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Class Notes 1-26-15 Fetus Video

by: Allie Newman

Class Notes 1-26-15 Fetus Video KIN 362

Marketplace > University of Alabama - Tuscaloosa > Kinesiology > KIN 362 > Class Notes 1 26 15 Fetus Video
Allie Newman
GPA 4.0
Motor Development
Tyler Williams

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About this Document

Class Notes 1-26-15 Fetus Video, notes on video from class, baby, pregnancy, development.
Motor Development
Tyler Williams
One Day of Notes
25 ?




Popular in Motor Development

Popular in Kinesiology

This 2 page One Day of Notes was uploaded by Allie Newman on Monday January 26, 2015. The One Day of Notes belongs to KIN 362 at University of Alabama - Tuscaloosa taught by Tyler Williams in Spring2015. Since its upload, it has received 50 views. For similar materials see Motor Development in Kinesiology at University of Alabama - Tuscaloosa.


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Date Created: 01/26/15
Allie Newman KIN 362 Class Notes 126 14 Video 0 7 weeks and 4 days 20 mm 0 Pregnancy lasts 38 weeks 0 During rst 8 weeks the human is called an embryo meaning developing period Fetus unborn offspring rest of pregnancy period of embryonic period 0 23 chromosomes are combined from each male and female Oocyte reproductive female Spermatozoon reproductive male Uterine tubes connect the ovaries Zygote joined together 46 chromosomes coiled DNA instructions for development of body 0 DNA I double helix 0 G C A T guanine with cyanine and adenine with thymine o 3 and 13 feet 1 meter 63 billion miles 0 Mitosis cell division 0 Early pregnancy factor can be detected in woman s blood within 2448 hours after fertilization 45 days forms a cavity called a blastocyst Inner cell mass head body etc o Implantation begins 6 days and ends 1012 days after fertilization hCG detected by most pregnancy tests 0 Allows pregnancy to continue by stopping menstrual cycle Placenta delivers oxygen hormones etc to developing fetal o Communicates to developing human through vessels 115 weeks form hypoblast yolk sac and epiblast amnion Ectoderm endoderm and mesoderm 3 layers of germ formation 0 Ectoderm brain spinal cord nerves skin nails hair 0 Endoderm respiratory system digestive tract liver pancreas o Mesoderm bones kidneys heart cartilage muscles blood cells Forebrain midbrain hindbrain o Tubular heart emerges within 34 weeks folding heart beating starts 3 weeks and 1 day following fertilization l heart brain spinal cord and yolk sac are all apparent o Amnion protection 0 Heart beats 113 times per minute changes color as it continually beats 0 Heart beats 54 million times before birth 0 Rapid brain growth is apparent by the forebrain midbrain hindbrain Upper and lower limb buds form withinaround 4 weeks 0 46 weeks the brain beginscontinues to form cerebral hemispheres o Cerebral hemispheres thought learning memory speech vision problem solving etc o 9 weeks l fetal respiratory system wind pipe and lungs connect Kidneys appear by 5 weeks embryo develops plates by 5 weeks as well Yolk sac contains early reproductive cells called germ cells 0 By 6 weeks the cerebral hemispheres are rapidly growing Blood cell formation is now apparent in liver white blood cells Diaphragm breathing is formed by 6 weeks 7 weeks l Hiccups are observed 4chambered hearts beating 167 times per minute ovaries are identi ed in females eye lids are growing ngers are separate toes are joined at the bases knee joints 8 weeks l brain is highly complex growth continues at extraordinary rate embryo becomes more physically active jaw movement grasping motions toe pointing marks end of embryonic period over 4000 distinct structures Fetal period continues until birth 9 weeks l thumb sucking uid swallowing grasp an object move head forward and back open and close jaw sigh stretch move tongue nerve receptors can sense light touch eyelids are completely closed in larynx vocal chords are identi able just beginning to form 10 weeks l downward rolling of the eye open and close the mouth suck right thumb ossi cation is underway in most bones nger tips 11 weeks l nose and lips are completely formed distinguish between male or female 1112 weeks 3 months marks end of rst trimester of pregnancy taste buds are formed pooping begins meconium digestive enzymes upper limb length has formed faster than lower almost entire body responds to light touch face continues to mature tooth development begins 15 weeks l blood cell formation Hormonal stress response needle procedure Vernix caseosa protective white substance against amniotic uid 5 months I cochlea is fully development hearing circadian rhythms begin to form hair begins to grow on the scalp hair follicles and glands are present 2122 weeks l lungs gain some ability to breathe air 24 weeks l eyes reopen 26 weeks l eyes produce tears pupils respond to light in 27 weeks smell is operational altered facial expressions summersaults are done fat maintains body temperature 7 months 28 weeks high and low sounds 30 weeks breathing is more o en 8 months 32 weeks alveoli develop in the lungs air pockets 35 weeks rm hand grasp 9 months fetus initiates labor by releasing estrogen fetus to newborn labor is marked by contractions 90 of our physiologic systems are functioning by 3 months


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