立毛筋
WordNet
- filamentous hairlike growth on a plant; "peach fuzz" (同)fuzz, tomentum
- a filamentous projection or process on an organism
- any of the cylindrical filaments characteristically growing from the epidermis of a mammal; "there is a hair in my soup" (同)pilus
- a covering for the body (or parts of it) consisting of a dense growth of threadlike structures (as on the human head); helps to prevent heat loss; "he combed his hair"; "each hair consists of layers of dead keratinized cells"
- make ones way by force; "He muscled his way into the office"
- animal tissue consisting predominantly of contractile cells (同)muscular_tissue
- one of the contractile organs of the body (同)musculus
- authority or power or force (especially when used in a coercive way); "the senators used their muscle to get the party leader to resign"
PrepTutorEJDIC
- 《所有・所属》…『の』,…のものである,…に属する・《材料・要素》…『でできた』,から成る・《部分》…『の』[『中の』] ・《数量・単位・種類を表す名詞に付いて》…の・《原因・動機》…『で』,のために(because of) ・《主格関係》…『の』,による,によって・《目的格関係》…『を』,の・《同格関係》…『という』・《関係・関連》…『についての』[『の』],の点で・《抽象名詞などと共に》…の[性質をもつ] ・《『It is』+『形』+『of』+『名』+『to』 doの形で,ofの後の名詞を意味上の主語として》・《分離》…『から』・《起原・出所》…『から』[『の』](out of) ・《『名』+『of』+『a』(『an』)+『名』の形で》…のような・《『名』+『of』+『mine』(『yours, his』など独立所有格)の形で》…の…・《時》(1)《副詞句を作って》…に《形容詞句を作って》…の・《時刻》《米》…前(to,《米》before)
- 〈C〉(人間・動物の1本の)『毛』;(植物・昆虫などの)毛 / 〈U〉《集合的に》『髪の毛』,毛,毛髪;(動物の)体毛 / 《a~》1本の毛ほどの量(距離,程度),ごくわずか
- 〈U〉(動物体の組織としての)『筋肉』,筋(きん);〈C〉(体の各部を動かす)筋肉 / 〈U〉力,(特に)筋力,腕力 / 《俗に》(…に)強引に割り込む《+『in on』(『into, through』)+『名』》
- おや,はああ,ああ(驚き・喜び・疑い・ためらいなどを表す声)
- hectare; hectares
- 筋肉の,筋力のある / 力ずくの
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/12/12 18:44:28」(JST)
[Wiki en表示]
| Arrector pili muscle |
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Base of pilosebaceous unit: An arrector pili muscle can be seen as the pink-staining band of tissue at the bottom center and bottom left of image
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| Details |
| Latin |
Musculus arrector pili |
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Nerve
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Sympathetic postganglionic nerve fibers |
| Identifiers |
| Code |
TH H3.12.00.3.01041 |
| TA |
A16.0.00.024 |
| FMA |
67821 |
| Anatomical terminology |
The arrector pili muscles are small muscles attached to hair follicles in mammals. Contraction of these muscles causes the hairs to stand on end,[1] known colloquially as goose bumps.
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 then 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.
Contraction of the muscles has a number of different purposes. Its principal function in the majority of mammals is to provide insulation: air becomes trapped between the erect hairs, helping the animal retain heat. Erection of the porcupine's long, thick hairs causes the animal to become more intimidating, scaring predators. Pressure exerted by the muscle may cause sebum to be forced along the hair follicle towards the surface, protecting the hair.
The effectiveness of the muscles' action in humans has been questioned, as humans have relatively little body hair to allow for thermal insulation.[citation needed]
Additional images
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Insertion of sebaceous glands into hair shaft
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Cross-section of all skin layers
References
- ^ David H. Cormack (1 June 2001). Essential histology. Lippincott Williams & Wilkins. pp. 1–. ISBN 978-0-7817-1668-0. Retrieved 15 May 2011.
- Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web; http://animaldiversity.ummz.umich.edu/site/topics/mammal_anatomy/hair.html
- Burkitt, Young; et al. (1993). Wheater's Functional Histology: a text and colour atlas. Heath. p. 162.
