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Neuro Development
USCSOM: Neuro Development
| Question | Answer |
|---|---|
| 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
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