Anatomy Chapter 23 Test Pregnancy, Growth, And Development

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| By Libbyrose1995

Libbyrose1995

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Quizzes Created: 11 | Total Attempts: 12,151

Questions: 7 | Attempts: 784 | Updated: Mar 22, 2023

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Pregnancy-Transport of Sex Cells, Fertilization; Prenantal Period- Period of Cleavage, Hormonal Changes During Pregnancy, Other Changes During Pregnancy, Embryonic Stage, Fetal Stage, Fetal Blood and Circulation, Birth Process, Milk Production and Secretion; Postnatal Period- Neonatal Period, Infancy, Childhood, Adolescence, Adulthood, Senescence, The End of Life: Aging- Passive Aging, Active Aging, The Human Life Span

Questions and Answers

1.

What happens in the uterine tube?
- A.
  
  Pregnancy
- B.
  
  Fertilization
- C.
  
  Creationg of the secondary oocyte
- D.
  
  Sexual intercourse
Correct Answer
B. Fertilization

Explanation
Fertilization is the process in which a sperm cell merges with an egg cell, resulting in the formation of a zygote. In the uterine tube, also known as the fallopian tube, fertilization typically occurs. After sexual intercourse, sperm cells travel through the uterine tube towards the egg cell, which is released from the ovary. If a sperm cell successfully reaches and fertilizes the egg cell in the uterine tube, pregnancy can occur. Therefore, the correct answer is fertilization.

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2.

What attaches to the uterine lining?
- A.
  
  The blastocyst
- B.
  
  Progesterone
- C.
  
  The secondary oocyte
- D.
  
  The zona pellucida
Correct Answer
A. The blastocyst

Explanation
The blastocyst attaches to the uterine lining during implantation. Implantation is a crucial step in pregnancy where the blastocyst, which is a structure formed after fertilization, embeds itself into the uterine wall. This attachment allows the blastocyst to receive nutrients and oxygen from the mother's blood supply, facilitating further development and growth.

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3.

What stimulates contractions of the uterus after birth?
- A.
  
  HCG
- B.
  
  Estrogen
- C.
  
  Progesterone
- D.
  
  Oxytocin
Correct Answer
D. Oxytocin

Explanation
Oxytocin stimulates contractions of the uterus after birth. Oxytocin is a hormone produced by the pituitary gland and it plays a crucial role in the childbirth process. It stimulates the muscles of the uterus to contract, helping to expel the placenta and reduce bleeding after delivery. Oxytocin is also responsible for the bonding and attachment between mother and baby, as it is released during breastfeeding and promotes the let-down reflex.

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4.

What are the stages of prenatal development? (in chronological order)
- A.
  
  Fetal, embryonic, preembryonic
- B.
  
  Preembyronic, fetal, embryonic
- C.
  
  Preembyronic, embryonic, fetal
- D.
  
  Embryonic, preembryonic, fetal
Correct Answer
C. Preembyronic, embryonic, fetal

Explanation
The correct answer is "preembyronic, embryonic, fetal." Prenatal development begins with the preembyronic stage, which lasts from conception to about two weeks. During this stage, the zygote undergoes rapid cell division and begins to implant into the uterine wall. The embryonic stage follows, lasting from about two to eight weeks. During this stage, the major organs and body systems begin to form. Finally, the fetal stage occurs from about eight weeks until birth. During this stage, the organs continue to develop and mature, and the fetus grows in size and complexity.

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5.

Describe a newborn's breath after birth
6.

Why are the 1st 8 weeks of development most critical during pregnancy?
7.

What is the placenta, and what does it do?

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Current Version
Mar 22, 2023

Quiz Edited by
ProProfs Editorial Team
Apr 18, 2012

Quiz Created by
Libbyrose1995

Anatomy Chapter 23 Test Pregnancy, Growth, And Development

What happens in the uterine tube?

What attaches to the uterine lining?

What stimulates contractions of the uterus after birth?

What are the stages of prenatal development? (in chronological order)

Describe a newborn's breath after birth

Why are the 1st 8 weeks of development most critical during pregnancy?

What is the placenta, and what does it do?