An investigation is conducted into mammalian thermoregulation in response to cold exposure. The schematic below shows the homeostatic reflex pathway activated to maintain core body temperature.
Which of the following rows correctly identifies the missing components [X][X][X], [Y][Y][Y], and [Z][Z][Z]?
[X][X][X]: Hypothalamus; [Y][Y][Y]: Skeletal muscle; [Z][Z][Z]: Rapid contraction and relaxation (shivering) to generate metabolic heat
[X][X][X]: Medulla oblongata; [Y][Y][Y]: Cutaneous arterioles; [Z][Z][Z]: Vasoconstriction to divert blood flow away from the skin surface
[X][X][X]: Hypothalamus; [Y][Y][Y]: Cutaneous arterioles; [Z][Z][Z]: Vasodilation to increase blood flow to capillaries near the skin surface
[X][X][X]: Cerebellum; [Y][Y][Y]: Erector pili muscles; [Z][Z][Z]: Contraction of muscles to make hairs stand upright to trap a layer of air
