Question: Which Of The Following Occurs 9-12 Weeks Into Pregnancy, During The Fetal Period?

At what week of pregnancy does the fetal period begin quizlet?

Fetal Period ( weeks 9-28 ) Flashcards | Quizlet.

Which of the following is not one of the primary germ layers which of the following is not one of the primary germ layers?

Which of the following is NOT a major germ layer formed during gastrulation? Explanation: The correct answer is cytoderm. There are three major germ layers formed during gastrulation: the ectoderm, mesoderm, and endoderm.

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Which body system of a pregnant woman undergoes most dramatic physiological changes during pregnancy?

Which body system of a pregnant woman undergoes the most dramatic physiological changes during pregnancy? A pregnant woman urinates more often than usual because the uterus compresses the bladder, and she must also dispose of fetal metabolic wastes.

What is the name for the period of time that extends from the last menstrual period until birth which is approximately 280 days what is the name for the period of time that extends from the last menstrual period until birth which is approximately 280 days?

The estimated delivery date, also called the estimated due date or EDD, is calculated as 40 weeks or 280 days from the first day of the last menstrual period (LMP). Only 4 percent (1 in 20) women will deliver on their due date.

What month does the fetal period start?

The first two weeks after conception are known as the germinal stage, the third through the eighth week is known as the embryonic period, and the time from the ninth week until birth is known as the fetal period.

What is the shortest period of prenatal development?

The germinal stage of development is the first and shortest of the stages of the human lifespan.

What are germinal layers?

A germ layer is a group of cells in an embryo that interact with each other as the embryo develops and contribute to the formation of all organs and tissues. All animals, except perhaps sponges, form two or three germ layers. The germ layers develop early in embryonic life, through the process of gastrulation.

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At what period of fetal development are all body systems present in at least rudimentary form?

Now take a human embryo in the uterus. At the age of approximately eight weeks it has all organ systems present in at least rudimentary form, including a brain with a fully differentiated cerebral cortex.

What structures develop from the ectoderm?

The tissues derived from the ectoderm are: some epithelial tissue (epidermis or outer layer of the skin, the lining for all hollow organs which have cavities open to a surface covered by epidermis), modified epidermal tissue (fingernails and toenails, hair, glands of the skin), all nerve tissue, salivary glands, and

What are the normal physiological changes during pregnancy?

There is an increase in glomerular filtration rate associated with an increase in creatinine clearance, protein, albumin excretion, and urinary glucose excretion. There is also an increase in sodium retention from the renal tube so oedema and water retention is a common sign in pregnant women.

What are the anatomical and physiological changes of a pregnant woman?

As the fetus grows and develops, several anatomical changes must occur to the female body to accommodate the growing fetus, including placental development, weight gain, abdominal extension, breast enlargement, glandular development, and posture changes. The abdomen drops and fetal movement can become quite strong.

How does pregnancy affect the mother’s respiration?

As a normal part of pregnancy, your breathing may be affected by the increase in the hormone progesterone, which causes you to breathe in more deeply. This might make you feel as if you’re working harder to get air.

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Which of the following occurs 9 12 weeks into pregnancy during the fetal period?

Which of the following occurs 9-12 weeks into pregnancy, during the fetal period? Blood cell production in the bone marrow.

What is the name for the time between the last menstrual period until birth?

Gestational age is the common term used during pregnancy to describe how far along the pregnancy is. It is measured in weeks, from the first day of the woman’s last menstrual cycle to the current date. A normal pregnancy can range from 38 to 42 weeks. Infants born before 37 weeks are considered premature.

What part of the female reproductive system is shed during menstruation?

Menstruation is one part of a woman’s cycle when the lining of the uterus (endometrium) is shed. This occurs throughout a woman’s reproductive life. With each monthly cycle, the endometrium prepares itself to nourish a fetus. Increased levels of estrogen and progesterone help thicken its walls.

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