15. Autonomics and Reproduction Parasympathetic Effect Sympathetic Effect and Receptor Type Relaxation ( β 2 ) Labor Contraction ( α 1 ) Uterus No effect Stimulation ( α 1 ) Orgasm, smooth muscle roles Stimulation No effect Glandular secretion Stimulation No effect Penile or clitoral erection
16. Innervation of the Integumentary System No effect Hair erection ( α 1 ) Piloerector muscles No effect Secretion ( α 1 ) Apocrine sweat glands (scent) No effect Secretion (muscarinic) Merocrine sweat glands (cooling) Parasympathetic Effect Sympathetic Effect and Receptor Type
17. Innervation of the Eye Secretion None Lacrimal (tear) gland Contraction for near vision Relaxation for far vision( β 2 ) Ciliary muscles and lens Pupillary constriction Pupillary dilation ( α 1 ) Iris Parasympathetic Effect Sympathetic Effect and Receptor Type