Motor Pathways

Item #3 of 10

The muscle contractions resulting in fine and discrete movements of the fingers are controlled uniquely by the _________________.

ventrolateral and ventral anterior nuclei of the thalamus;

ventromedial pathways;

corticospinal tract;

tectospinal tract;

none of the alternatives is correct because there is no one unique tract controlling discrete contractions of the muscles underlying discrete finger movements.;

INCORRECT - These thalamic nuclei are included in the extrapyramidal motor system and are not involved in controlling the muscle contractions underlying fine discrete movements of any kind. They function primarily to modulate fine motor control.

[Review Part 1 of the tutorial] [Review Part 2 (Matching) of the tutorial]


		ventrolateral and ventral anterior nuclei of the thalamus;
		ventromedial pathways;
		corticospinal tract;
		tectospinal tract;
		none of the alternatives is correct because there is no one unique tract controlling discrete contractions of the muscles underlying discrete finger movements.;