glial cells - Upper Mid-Atlantic

Round 11: Tossup 7

Gomori-positive subsets of these non-muscle cells are rich in degenerated mitochondria. Corkscrew-shaped aggregates called Rosenthal fibers are mostly composed of these cells’ namesake fibrillary acidic protein. EAAT1/2 (“E-A-A-T-one-two”) facilitates the reuptake of glutamate into these cells. (10[1])In response to injury, chondroitin sulfate proteoglycans produced by these cells accumulate in their namesake scars. The alkylating (10[1])agent temozolomide is used to treat WHO Grade III and IV blastomas of these cells. The Bergmann type of these cells is abundant in the Purkinje (10[1])layer. Synaptic pruning is mediated by phagocytic “micro” forms of these cells. (10[1]-5[1])Star-shaped types of these cells have foot processes (10[1])that form the blood-brain barrier. For 10 points, name these supportive non-neuronal (10[1])cells (10[1])of the CNS. ■END■ (10[1]0[2])

ANSWER: glial cells [accept neuroglial cells or neuroglia; accept macroglia or microglia; accept astroglia or astrocytes; accept radial glial cells or RGCs or radial glial progenitor cells or RGPs; accept Muller glia; accept Bergmann glia; accept glial fibrillary acidic protein or GFAP; accept glial scars or gliosis; accept glioblastomas or astrocytomas; prompt on brain cells; prompt on macrophages or leukocytes or phagocytes until read by asking “what non-immune function do they also serve?”; reject “neurons” or “nerve cells”]

<Southampton A, Biology> | Packet J - Southampton A, Indiana A, Illinois B, Edinburgh A

= Average correct buzzpoint

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Buzzes

Player	Team	Opponent	Buzzpoint	Value
Moses Kitakule	Columbia A	Johns Hopkins A	34	10
Vikshar Athreya	Rutgers A	Maryland C	52	10
Zachary Joseph	Columbia B	NYU B	78	10
Andrew Massaro	Catholic	Maryland B	90	-5
Andy Yu	Maryland A	NYU A	90	10
Chauncey Lo	Columbia C	Rutgers B	98	10
Jerry Vinokurov	John Jay	Johns Hopkins B	110	10
Owen Steele	Swarthmore	Georgetown	111	10
Xavier Bornhorst	Maryland B	Catholic	115	10
Zaid Asif	NYU C	Vassar	115	0
William McNarney	Vassar	NYU C	115	0

Summary

Tournament	Edition	Match	Heard	Conv. %	Neg %	Avg. Buzz
California (North)	Main Site	✓	3	67%	33%	93.50
California (South)	Main Site	✓	4	50%	100%	115.00
Canada	Main Site	✓	12	75%	42%	98.00
Florida	Main Site	✓	3	100%	33%	111.00
Great Lakes	Main Site	✓	5	80%	60%	101.50
Lower Mid-Atlantic	Main Site	✓	9	44%	44%	79.00
Midwest	Main Site	✓	8	75%	63%	94.33
Northeast	Main Site	✓	5	80%	40%	102.75
Overflow	Main Site	✓	3	33%	67%	115.00
South Central	Main Site	✓	2	50%	50%	115.00
Southeast	Main Site	✓	8	75%	38%	102.17
UK	Main Site	✓	6	67%	33%	114.75
Upper Mid-Atlantic	Main Site	✓	9	89%	11%	86.00
Upstate NY	Main Site	✓	4	75%	50%	108.33