Module 13 Development

At the end of cleavage, the ball of blastomeres that results is called a _____.

morula

Cleavage creates many ______.

blastomeres

Prolactin is released by the _____

anterior pituitary

The cells surrounding the amiotic cavity are called the ______

amnion

What is the process of fusing the secondary oocyte with a sperm cell?

Fertilization

The exterior cells of a blastocyst are called what?

Trophoblasts

When a pregnant woman's "water breaks," what has occurred?

The amnion has ruptured

When the myometrium spasms in a regular and persistent fashion, this is called ______.

true labor

What is the period of rapid cellular division following fertilization called?

Cleavage

The collection of cells that group together inside of a blastocyst are called ______.

the inner cell mass

Implantation is _____

the process of forming an attachment of the blastocyst to the endometrium

What is the result of one fertilized secondary oocyte separating into two separate balls of cells during cleavage?

Identical Twins

Cleavage is _____

the period of rapid cell division following fertilization

During which stage of paturition does the placenta get ejected form the uterus?

Placental Stage

Which of the following contains oxygenated blood with lots of metabolic nutrients and few metabolic wastes?

Umbilical veins

Umbilical arteries transport blood ______.

away from the fetus

What is the result of two separate secondary oocytes being fertilized by two separate sperm in one female at the same time?

Dizygotic Twins

When a morula becomes hollow it is called a _____.

blastocyst

Which of the following postnatal periods lasts from one month old to one year old?

Infancy

The cells that form the outer shell of a blastocyst are called ______.

trophoblasts

What is the process of childbirth?

Parturition

True labor is _____.

the regular and persistent contractions of the myometrium

Material from the _____ are taken to form the amniotic fluid.

endometrial blood vessels

Prenatal development occurs ______

before birth

Development before birth is called ______.

prenatal

When the myometrium spasms in an irregular or non-persistent fashion, this is called ______.

braxton hicks contractions

At which of the following time points would a delivery be considered full-term?

40 weeks

In the placental stage of paturition, what occurs

The placenta is ejected from the uterus

Development is _____

the process of gradual anatomical adn physiological changes

What stage of postnatal development is found at an age of 9 months?

Infancy

Which of the following postnatal periods lasts from one year old to puberty?

Childhood

How long does human gestation last?

9 months

Which of the following postnatal periods lasts from the end of puberty until death?

Maturity

The amniotic cavity forms by _____.

fluid collecting within the inner cell mass

In the expulsion stage of paturition, what occurs?

the fetus is delivered out of the body

Fluid from the endometrial blood vessels collects within the inner cell mass to form the ______

amiotic cavity

Prolactin is released by the ____

anterior pituitary

The umbilical cord provides ______.

a connection between the fetus and placenta

During which stage of paturition does the cervix expand?

dilation phase

Fertilization is _____.

the process of fusing a secondary oocyte and sperm cell together

The childhood period lasts from _____.

one year old to puberty

Which of the following postnatal periods lasts from birth to one month old?

neonatal