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73 Cards in this Set
- Front
- Back
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PULMONARY VEIN DEVELOP FROM...? |
PRIMITIVE LEFT ATRIUM |
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First polar body excruded at |
Ovulation |
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Primordial germ cells derived from |
Yolk sac |
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Cervix developmed from |
Paramesonephric(MilleriIan) ducts |
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Millerian duct derivatives... mesodermal... |
Fallopian tubes,cervix,uterus,upper2/3of veginal.. |
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Lower 1/3 of veginal derived from |
Lower part of synoveginal bulbs all derived from urogenital sinus. |
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Neural crest derivatives |
Neurons of spinal posterior nerve root ganglion,sensory ganglion of 5,10cn,neurons and stellate cells of sympathetic ganglia. |
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Testes developmed from |
Germinal epithelium gets thickened& k/a genital ridge.and cells proliferate & forms seminiferous tubules. |
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Chorion is formed by... |
Partial/somatopleuritic extraembryonic mesoderm&tropoblast. |
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The cells of ovaries &testes differentiate in |
Yolk sac |
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In Implantation |
Embryo attaches to uterus. |
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During Implantation embryo is k/a |
Blastocyst |
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Implantation of fertilized ovum occur at... |
9 days after ovulation ranging b/w 6 to 12 days. |
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1st pharyngeal arch derivatives |
(MANDIBULAR NERVE). Medial&lat pterygiods Masseter Mylohyoid Ant belly of digastric MasseterMylohyoidAnt belly of digastricTemporalsTensor tympaniTensor palati. Temporals Tensor tympani Tensor palati. |
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2nd pharyngeal arch derivatives |
(facial nerve) Facial muscles Auricular muscles Occipitofrontalis Platysma Posterior belly of digastric Stapedius Stylohyiod |
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3rd pharyngeal arch derivatives |
Glossopharyngeal nerve Stylopharyngeus |
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4th pharyngeal arch derivatives |
Superior laryngeal nerve Muscle of larynx&pharynx |
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5th pharyngeal arch derivatives |
Recurrent laryngeal nerve |
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UMBILICAL CORD CONTAINS |
2 arteries,1vein Fetal membrane Amnion Wharton's jelly Remenent of villelointestinal duct |
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Ligamentum arteriosum derived from |
Ductus arteriosus which connects pulmonary artery to descending aorta. It is bypass during fetal life If it is persistent during life k/a patent ductus arteriosus. |
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Arch of aorta develops from |
Left fourth aortic arch artery On Lt it forms arch of aorta b/w Lt cca&Lt subclavian artery. On rt it forms proximal segment of rt subclavian artery. |
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Lens developed from.. |
Surface ectoderm. |
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Fate of notocord is |
Nucleus pulposus |
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Trigone of urinary bladder developes from.. |
Mesoderm. Ureters come lat angles Mesonephric ducts open close form urethra Smooth muscle from splanchopluric mesoderm |
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Urachus |
Apex of bladder continues with allantois obliterated & form urachus. |
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Median umbilical ligament |
Urachus persist throughout life runs from apex of bladder to umbilicus. |
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In adult heart floor of fossa ovalis represent |
Septum premium. Fossa/annulus ovalis lies on rt atrimSeparated rt< atrium. atrim Separated rt< atrium. |
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Tympanic membrane developes from |
All 3 germ layers |
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True diverticulum |
Meckel's diverticulum(most frequent malformation) True congenital,small bulge in small intestine at birth. Vestigial remenent of ompalomesenteric(vitteline duct,yolk sac) |
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Meckel's diverticulum |
2% population 2% symptomatic 2 inches long 2 feet from iliocecal valve. 2 types of ectopic tissues( pancreatic,gastric). 2 is MC age at clinical presentation 2 time male MC affected. |
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Artery in floor of anatomical snuff box |
Radial |
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Umbilical cord developes from |
Yolk sac & allantois. |
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Length of umbilical cord |
crl Equals to crlIn neonate 50 cm(20 Inc)long.2cm diameter. In neonate 50 cm(20 Inc)long.2cm diameter. |
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Umbilical vein carries |
Oxygenated blood |
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Cloacal duct |
Communication b/w 2 portions of hind gut. |
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Ligamentum teres is... |
Remnant of lt umbilical vein |
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Anatomical obliteration of ductus arteriosus occur at |
30 days |
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If vittelointestinal duct(ompalomesenteric duct) persist |
Causes Umbilical polyp Umbilical sinus Fibrous remenent Meckel's/ilial diverticulum Patent vittelointestinal duct. |
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Mesenteric cyst |
Benign proliferation of ectopic lymphatics. Occur anywhere in hi from duodenum to rectum. |
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Implantation of blastocyst |
Occur on 6th day after fertilization. |
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Spermatogenesis |
Process of spermatogonia(diploid) mature tospermatozoa(haploid) |
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Spermioogenesis |
Part of spermatogenesis Mature sprmatids to spermatozoa. |
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Spermatozoa attains motility in.. |
Epididymis |
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Fsh |
Stimulate spermatogenic epithelium |
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Lh |
Stimulate testosterone production by leidig cells. |
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Clitoris developes from |
Genital ridge |
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Platysma derived from |
2nd pharyngeal arch |
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Malleus derived from |
1st pharyngeal arch Malleus called Meckel's cartilage The incus malleus of middle ear derived from dorsal end. |
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Outer membrane of fetus |
Desidua capsularis |
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Horse shoe kidney lies at level of |
Inferior mesenteric artery & does not ascend higher.. |
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Skin derived from |
3 components Surface ectoderm - epidermis Neural crest - melanoblasts(dendritic cells) Mesenchyme - dermis |
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Anterior belly of digastric derived from |
1st pharyngeal arch |
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Posterior belly of digastric derived from |
2nd pharyngeal arch.. |
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Adrenal medulla derived from |
Neural crest |
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Time taken for spermatogenesis |
74 days |
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Sperm fertilizes egg in what form |
Spermatozoon |
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Embryonic period extends from |
3 -8 weeks |
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Secondary & tertiary villi seen on |
16th day |
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Zona pellucida |
Contains glycoprotein Surrounds morula,ovum. |
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Odontoblast |
Mesodermal cells of papilla adjacent to ameloblasts.. |
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Lens |
Surface ectoderm |
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Retina |
Neuroectoderm(optic cup) |
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Vitreous |
Mesoderm |
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Choroid |
Mesoderm |
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Ciliary body |
Mesoderm |
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Ciliary muscles |
Mesenchyme cells..neural crest? |
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Iris |
Mesoderm |
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Muscles of iris |
Neuroectoderm |
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Sclera |
Mesoderm |
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Cornea |
Surface epithelium by ectoderm Substantia proper,inner epithelium by neural crest |
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Conjunctiva |
Surface ectoderm |
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Blood vessels |
Mesoderm |
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Optic nerve |
Neuroectoderm.its coverings from mesoderm. |
