Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
65 Cards in this Set
- Front
- Back
Fetal Landmark: Primitive Streak
|
Week 3
|
|
Fetal Landmark: Notochord
|
Week 3
|
|
Heart begins to beat
|
Week 4
|
|
Upper and lower limb bud formation?
|
Week 4
|
|
Genitalia have male/female characteristics
|
Week 10
|
|
Adenohypophysis, lens of eye, epithelial linings, epidermis.
|
Surface ectoderm.
|
|
Neurohypophysis, CNS neurons, oligodendrocytes, astrocytes.
|
Neuroectoderm.
|
|
Ependymal cells, Pineal gland.
|
Neuroectoderm.
|
|
ANS, dorsal root ganglia, cranial nerves.
|
Neural crest.
|
|
Melanocytes, chromaffin cells of adrenal medulla, parafollicular (C) cells of thyroid.
|
Neural crest.
|
|
Laryngeal cartilage, bones of skull.
|
Neural crest.
|
|
Dura mater, connective tissue.
|
Mesoderm.
|
|
Muscle, bone, cardiovascular structures, lymphatics, blood.
|
Mesoderm.
|
|
Urogenital structures, serous linings of body cavities (peritoneal), spleen.
|
Mesoderm.
|
|
Adrenal cortex, Kidneys.
|
Mesoderm.
|
|
Gut tube epithelium and derivatves.
|
Endoderm.
|
|
Lungs, liver, pancreas.
|
Endoderm.
|
|
Thymus, parathyroid, thyroid follicular cells.
|
Endoderm.
|
|
Nucleus pulposus of intervertebral disk.
|
Notochord.
|
|
Most susceptible period of pregnancy?
|
3rd-8th weeks (organogenesis).
|
|
Truncus arteriosus
|
Ascending aorta and pulmonary trunk.
|
|
Bulbus cordis.
|
Smooth parts of left and right ventricle.
|
|
Primitive ventricle.
|
Trabeculated parts of left and right ventricle.
|
|
Primitive atria.
|
Trabeculated left and right atrium.
|
|
Left horn of sinus venosus
|
Coronary Sinus.
|
|
Right horn of sinus venosus.
|
Smooth part of right atrium.
|
|
Right common cardinal vein and right anterior cardinal vein.
|
SVC.
|
|
Chorion consists of?
|
Extraembryonic somatic mesoderm, cytotrophoblast, syncytiotrophoblast.
|
|
Closes PDA, keeps patent PDA open?
|
Indomethacin, Prostaglandins.
|
|
Ligamentum teres hepatis?
|
Umbilical vein.
|
|
Medial umbilical ligaments
|
Umbilical arteries.
|
|
Median umbilical ligament.
|
Allantois/Urachus.
|
|
Aortic arch- #1
|
Maxillary artery.
|
|
Aortic arch- #2
|
Stapedial artery and hyoid artery.
|
|
Aortic arch- #3
|
Common carotid artery and proximal part of internal carotid artery.
|
|
Aortic arch #4.
|
Aortic arch on left, proximal part of right subclavian artery.
|
|
Aortic arch #6.
|
Proximal part of pulmonary arteries and ductus arteriosus.
|
|
Branchial clefts derived from?
|
Ectoderm.
|
|
Branchial arches derived from?
|
Mesoderm.
|
|
Branchial pouches derived from?
|
Endoderm.
|
|
Muscles of mastication, mandible, maxilla, malleus.
|
Branchial arch 1 derivatives.
|
|
Stapes, Styloid process. Stapedius, Stylohyloid.
|
Branchial arch 2 derivatives.
|
|
Stylopharyngeus.
|
Branchial arch 3 derivatives.
|
|
Most pharyngeal constrictors, cricothyroid, levator veli palatini.
|
Branchial arch 4.
|
|
All intrinsic muscles of larynx, except cricothyroid.
|
Branchial arch 6.
(Branchial arch 5 makes no major developmental contribution). |
|
Branchial arch innervation:
1 2 3 4 6 |
CN V
CN VII CN IX CN X- superior laryngeal branch. CN X- recurrent laryngeal branch. |
|
Anterior 2/3 of tongue?
|
Formed by branchial arch 1. Sensation via CN V3, taste via CN VII.
|
|
Posterior 1/3 of tongue?
|
3rd and 4th arches.
Sensation and taste mainly CN IX. Extreme posterior CN X. |
|
Motor innervation of tongue?
|
CN XII.
|
|
1st branchial cleft?
2nd-4th clefts? |
External auditory meatus.
obliterated. if they proliferate lead to branchial cyst in the neck. |
|
1st branchial pouch?
|
Middle ear cavity, eustachian tube, mastoid air cells.
1st pouch contributes to endoderm-lined structures of ear. |
|
2nd branchial pouch?
|
Epithelial lining of palatine tonsil.
|
|
3rd branchial pouch?
|
Inferior parathyroids and thymus.
|
|
4th branchial pouch?
|
Superior parathyroids.
|
|
Aberrant development of 3rd and 4th pouches?
|
DiGeorge's syndrome. leads to T cell deficiency and hypocalcemia.
|
|
Cleft lip?
|
Failure of fusion of maxillary and medial nasal processes.
|
|
Cleft palate?
|
Failure of fusion of lateral palatine processes, the nasal septum, and/or the median palatine process.
|
|
Diaphragm derived from?
|
Septum transversum, pleuroperitoneal folds, body wall, dorsal mesentery of esophagus.
|
|
Spleen comes from?
|
Dorsal mesentery but supplied by artery of foregut.
|
|
Mesonephric (wolffian duct) develops into?
|
SEED: Seminal vesicles, epididymis, ejaculatory duct, and ductus deferens.
|
|
Paramesonephric (mullerian) duct develops into?
|
Fallopian tube, uterus, and part of the vagina.
|
|
Genital homologues:
Genital tubercle |
Glans penis.
Glans clitoris. |
|
Urogenital sinus
|
Vestibular bulbs, corpus spongiosum.
Bulbourethral glands, Greater vestibular glands. Prostate gland, urethral and paraurethral glands. |
|
Urogenital folds
|
Ventral shaft of penis. Labia minora.
|
|
Labioscrotal swelling.
|
Scrotum, labia majora.
|