Week 1: Histology Flashcards
Name the organ seen here
Spinal cord
Identify the vertebral level of the organ seen here
Thoracic
Name the region of the organ indicated by marker #1 and what cells are located here
Dorsal horn and sensory neuron (axons)
Name the cells indicated by marker #2
Somatic motor neuron (cell bodies)
Name the embryonic germ layer origin of the cells indicated by marker #2 and #4
Neurectoderm / Neural tube
Name the 4 neurons that arise from neurectoderm / neural tube
- Somatic motor neurons
- Preganglionic visceral motor neurons
- Interneurons
- Cranial sensory neurons
Name the 3 neurons that arise from neural crest
- Post cranial sensory neurons (those whose cell bodies are located in the dorsal root ganglia)
- Postganglionic visceral motor neurons (Chromaffin cells of adrenal medulla are in this category)
- Enteric Neurons
Name the type of cell indicated by marker #3
Glial cell (oligodendrocyte)
Name the type of cell indicated by marker #3
Glial Cell (oligodendrocyte)
Name the layer of the embryonic neural tube that contains the precursors that give rise to the cell type indicated by marker #3
Ventricular zone/layer
Name the region of the organ indicated by marker #2 and #4
Ventral horn
Name the region (plate) of the embryonic neural tube that gives rise to the cell types within the area indicated by marker #2 and #4.
Basal plate
Name the area/region indicated by marker #5
Central canal
Name the cells that line the area/region indicated by marker #5
Ependymal cells
Name the fluid that circulates in the area/region indicated by marker #5
Cerebrospinal Fluid (CSF)
Name the structure and function of the structure indicated by marker #1
Choroid plexus and produce CSF
Name 2 locations in the vertebral column where the product of the structure indicated by marker #1 would be found
- Central canal
- Subarachnoid space
Name the most likely location of the structure indicated by marker #1
4th ventricle roof
Name the organ seen dorsally to the structure indicated by marker #1
Cerebellum
means “mini cerebrum” in latin
Name the opening(s) through which product from the structure indicated by marker #1 most likely exits to the subarachnoid space
- 2 lateral aperatures (foramina of Luschka)
- Median aperature (foramen of Magendie)
Name the region and a function of the organ seen here
Cerebral cortex and higher congitive functions like memory, language, reasoning, decision-making, intelligence, etc.
Name the embryonic brain secondary vesicle from which this region develops
Telencephalon
Name the cells of the cerebral cortex indicated by markers #1-3. Be specific
Pyramidal neurons
What is the function of the cells of the cerebral cortex indicated by markers #1-3
Primary excitatory neurons for higher cognitive functions