Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Human Biology > Ch 17 Practice > Flashcards

Ch 17 Practice Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

What is the purpose of an episiotomy?

A

To enlarge the vaginal orifice during child birth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The structure that connects the embryo to the placenta is called the ______ ______.

A

Umbilical cord

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What developments occur during the first 5 years of childhood development?

A
  • Development of gross fine motor skills
  • Maturation of senses
  • Development of speech
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Pre-embryonic period

A

Egg is fertilized by sperm; zygote begins to divide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Embryonic period

A

Weeks 2-8; Implantation occurs; nervous system, limb buds, and all other systems are developing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Fetal period

A

Third - ninth month; organ systems complete development

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

During animal development the three embryonic ______ layers develop into the different organs and tissues.

A

Germ

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

List the events of fertilization:

A
  1. Sperm penetrate the corona radiata
  2. Sperm release acrosomal enzymes
  3. Sperm binds to oocyte plasma membrane
  4. Sperm pronucleus forms
  5. Sperm and egg pronuclei enclosed in nuclear envelope
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The study of aging is called ______.

A

Gerontology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

______ is the embedding of the embryo within the lining of the uterus.

A

Implantation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Fertilization occurs when sperm and the egg unite to form the first cell of a new individual, called the ______.

A

Zygote

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

BY the tenth week of embryonic development, the chorion has developed into the ______, which is now secreting hormones that help maintain the pregnancy.

A

The placenta

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The ______ provides the developing embryo/fetus with nourishment and oxygen and takes away its waste.

A

Placenta

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Sperm require lots of energy and this is generated from the mitochondria located within the ______.

A

Middle piece

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Identify the three layers of tissue formed during gastrulation:

A
  • Endoderm (inner layer)
  • Mesoderm (middle layer)
  • Ectoderm (outer layer)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The events of the first week after fertilization encompass ______.

A

Pre-embryonic development

17
Q

The presence of hormones produced by the ______ ______ after implantation prevent menstruation.

A

Corpus Luteum

18
Q

By the tenth week of embryonic development, the chorion has developed into the ______, which is now secreting hormones that help maintain the pregnancy.

A

Placenta

19
Q

During the ______ process of development cells take on a specific structure and function.

A

DIfferentiation

20
Q

The gene on the Y chromosome that induces development of male genetalia is called the ______ gene.

A

SRY

21
Q

Growth

A

During embryonic development, cell division is accompanied by an increase in size of the daughter cells

22
Q

Morphogenesis

A

The shaping of the embryo that is evident when certain cells migrate in relation to other cells

23
Q

Differentiation

A

When cells take on specific structure and function

24
Q

Cleavage

A

The first cell divisions that occur immediately after fertilization

25
Q

Membranous areas in the skull that permit flexibility for passing through the birth canal and rapid growth of the brain during infancy are called ______.

A

Fontanels

26
Q

The middle germ layer of an animal embryo that gives rise to muscle, several internal organs, and connective tissue layers is the:

A

Mesoderm

27
Q

During which stage of the birthing process does the cervix dilate?

A

First stage

28
Q

Child birth is regulated by a ______ feedback mechanism.

A

Positive

29
Q

A pregnancy in which the embryo implants in a location other than the uterus is called a(n) ______ pregnancy.

A

Ectopic

30
Q

Progesterone

A

Relaxation of smooth muscle; reduced uterine motility

31
Q

Estrogen

A

Increased uterine flow; increased RAA activity and protein synthesis by the liver

32
Q

Peptide hormone

A

Increased insulin resistance

Human Biology (30 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions