BAC = .15 = This blood-alcohol level means the equivalent of 1/2 pint of whiskey is circulating in the blood stream. 8. BAC = .18-.25 = Drinkers are disoriented, confused, dizzy, and have exaggerated emotional states. Vision is disturbed, as is perception of color, form, motion, and dimensions.
goose bumps. pl.n. Momentary roughness of the skin caused by erection of the papillae in response to cold or to a strong emotion, such as fear or awe. Also called goose flesh, goose pimples.
The arrector pili muscle is a smooth muscle bundle between. the outer root sheath and the dermal upper layer. The hair stands. vertically after contraction of the arrector pili muscles. This. slightly elevates the peripheral hair follicles (causing goose. bumps). Controlled by the adrenergic sympathetic nerves, the. arrector pili muscle is contracted by cold stress and emotional. stresses including fear and surprise. The formation of goose. bumps may accompany shivering that occurs to raise the body. temperature. The sebaceous gland produces sebum (Fig.