A morula is a clump of cells that implants in the _________________. This will form into a
_______________. - ANS uterus, blastocyte
The blastocyte as two parts:
1. Embryoblast: inner, will form into the _______________
2. Trophoblast: outer, will form into the __________________ - ANS embryo, placenta
During implantation, the endometrium becomes highly _______________. -
ANS vascularized
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
HENRY EXAM QUESTIONS AND
ANSWERS GRADED A+ 2026
Stages of Development
zygote > pre-embryological > _________________ > _______________ - ANS embryo, fetus
Development is the modification of ________________ features. - ANS physical
Differentiation is the creation of different ____________. - ANS cells
Gastrulation is the development of the 3 _________ __________. - ANS germ layers
Fertilization of an ovum happens in the _____________ of the ________________
_______________. - ANS ampulla, fallopian (uterine) tubes
Sperm releases ___________________ and _______________, hormones that penetrate the
corona radiata of the ________. - ANS hyaluronidase, acrosin, ovum
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
, Amphimixis is the fusion of a _____________ and an ____________ to form a
_______________. - ANS sperm, ovum, zygote
Fast Block
The oocyte membrane ___________________ to prevent polyspermy. - ANS depolarizes
Slow Block
The ___________ ________________ hardens to prevent polyspermy. - ANS zona pellucida
Dizygotic means ______________ twins. They come from 2 _______________ and separate
_____________. - ANS fraternal, oocytes, sperm
Monozygotic means ________________ twins. They come from 1 ____________ and 1
_______________. - ANS identical, oocyte, sperm
During the first week of development, the clump of cells is called a ____________________. -
ANS zygote
A morula is a clump of cells that implants in the _________________. This will form into a
_______________. - ANS uterus, blastocyte
The blastocyte as two parts:
1. Embryoblast: inner, will form into the _______________
2. Trophoblast: outer, will form into the __________________ - ANS embryo, placenta
During implantation, the endometrium becomes highly _______________. -
ANS vascularized
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
