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Neuro Development

USCSOM: Neuro Development

QuestionAnswer
2 cell stage occurs in how many hours? 36
4 cell stage occurs in how many hours? 40
A 12 to 16 cell mass is the? morula
Type of cell that can become any cell in the body? totipotent
Type of cell that can become many types of cells but not all? pluripotent stem cell
Type of cell facilitating communication with endothelial blood vessel cells? adult neural stem cells
Thickened band of pluripotential cells in the bilaminar disc is knows as the ______ primitive streak
What week does the bilaminar embryonic disc form? 2
What week does the primitive streak form? 2
What week does the neural groove form? 3
What week do the neural fold form? 3
What week is the first menstrual period missed? 3
What is the conspicuous knot of specialized ectodermal cells on the primitive streak? primitive node
What structure in the adult are notochordal remnants? nucleus pulposus of the IV disc
Persistant notochord may develop into what kind of tumors? chordomas
Neural groove appears in what week of development? 3
What week do the neural folds begin to fuse? 4
What is the term used for the future brain in the embryo? encephalon
What are the 3 major divisions of the embryonic brain? prosencephalon, mesencephalon, rhombencephalon
What week are the 3 distinct forms of the brain formed? 3
What is neurulation? fustion of the neural folds forming the neural tube
What week does neurulation occur? 4
What week is the neural canal formed? 4
The neural canal becomes the future what? ventricular system
What 2 flexures change ventral to dorsal folding? mesencephalic and cervical flexure
What is the term given to autonomic and sensory impairment with thickening and expansion of the meninges? neural crest syndrome
What are the 5 identifiable division of the embryonic brain? telecephalon, diencephalon, mesencephalon, metencephalon, myelencephalon
What are the 3 poles of the brain? frontal, occipital, temporal
What are the 4 surfaces of the brain? Sup, Inf, Lat, Med
What are the 5 lobes of the brain? Frontal, Occipital, Temporal, Parietal, Incilar
What is included in the Diencephalon? thalamus, hypothalamus, subthalamus, epithalamus
Most congenital malformations occur in what weeks of development? 3-5
What is the term for all forms of developmental malformations occurring in the median plane of the back? spinal syraphism
What is the most common CNS malformaion? spina bifida
What term is used for a bony spinal defect superficial to the normal spinal cord? spina bifida occulta
What term is used when a membrane surrounding the spinal cord herniates through a bony defect? spina bifida cystica
What defect involves only the meninges in the cyst? meningocele
What defect involves the spinal cord and roots in the meninges in the cyst? myelomeningocele
What is an increase of cerbrospinal fluid in the ventricular system? hydrocephaly
What is a conspicuous malformation of the brain that is incompatible with life? anencephaly
What is the spongy brain mass left in anencephaly? area cerbrovasculosa
Anencephaly would occur in what week of development? 5
Created by: jlellerm