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Arrector pili muscle

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Journal of the American Academy of Dermatology Volume 51, Issue 2, August 2004, Pages 217-222 The contribution of the arrector pili muscle and sebaceous glands to the follicular unit structure☆ Enrique Poblet, Francisco Ortega.
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Contraction of arrector pili muscles have a principal function in the majority of mammals of providing thermal insulation. Air becomes trapped between the erect hairs, helping the animal retain heat.
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Fujiwara, Hironobu; Ferreira, Manuela; Donati, Giacomo; Marciano, Denise K.; Linton, James M.; Sato, Yuya; Hartner, Andrea; Sekiguchi, Kiyotoshi; Reichardt, Louis F.; Watt, Fiona M. (2011-02-18).
99: 258: 670: 63: 706: 159:. The muscle attaches to the follicular stem cell niche in the follicular bulge, splitting at their deep end to encircle the follicle. 348: 671:
https://web.archive.org/web/20110903154915/http://animaldiversity.ummz.umich.edu/site/topics/mammal_anatomy/hair.html
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fibres which attach to several follicles (a follicular unit). Each is innervated by the sympathetic division of the
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Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web;
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Budhiraja, Virendra; Rastogi, Rakhi; Khare, Satyam; Khare, Anjali; Krishna, Arvind (2010-09-01).
277: 70: 58: 1108: 333: 905: 715: 8: 910: 858: 853: 837: 1025: 934: 874: 750: 537: 479: 408: 375: 139:. Contraction of these muscles causes the hairs to stand on end, known colloquially as 957: 947: 942: 775: 649: 641: 587: 579: 529: 521: 500:
Torkamani, Niloufar; Rufaut, Nicholas; Jones, Leslie; Sinclair, Rodney (2017-01-01).
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to be forced along the hair follicle towards the surface, protecting the hair.
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The term "arrector pili" comes from Latin. It translates to "hair erector".
199:'s long, thick hairs causes the animal to become more intimidating, scaring 793: 783: 653: 591: 533: 475: 417: 376:"The Basement Membrane of Hair Follicle Stem Cells Is a Muscle Cell Niche" 1083: 1078: 1056: 901: 284: 140: 112: 1073: 969: 893: 845: 723: 269: 558:
Poblet, Enrique; Jiménez, Francisco; Ortega, Francisco (August 2004).
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can damage arrector pili muscles, preventing their contraction.
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The contraction of the muscle is involuntary. Stresses such as
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Wheater's Functional Histology: a text and colour atlas
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Arrector pili muscles also stabilise the base of the
557: 440:Pascalau, Raluca; Kuruvilla, Rejji (August 2020). 332: 439: 1100: 330: 714: 675: 564:Journal of the American Academy of Dermatology 339:. Lippincott Williams & Wilkins. pp.  151:Each arrector pili is composed of a bundle of 700: 624:International Journal of Infectious Diseases 707: 693: 607:https://doi.org/10.1016/j.jaad.2004.01.054 324: 218: 635: 457: 407: 211:Pressure exerted by the muscle may cause 230: 14: 1101: 688: 308:"Anatomy of the Skin | SEER Training" 182: 179:, and thus cause muscle contraction. 676:Burkitt, Young; et al. (1993). 