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What part of the nervous system stimulates the arrector pili muscles and give you goosebumps?
Each arrector pili is composed of a bundle of smooth muscle fibres which attach to several follicles (a follicular unit), and is innervated by the sympathetic branch of the autonomic nervous system. The contraction of the muscle is therefore involuntary - stresses such as cold, fear etc. may stimulate the sympathetic nervous system and thus cause contraction, but the muscle is not under conscious control.
What else can I help you with?
What body system stimulates muscles to contract and interprets information from sensory organs?
The nervous system which also interprets information from sensory units
What 3 structures are only innervated by the sympathetic nervous system?
The structures that are only innervated by the sympathetic nervous system include the sweat glands, arrector pili muscles (responsible for piloerection or goosebumps), and the adrenal medulla (part of the adrenal gland that releases hormones like adrenaline).
What is the System that relays commands to skeletal muscles and stimulates glands and other muscle so that the organism may continue to live and respond to stimuli?
nervous
What kind of muscle is the arrector pili?
The contraction or relaxation of the erector pili muscle determines the orientation of hair on the skin. When it contracts, due to fear or cold, hair stands upright.This is a tiny muscle that attaches to the base of a hair follicle mammals at one end and to dermal tissue on the other end.
Does the arector pili muscles receive direct parasympathetic innervation?
Arector pili muscles get innervation from sympathetic out flow. But the neurotransmitter is acetylcholine. So functionally the nerve supply is parasympathetic.
Causes hair to stand on end?
Little muscles at the base of each hair shaft called arrector pili (also Erector pili).When we are cold, muscles just below our skin, called erector muscles, contract. This pulls on our hairs, causing them to stand on end. By doing this, the hairs form an insulating layer of air, which keeps us warm and maintans our constant internal body temperature.
What is a somatic nervous system?
A nerve that is under your conscious control and stimulates skeletal muscles also controls voluntary movements, such as writing, talking, smiling or jumping
What system gives you goosebumps?
the un (unvlountary) nervous system gives you goosesbumps.
How do cats get goosebumps?
1.when you feel or hear something your nervous system goes crazy
What kind of Eye muscles are controlled by the autonomic nervous system?
intrinsic eye muscles are controlled by the autonomic nervous system
The function of the autonomic nervous system in male reproduction?
The parasympathetic nervous system stinulates erection and the sympathetic nervous system stimulates ejaculation.
Which structure is innervated only by the sympathetic division of the ANS?
The muscles of the ciliary body and dilator pupillae of the eye are innervated only by the sympathetic division of the autonomic nervous system.
