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Chap. 2
hole
8
Other
1st Grade
03/24/2016

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Cards

Term

 

            are produced by the ovaries (        ) and expelled from them during ovulation.

The           of the uterine tubes sweep the           into the           , where it may be fertilized.

Usually only one             is expelled at ovulation.

 

Definition

Oocytes

oogenesis

fimbriae

oocyte

ampulla

oocyte

Term

 

Sperms are produced in the           (         ) and are stored in the            .

Ejaculation of semen results in the deposit of millions of sperms in the vagina.

Several hundred sperms pass through the           and enter the               .

 

Definition

testes

(spermatogenesis)

epididymis

uterus

uterine tubes

Term

 

When an           is contacted by a sperm, it completes the                     division.

As a result, a mature           and a                        are formed.

The nucleus of the mature            constitutes the                       .

 

Definition

oocyte

second meiotic

oocyte

second polar body

oocyte

pronucleus

Term

 

After the sperm enters the oocyte, the            of the sperm separates from the tail and enlarges to become the                           .

             is complete when the male and female pronuclei unite and the maternal and paternal chromosomes intermingle during             of the               division of the            .

 

Definition

head

male pronucleus

fertilization

metaphase

first mitotic

zygote

 

* pro-phase  ->  meta-phase  ->  ana-phase  ->  telo-phase.

 

Term

 

As it passes along the uterine tube toward the uterus, the zygote undergoes cleavage (a series of            cell divisions) into a number of smaller cells, or            .

Approximately     days after fertilization, a ball of 12 or more             (a            ) enters the uterus.

 

Definition

mitotic

blastomeres

3

blastomeres

(morula)

Term

 

A        forms in the morula, converting it into a         consisting of the          , a                , and the          .

The            encloses the           and                 and later forms extraembryonic structures and the embryonic part of the          .

 

Definition

cavity

blastocyst

embryoblast

blastocystic cavity

trophoblast

 

trophoblast

embryoblast

blastocystic cavity

placenta

 

 

[image]

Term

 

At 4 to 5 days after fertilizations, the            is shed and the trophoblast adjacent to the           attaches to the                  .

 

Definition

zona pellucida

embryoblast

endometrial epithelium

Term

 

The trophoblast at the embryonic pole differentiates into two layers, an outer              and an inner              .

The                   invades the endometrial epithelium and underlying                         .

Concurrently, a cuboidal layer of            forms on the deep surface of the embryoblast.

By the end of the first week, the            is superficially implanted in the            .

 

Definition

syncytiotrophoblast

cytotrophoblast

syncytiotrophoblast

connective tissue

hypoblast

blastocyst

endometrium

 

 

[image]

 

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