553: 551: 495: 493: 435: 433: 431: 429: 427: 369: 367: 302: 300: 250: 24: 206: 27:Muscles attached to hair follicles 25: 1120: 548: 490: 442:"A Hairy End to a Chilling Event" 424: 364: 297: 506:Anatomical Science International 331:David H. Cormack (1 June 2001). 276: 257: 131:, are small muscles attached to 190: 611: 598: 13: 1: 663: 146: 7: 716:Skin and related structures 162: 47:postganglionic nerve fibers 10: 1125: 637:10.1016/j.ijid.2009.11.018 576:10.1016/j.jaad.2004.01.054 459:10.1016/j.cell.2020.07.004 392:10.1016/j.cell.2011.01.014 242: 177:sympathetic nervous system 107:Anatomical terms of muscle 1047: 1024: 1006: 968: 933: 924: 892: 883: 836: 802: 774: 731: 722: 518:10.1007/s12565-016-0359-5 105: 93: 81: 69: 57: 52: 37: 32: 312:training.seer.cancer.gov 291: 235:Skin conditions such as 157:autonomic nervous system 870:Loose connective tissue 219:Hair follicle stability 175:etc. may stimulate the 993:Bulb with matrix cells 680:. Heath. p. 162. 283:Cross-section of all 231:Clinical significance 125:arrector pili muscles 1016:Arrector pili muscle 906:Apocrine sweat gland 129:hair erector muscles 911:Eccrine sweat gland 859:Panniculus carnosus 854:Panniculus adiposus 838:Subcutaneous tissue 335:Essential histology 1026:Pilosebaceous unit 875:Superficial fascia 784:Basal keratinocyte 751:Stratum granulosum 183:Thermal insulation 88:H3.12.00.3.01041 1096: 1095: 1092: 1091: 1043: 1042: 948:Inner root sheath 943:Outer root sheath 832: 831: 776:Basement membrane 350:978-0-7817-1668-0 251:Additional images 121: 120: 116: 16:(Redirected from 1116: 931: 930: 890: 889: 865:Membranous layer 761:Malpighian layer 756:Stratum spinosum 729: 728: 709: 702: 695: 686: 685: 681: 658: 657: 639: 615: 609: 602: 596: 595: 555: 546: 545: 497: 488: 487: 461: 437: 422: 421: 411: 371: 362: 361: 359: 357: 338: 328: 322: 321: 319: 318: 304: 280: 266:sebaceous glands 261: 195:Erection of the 143:(piloerection). 127:, also known as 113:edit on Wikidata 110: 30: 29: 21: 1124: 1123: 1119: 1118: 1117: 1115: 1114: 1113: 1099: 1098: 1097: 1088: 1039: 1035:sebaceous gland 1020: 1002: 964: 920: 879: 828: 817:Dermal papillae 798: 770: 746:Stratum lucidum 741:Stratum corneum 718: 713: 666: 661: 616: 612: 603: 599: 556: 549: 498: 491: 438: 425: 372: 365: 355: 353: 351: 329: 325: 316: 314: 306: 305: 298: 294: 287: 281: 272: 262: 253: 245: 233: 221: 209: 207:Sebum excretion 193: 185: 165: 149: 117: 28: 23: 22: 15: 12: 11: 5: 1122: 1112: 1111: 1094: 1093: 1090: 1089: 1087: 1086: 1081: 1076: 1071: 1070: 1069: 1059: 1053: 1051: 1045: 1044: 1041: 1040: 1038: 1037: 1030: 1028: 1022: 1021: 1019: 1018: 1012: 1010: 1004: 1003: 1001: 1000: 995: 990: 985: 980: 974: 972: 966: 965: 963: 962: 961: 960: 958:Huxley's layer 955: 945: 939: 937: 928: 922: 921: 919: 918: 913: 908: 898: 896: 887: 881: 880: 878: 877: 872: 867: 862: 856: 842: 840: 834: 833: 830: 829: 827: 826: 821: 820: 819: 808: 806: 800: 799: 797: 796: 791: 786: 780: 778: 772: 771: 769: 768: 766:Stratum basale 763: 758: 753: 748: 743: 737: 735: 726: 720: 719: 712: 711: 704: 697: 689: 683: 682: 673: 665: 662: 660: 659: 610: 597: 570:(2): 217–222. 547: 512:(1): 151–158. 489: 452:(3): 539–541. 423: 386:(4): 577–589. 