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...
Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..
The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..
If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..
This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..
A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..
Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..