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Skin and related structures
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| Skin |
| Epidermis |
- Stratum corneum
- Stratum lucidum
- Stratum granulosum
- Stratum spinosum
- Stratum basale
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| Basement membrane |
- Basal keratinocyte
- Lamina lucida
- Lamina densa
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| Dermis |
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| Subcutaneous tissue |
- Panniculus/Pannus (Panniculus adiposus
- Panniculus carnosus)
- Membranous layer
- Loose connective tissue
- Superficial fascia
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| Adnexa |
| Skin glands |
- Sweat glands: Apocrine sweat gland
- Eccrine sweat gland
- Sebaceous
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| Hair |
| Root sheath |
- Outer root sheath
- Inner root sheath
- Henle's layer
- Huxley's layer
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| Hair shaft |
- Cuticle
- Cortex
- Medulla
- Bulb with matrix cells
- Hair follicle
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| Muscle |
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| Pilosebaceous unit |
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| Nail |
- Nail matrix
- Nail plate
- Eponychium
- Paronychium
- Hyponychium
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Index of skin
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| Description |
- Anatomy
- Physiology
- Development
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| Disease |
- Infections
- Vesiculobullous
- Dermatitis and eczema
- Papulosquamous
- Urticaria and erythema
- Radiation-related
- Pigmentation
- Mucinoses
- Keratosis, ulcer, atrophy, and necrobiosis
- Vasculitis
- Fat
- Neutrophilic and eosinophilic
- Congenital
- Neoplasms and cancer
- nevi and melanomas
- epidermis
- dermis
- Symptoms and signs
- Terminology
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| Treatment |
- Procedures
- Drugs
- antibiotics
- disinfectants
- emollients and protectives
- itch
- psoriasis
- other
- Wound and ulcer
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Index of skin appendages
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| Description |
- Anatomy
- Physiology
- Development
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| Disease |
- Congenital
- Neoplasms and cancer
- Other
- Symptoms and signs
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| Treatment |
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UpToDate Contents
全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.
English Journal
- Dermatitis Herpetiformis: A Review of Direct Immunofluorescence Findings.
- Barnadas MA1.
- The American Journal of dermatopathology.Am J Dermatopathol.2015 Nov 27. [Epub ahead of print]
- Direct immunofluorescence (DIF) findings in dermatitis herpetiformis (DH) are incompletely defined. The presence and localization of immune reactants in this disorder are reviewed. A retrospective study on 72 biopsies from 71 patients with DH was performed. Deposits of IgG, IgA, IgM, C'3, C1q, and f
- PMID 26630684
- Skin telocytes versus fibroblasts: two distinct dermal cell populations.
- Kang Y1, Zhu Z2, Zheng Y3, Wan W2, Manole CG4,5, Zhang Q1.
- Journal of cellular and molecular medicine.J Cell Mol Med.2015 Nov;19(11):2530-9. doi: 10.1111/jcmm.12671. Epub 2015 Sep 28.
- It is already accepted that telocytes (TCs) represent a new type of interstitial cells in human dermis. In normal skin, TCs have particular spatial relations with different dermal structures such as blood vessels, hair follicles, arrector pili muscles or segments of sebaceous and/or eccrine sweat gl
- PMID 26414534
- Is the eccrine gland an integral, functionally important component of the human scalp pilosebaceous unit?
- Poblet E1, Jiménez-Acosta F2, Hardman JA3, Escario E4, Paus R3,5.
- Experimental dermatology.Exp Dermatol.2015 Oct 29. doi: 10.1111/exd.12889. [Epub ahead of print]
- BACKGROUND: The pilosebaceous unit (PSU) and the eccrine sweat gland (ESG) are classically described as completely independent skin appendages. However, careful inspection of scalp follicular units reveals that the secretory segment of the ESG spatially approximates the hair follicle in a position b
- PMID 26513332
Japanese Journal
- The morphology and origin of the skeletal muscle bundles associated with the human mustache
- KIM Jeong-Nam,LEE Ju-Young,YOO Ja-Young,PAIK Doo-Jin,KOH Ki-Seok,SONG Wu-Chul
- Anatomical science international 87(3), 132-135, 2012-09-01
- NAID 10031167929
- Steady and Temporary Expressions of Smooth Muscle Actin in Hair, Vibrissa, Arrector Pili Muscle, and Other Hair Appendages of Developing Rats
- Morioka Kiyokazu,Arai Mary,Ihara Setsunosuke
- ACTA HISTOCHEMICA ET CYTOCHEMICA 44(3), 141-153, 2011
- … The hair erection muscle, arrector pili, is a kind of smooth muscle located in the mammalian dermis. … The immunohistochemical study using an antibody against smooth muscle alpha actin (SMA) showed that the arrector pili muscle develops approximately 1–2 weeks after birth in dorsal and ventral skin, but thereafter they degenerate. …
- NAID 130000722778
- 服部 友保,高橋 亜由美,田村 敦志,石川 治
- Skin cancer : official organ of
- … Cutaneous leiomyosarcoma arises from the arrector pili muscles of the hair follicle, and is a rare tumor. … We report the clinico-pathological features of a 42-year-old man suffering from a nodule of the right hip. … Histological appearance of the tumor corresponded to cutaneous leiomyosarcoma, showing spindle-shaped atypical myomatous cells arranged in interlacing fascicles that merged into collagenous stroma. …
- NAID 10015755204
Related Links
- mus·cle (mŭs′əl) n. 1. A tissue composed of fibers capable of contracting to effect bodily movement. 2. A contractile organ consisting of a special bundle of muscle tissue, which moves a particular bone, part, or substance of the ...
- Looking for arrector muscle of hair? Find out information about arrector muscle of hair. the contractile tissue that effects the movement of and within the body. Muscle tissue in the higher animals is classified as striated, smooth, or ...
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