Arrector pili muscles
bundles of smooth muscle fibres, attached to the deep part of the hair follicles, passing outward alongside the sebaceous glands to the papillary layer of the corium; they act to pull the hairs erect, causing goose bumps or goose flesh (cutis anserina).
Synonym: musculi arrectores pilorum, arrectores pilorum, erector muscles of hairs.
Arrector pili muscles bundles of smooth muscle fibres, attached to the deep part of the hair follicles, passing outward alongside the sebaceous glands to the papillary layer of the corium; they act to pull the hairs erect, causing goose bumps or goose flesh (cutis anserina). Synonym: musculi arrectores pilorum, arrectores pilorum, erector muscles of hairs...
Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..
The human body is capable of regulating growth and energy balance through various feedback mechanisms. Get to know the e..
Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..
Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..
Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains matu..
Learn how the way genes control and determine every aspect of the body. This lesson uses lac operon as an example. ..
..