363: 349: 323: 295: 293: 290: 289: 288: 282: 275: 273: 263: 256: 252: 249: 244: 241: 232: 229: 220: 217: 208: 205: 192: 189: 184: 181: 164: 161: 148: 145: 133:hair follicles 119: 118: 109: 103: 102: 97: 91: 90: 85: 79: 78: 73: 67: 66: 61: 55: 54: 50: 49: 41: 35: 34: 26: 9: 6: 4: 3: 2: 1121: 1110: 1107: 1106: 1104: 1085: 1082: 1080: 1077: 1075: 1072: 1068: 1065: 1064: 1063: 1060: 1058: 1055: 1054: 1052: 1050: 1046: 1036: 1032: 1031: 1029: 1027: 1023: 1017: 1014: 1013: 1011: 1009: 1005: 999: 998:Hair follicle 996: 994: 991: 989: 986: 984: 981: 979: 976: 975: 973: 971: 967: 959: 956: 954: 953:Henle's layer 951: 950: 949: 946: 944: 941: 940: 938: 936: 932: 929: 927: 923: 917: 914: 912: 909: 907: 903: 900: 899: 897: 895: 891: 888: 886: 882: 876: 873: 871: 868: 866: 863: 860: 857: 855: 851: 847: 844: 843: 841: 839: 835: 825: 822: 818: 815: 814: 813: 810: 809: 807: 805: 801: 795: 792: 790: 789:Lamina lucida 787: 785: 782: 781: 779: 777: 773: 767: 764: 762: 759: 757: 754: 752: 749: 747: 744: 742: 739: 738: 736: 734: 730: 727: 725: 721: 717: 710: 705: 703: 698: 696: 691: 690: 687: 679: 674: 672: 668: 667: 655: 651: 647: 643: 638: 633: 629: 625: 621: 614: 608: 601: 593: 589: 585: 581: 577: 573: 569: 565: 561: 554: 552: 543: 539: 535: 531: 527: 523: 519: 515: 511: 507: 503: 496: 494: 485: 481: 477: 473: 469: 465: 460: 455: 451: 447: 443: 436: 434: 432: 430: 428: 419: 415: 410: 405: 401: 397: 393: 389: 385: 381: 377: 370: 368: 352: 346: 342: 337: 336: 327: 313: 309: 303: 301: 296: 286: 279: 274: 271: 267: 264:Insertion of 260: 255: 254: 248: 240: 238: 228: 226: 225:hair follicle 216: 214: 204: 202: 198: 188: 180: 178: 174: 170: 160: 158: 154: 153:smooth muscle 144: 142: 138: 134: 130: 126: 114: 108: 104: 101: 98: 96: 92: 89: 86: 84: 80: 77: 74: 72: 68: 65: 62: 60: 56: 51: 48: 45: 42: 40: 36: 31: 19: 18:Arrector pili 1109:Hair anatomy 1015: 902:Sweat glands 794:Lamina densa 677: 627: 623: 613: 600: 567: 563: 509: 505: 449: 445: 383: 379: 354:. Retrieved 334: 326: 315:. Retrieved 311: 246: 234: 222: 210: 194: 191:Self defence 186: 166: 150: 128: 124: 122: 64:A16.0.00.024 1084:Hyponychium 1079:Paronychium 1057:Nail matrix 935:Root sheath 894:Skin glands 630:: e70–e72. 285:skin layers 141:goose bumps 53:Identifiers 44:Sympathetic 1074:Eponychium 1062:Nail plate 970:Hair shaft 846:Panniculus 664:References 317:2021-01-21 270:hair shaft 916:Sebaceous 824:Reticular 812:Papillary 733:Epidermis 646:1201-9712 584:0190-9622 526:1447-073X 484:221012408 468:0092-8674 400:0092-8674 201:predators 197:porcupine 147:Structure 1103:Category 654:20207571 592:15280840 542:26307123 534:27473595 476:32763185 418:21335239 163:Function 988:Medulla 978:Cuticle 409:3056115 243:History 237:leprosy 137:mammals 33:Details 1067:Lunula 1008:Muscle 983:Cortex 885:Adnexa 850:Pannus 804:Dermis 652:  644:  590:  582:  540:  532:  524:  482:  474:  466:  416:  406:  398:  356:15 May 347:  1033:Hair 538:S2CID 480:S2CID 292:Notes 268:into 213:sebum 111:[ 100:67821 39:Nerve 1049:Nail 926:Hair 724:Skin 650:PMID 642:ISSN 588:PMID 580:ISSN 530:PMID 522:ISSN 472:PMID 464:ISSN 446:Cell 414:PMID 396:ISSN 380:Cell 358:2011 345:ISBN 173:fear 169:cold 123:The 76:7051 59:TA98 632:doi 572:doi 514:doi 454:doi 450:182 404:PMC 388:doi 384:144 343:–. 135:in 95:FMA 71:TA2 1105:: 904:: 648:. 640:. 628:14 626:. 622:. 586:. 578:. 568:51 566:. 562:. 550:^ 536:. 528:. 520:. 510:92 508:. 504:. 492:^ 478:. 470:. 462:. 448:. 444:. 426:^ 412:. 402:. 394:. 382:. 378:. 366:^ 310:. 299:^ 227:. 203:. 171:, 83:TH 861:) 852:( 848:/ 708:e 701:t 694:v 656:. 634:: 594:. 574:: 544:. 516:: 486:. 456:: 420:. 390:: 360:. 341:1 320:. 115:] 20:)

Index

Arrector pili
Nerve
Sympathetic
postganglionic nerve fibers
TA98
A16.0.00.024
TA2
7051
TH
H3.12.00.3.01041
FMA
67821
Anatomical terms of muscle
edit on Wikidata
hair follicles
mammals
goose bumps
smooth muscle
autonomic nervous system
cold
fear
sympathetic nervous system
porcupine
predators
sebum
hair follicle
leprosy
Insertion of sebaceous glands into hair shaft
sebaceous glands
hair shaft

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