Words similar to spiny

Example sentences for: spiny

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Approximately 90% of all neurons in the striatum - 1.5 to 2.5 million in mice [ 1, 2] and 110-200 million in humans [ 3, 4] - belong to an unusual type 'of inhibitory projection cell referred to as medium spiny neurons [ 5 6 7 8 ] . Striatal neurons are divided into two major subpopulations (patch and matrix), that have somewhat different gene expression profiles and have different patterns of pre- and postsynaptic connections [ 9 10 11 12 13 ] .
However, these two genera were removed from Artemisia s.l ., and on the basis of spiny pollen have been considered transitional between the Artemisia -group and four radiate genera: Tridactylina Arctanthemum, Brachanthemum, and Dendranthema . Our ITS phylogeny places disciform Ajania sister to radiate Arctanthemum derived from within the Arctanthemum-Dendranthema clade, rather than sister to the Artemisia -group.
Picrothamnus was established by Nuttall, but reduced as A. spinescens Hall and Clements, and according to Bremer and Humphries [ 2 ] is essentially Dracunculus with two autapomorphies: spiny habit and cobwebby-pilose cypselas.
The striatum may be a special case - a region in which numbers of medium spiny neurons is more tightly regulated than neuron populations in some other regions.
Numbers of medium spiny neurons and ratios of these and less numerous striatal interneurons are critical variables that influence motor performance and aspects of cognition.