Term
| The three periods of prenatal development |
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Definition
| The three periods are the Germinal, the Embryonic, and the Fetal |
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Term
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Definition
| This period is the first 2 weeks of development during the formation of the primitive germ layers |
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Definition
| The period between the 2nd-8th week in which organ systems develop |
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Definition
| The last 30 weeks of the prenatal develpment in which organ systems grow and mature |
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Term
| Clinical age and the Estimated Date of delivery |
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Definition
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Term
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Definition
| This is the fertilized egg |
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Definition
| The ability to develop into a wide range of tissues |
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Definition
| A solid ball of 12 or more cells |
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Definition
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Term
| Functions of the Placenta |
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Definition
| This provides nourishment to the embryo, allows for gas exchange, removes waste, and produces HCG which maintains the corpus luteum |
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Term
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Definition
| This is the fetal part of the placental structure and contains the syncytiotrophoblasts and embryonic capillaries |
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Term
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Definition
| This is the fluid filled space around the embryo |
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Term
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Definition
| Ectoderm,Mesoderm, and Endoderm layers |
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Term
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Definition
| This is the site of formation of the first blood cells and the cells that will become spermatogonia and oogonia |
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Definition
| This is what the brain and spinal cord comes from |
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Definition
| these cells form the brain, spinal cord, the PNS, the adrenal medulla, melanocytes, some parts of the head (parts of the skull, dentin of teeth, connective tissue) |
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Definition
| These are cells that become part of the skull, the vertebral column and skeletal muscle |
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Definition
| The tube structure of the embryo |
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Definition
| This is part of the foregut that becomes the mouth |
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Definition
| This part of the hindgut that becomes the anus and urethral opening |
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Term
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Definition
| This is the evagination that becomes the bladder |
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Term
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Definition
| These are solid bars of tissue that form along the lateral surface of the head and cause pouches to form |
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Term
| What form from the Pharyngeal Pouches? |
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Definition
| Auditory tubes, tonsils, the thymus, and the parathyroids form from these |
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Term
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Definition
| This is how the appendages form |
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| Structures that form the face |
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Definition
| The Frontonasal process, Maxillary processes, and the Mandibular processes and the Nasal placodes. |
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Definition
| This is what the Epidermis is derived from |
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Term
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Definition
| The dermis and neural crest cells are derived from this. |
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Term
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Definition
| This is formed from 2 tubes that fuse together and then change shape |
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Term
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Definition
| This forms from a single mid-line evagination from the foregut in the region of the future esophagus |
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Term
| The Urinary System develops from which germ layer? |
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Definition
| The mesoderm develops into this system that gets rid of waste |
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Term
| Kidney development - 3 steps |
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Definition
| The pronephros, the mesonephros and metanephros are steps to develope this |
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Term
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Definition
| These are what the male and female gonads develope from |
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Term
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Definition
| This is fine hair that covers the fetus |
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Term
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Definition
| This is a waxy coat of sloughed epithelial cells that protect the fetus from the embryonic fluid |
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Term
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Definition
| This is the process of birth |
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Term
| What hormones are involved in the mother for parturition? |
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Definition
| Estrogens (overcome the influence of progesterone) and oxytocin |
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Term
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Definition
| This is the stage of labor that regular uterine contractions begin and the cervix dialates fully |
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Term
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Definition
| This is the stage of labor that starts when the cervix completely dialates until the baby exits the vagina |
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Term
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Definition
| This is the stage of labor that the placenta is expelled from the uterus |
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Term
| How the Hormones are used in Parturition |
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Definition
1)The baby is stressed causing ACTH from the fetal pituitary to release
2)the ACTH causes Estrogen and prostaglandin synthesis to increase
3)The fetus causes the uterus to stretch
4)The uterine stretch stiumlates the maternal pituitary to release oxytocin
5)The oxytocin and estrogen causes uterine contractions |
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Term
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Definition
| This structure is located between the baby's atria and is closed after birth |
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Term
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Definition
| This structure is located between the baby's pulmonary trunk and aorta and closes after birth |
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Term
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Definition
| This is the discharge of cells from the digestive tract, amniotic fluid, bile and mucus that is excreted by the newborn |
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Term
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Definition
| APGAR: Appearance, Pulse, Grimace, Activity, Respiratory effect ; scaled from 0-2 |
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Definition
| The hormone that causes milk production |
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Term
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Definition
| The initial secretion from the breasts that is low in fat and lactose |
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Term
| What causes the closure of the Ductus arteriosus? |
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Definition
| An increase in oxygen during the first breath causes this to close |
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Term
| What closes the closure of the foramen ovale? |
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Definition
| The decrease in resistane in the pulmonary vasculature causes the left atrial pressure to increase more that the right atrial, therefore, closing this structure |
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Term
| The fetus is most susceptible to teratogens during what time? |
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Definition
| During the 3rd-8th week the fetus is susceptible to this |
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Term
| The Mesoderm layer derives these: |
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Definition
| Urogenital structures, blood, bone, muscle |
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Term
| Spermatogenesis takes this long: |
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Definition
| It takes 2 months for this process to complete in males |
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Term
| How many arteries and veins does the umbilical cord contain? |
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Definition
| This contains 2 arteries (caring deoxygenated blood away from) and 1 vein(bring oxygenated to) the fetus |
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Term
| The primary spermatocyte is haploid or diploid? |
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Definition
| This spermatocyte is diploid |
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Term
| The secondary spermatocyte is haploid or diploid? |
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Definition
| This spermatocyte is haploid |
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Term
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Definition
| This is the structure that the ductus arteriosus forms after it closes |
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Term
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Definition
| This is what the foramen ovale becomes after it closes |
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Term
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Definition
| The second of two major septal structures of the atrium that arises second. |
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Term
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Definition
| The point in the inner cell mass at which the embryo begins to be formed |
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Term
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Definition
| End of the embryonic cardiac tube where blood leaves the heart; becomes part of the ventricle |
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Term
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Definition
| The cells that are derived from the neural crest or mesoderm of the embryo |
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Term
| What does the levels of estrogen and progesterone do after parturition? |
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Definition
| Estrogen and Progesterone levels fall dramatically after this event. |
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Term
| What hormone is responsible for the growth of breast alveolar during pregnancy? |
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Definition
| Progesterone is responsible for this change in the breast during pregnancy. |
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