MFAC1521 Lecture Notes - Lecture 51: Descending Aorta, Alveolar Cells, Ascending Aorta

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lavenderrhinoceros574

9 Jul 2018

School

UNSW, UNSW Sydney

Department

Medicine

Course

MFAC1521

Professor

Course Convenor: Nicole Marden

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Document Summary

Key points: growth, placenta, fetal circulation, amniotic fluid. *indirect way to measure birthweight/growth = fundal height (distance from pubic bone to the top of the uterus in cm) *data regarding morality ratio from cardiovascular disease and its association with birthweight. Genetics: gender (males tend to be heavier, race, chromosomal abnormalities (e. g. trisomy 21, turner"s syndrome, single gene disorders (e. g. cystic fibrosis, *there is a correlation betw. Maternal constraints: walton and hammond (1938) crossbred shire horses and. Shetland ponies: foals from shetland dams were of similar size to pure. Shetlands: foals from shire dams were of similar size to pure shires. Lifestyle: maternal smoking, bernstein et. al (2005) found that for each additional single cigarette per day that a participant smoked in the 3rd trimester, there was an estimated 27 g reduction in birth weight. Number of fetuses in the pregnancy: singleton, twins, etc.

Related Questions

Fetal pig anatomy and physiology, Detailed explanations would bevery aprecciated!

1. The presence of the allantoic duct in the umbilicus providesa clue regarding how the functional roles of extraembryonicmembranes in placental mammals have been modified evolutionarilyfrom their roles in chick development. Explain!

2. What function does theumbilical cord play in a fetal mammal? To what does it connect?What are the functional roles of the umbilical artery and vein (andwhich carries more oxygen)?

3. From which embryonic germ layer does the coelomic lining(peritoneum) arise? By what process do the coelomic cavitiesdevelop?

4. How does a fetal pig obtainoxygen? What triggers the changeover to

lilacwallaby824

Biology 103

Chapter 15 Animals

1.Phylum Mollusca includes animals such as ___________, _____________, and ________________. They have a coelom. Their body consists of three parts _______________, ____________________, and _______________. Their shells are produced by _________________ .

2.Phylum Annelida includes animals such as ____________________, __________________, and ___________________. They have a coelom. ___________________ is a special segment of the earthworm that participates in reproduction.

3.Phylum Echinodermata includes animals such as ___________________, __________________, and ___________________. They have _____________________________________ system that provides hydrostatic power for locomotion.

4.Animals of Phylum Chordata all have ______________________, _________________________, _______________________, and ___________________________.

5._____________________ and ______________________ are the invertebrates in Phylum Chodata.

6.Fish includes cartilaginous fish and bony fish. Bony fish includes ray-finned fish and lobe-finned fish. Lobe-finned fish is considered ancestral to ____________________.

7.Birds and reptiles lay ______________ eggs to protect the developing embryo on dry land.

8.Birds and mammals can maintain their body temperature, they are __________________. Mammals that lay hard-shelled eggs such as _________________ are called ________________________; Mammals that have pouches such as _____________________ are called ___________________; Mammals that have placenta for fetal development are called _______________________. We belong to the Order _______________.

Question 1

Is haplodiploidy a necessary condition for the evolution ofeusociality?

Select one:

a. Yes, true eusociality is found only in the hymenoptera.

b. Yes, eusociality can only evolve when indirect fitness is ashigh as occurs between haplodiploid sisters.

c. No, true eusociality is also found in organisms that do nothave a haplodiploid genetic system.

d. No, coefficients of relatedness between sisters are never0.75 because there are always multiple fathers.

Question 2

Compared to most physical resources, how is informationunique?

Select one:

a. There is no cost associated with sharing information.

b. The production and sharing of information does not requireenergy.

c. Because information is not a tangible physical entity, itdoes not affect an individualâs fitness.

d. Information does not become depleted by sharing.

Question 3

In an analysis of independent contrast, researchers found thatfetuses in polyandrous species of primates had faster growth ratesthan those in monogamous species. What did the researchers concludefrom these results?

Select one:

a. Fetuses develop faster to âmake roomâ for offspring from adifferent male.

b. Extracting more resources from the mother maximizesoffspringsâ inclusive fitness in polyandrous species.

c. Fast fetal growth rates are always optimal.

d. Fetal growth rates represent phylogenetic constraints and areunrelated to mating systems.

MFAC1521 Lecture Notes - Lecture 51: Descending Aorta, Alveolar Cells, Ascending Aorta

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