WordNet

an automatic instinctive unlearned reaction to a stimulus (同)reflex response, reflex action, instinctive reflex, innate reflex, inborn reflex, unconditioned_reflex, physiological reaction
the muscles of the abdomen (同)abdominal_muscle, ab
of or relating to or near the abdomen; "abdominal muscles"
(of leaves) bent downward and outward more than 90 degrees

PrepTutorEJDIC

反射(刺激に対する無意識の反応) / 《複数形で》反射的な動き / (光などの)反射,反射光;映像 / 反射性の / (カメラが)レフ鋼の,反射型の
(比較変化なし)腹の,腹部の

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/08/29 14:33:58」(JST)

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An abdominal reflex is a superficial neurological reflex stimulated by stroking of the abdomen around the umbilicus. It can be helpful in determining the level of lesion in a neurology case. Being a superficial reflex, it is polysynaptic.^[1]

Procedure and components

Make the subject lie down comfortably on a bed in the supine position. Uncover the abdomen and see that his abdominal muscles are well relaxed. With a blunt object gently stroke on the abdominal skin from lateral to the medial aspect in all four quadrants. Observe the contraction of the abdominal muscles resulting in deviation of umbilicus towards the area stimulated. A normal positive response usually involves a contraction of the abdominal muscles, and the umbilicus moving towards the source of the stimulation. ^[2]

Roots involved

Thoracic 7th - 12th segments are involved ^[3]

Absent abdominal reflex

Abdominal reflex is noted as either present or absent. An absent response can be physiological. Physiological absent response can be due to obesity, tolerance, children, multiparous lax abdominal wall. Pathological absence can be due to

Multiple sclerosis
Motor neuron disease
Neurogenic bladder
Brown-Séquard syndrome
Chiari malformations

^[4]

Evolutionary significance

The local contraction of the abdominal muscles to an abdominal sensory stimulus was to protect the internal viscera from damage. ^[5]

References

^ "Dartmouth college". Retrieved 5 February 2013.
^ "Abdominal Reflex".
^ "Dartmouth college". Retrieved 5 February 2013.
^ "Absent Abdominal Reflex". Retrieved 5 February 2013.
^ "Abdominal Reflex Evolutionary Significance". Retrieved 5 February 2013.

UpToDate Contents

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1. 成人における詳細な神経学的検査 the detailed neurologic examination in adults
2. 思春期特発性側弯症の臨床的特徴、評価および診断 clinical features evaluation and diagnosis of adolescent idiopathic scoliosis
3. 新生児の神経学的検査 neurological examination of the newborn
4. 脳死の診断 diagnosis of brain death

English Journal

Influence of delayed muscle reflexes on spinal stability: Model-based predictions allow alternative interpretations of experimental data.

Liebetrau A, Puta C, Anders C, de Lussanet MH, Wagner H.SourceDepartment of Motion Science, Westfälische Wilhelms-Universität Münster, Horstmarer Landweg 62b, Münster D-48149, Germany; Otto Creutzfeldt Center for Cognitive and Behavioral Neuroscience, Westfälische Wilhelms-Universität Münster, Münster D-48149, Germany; Department of Sports Medicine and Health Promotion, Friedrich-Schiller-Universität Jena, Wöllnitzer Straße 42, Jena D-07749, Germany; Center for Interdisciplinary Prevention of Diseases related to Professional Activities, Friedrich-Schiller-Universität, Jena D-07743, Germany.
Human movement science.Hum Mov Sci.2013 Jul 31. pii: S0167-9457(13)00060-2. doi: 10.1016/j.humov.2013.03.006. [Epub ahead of print]
Model-based calculations indicate that reflex delay and reflex gain are both important for spinal stability. Experimental results demonstrate that chronic low back pain is associated with delayed muscle reflex responses of trunk muscles. The aim of the present study was to analyze the influence of s
PMID 23915574

Anxiety behavior is reduced, and physical growth is improved in the progeny of rat dams that consumed lipids from goat milk: An elevated plus maze analysis.

Soares JK, de Melo AP, Medeiros MC, Queiroga RC, Bomfim MA, Santiago EC, Guedes RC.SourceLaboratório de Fisiologia da Nutrição Naíde Teodósio, Dept. Nutrição, Universidade Federal de Pernambuco, Recife, PE 50670-901, Brazil.
Neuroscience letters.Neurosci Lett.2013 Jul 31. pii: S0304-3940(13)00674-5. doi: 10.1016/j.neulet.2013.07.028. [Epub ahead of print]
The goat milk contains conjugated linoleic acid (CLA), which can influence physical growth and brain development. This study investigated the impact of a diet containing goat milk fat (GMF) on physical parameters of gestating (G) and/or lactating (L) rat dams, and their progeny's physical growth, an
PMID 23916660

Antinociceptive effect of berberine on visceral hypersensitivity in rats.

Tang QL, Lai ML, Zhong YF, Wang AM, Su JK, Zhang MQ.SourceQing-Lin Tang, Min-Ling Lai, Yuan-Fu Zhong, Ai-Min Wang, Jun-Kai Su, Ming-Qing Zhang, Department of Gastroenterology, 175 Hospital of PLA, Affiliated Southeast Hospital of Xiamen University, Zhangzhou 363000, Fujian Province, China.
World journal of gastroenterology : WJG.World J Gastroenterol.2013 Jul 28;19(28):4582-9. doi: 10.3748/wjg.v19.i28.4582.
AIM: To assess the protective effect of berberine administration and the role of nitric oxide (NO) in visceral hypersensitivity.METHODS: Fifty male Sprague-Dawley rats were randomly assigned to five groups. An inflammatory bowel disease model was induced in rats by intracolonic instillation of 1 mL
PMID 23901236

Japanese Journal

前腕創縫合時の迷走神経反射が誘因と考えられた非閉塞性腸間膜虚血症の1例

石岡興平,高済峯,西和田敏,向川智英,石川博文,渡辺明彦
日本臨床外科学会雑誌 75(11), 3083-3087, 2014
症例は74歳，男性．ガラスで左前腕を受傷し，当院を受診した．局所麻酔下に約8cmの創部を縫合した．縫合後に迷走神経反射による血圧低下をきたしたため，輸液を行いながら経過観察していたが，約7時間後に下血と腹膜刺激症状を伴う腹痛とともにショック状態となった．循環管理を行い，原因精査のため腹部造影CTを施行したところ，血管閉塞のない腸管血流不全を認めたため，非閉塞性腸間膜虚血症を疑い，緊急手術を行った． …
NAID 130005072857

キアリ1型奇形と脊髄空洞症をともなう側彎症の検討

音羽学,冨永博之,棈松昌彦,田邊史,永吉隆作,山元拓哉,井尻幸成,米和徳,小宮節郎
整形外科と災害外科 63(3), 494-497, 2014
（はじめに）キアリ1型奇形（以下キアリ奇形）および脊髄空洞症（以下空洞症）を合併した側彎症について検討した．（対象と方法）症例は8（男性3，女性5）例で初診時平均年齢は8.1歳である．診断された時期，神経学的所見，施行術式，画像所見について検討した．（結果）腹壁反射の異常は7例に認めた．キアリ奇形と空洞症の診断まで初診後4年以上経過したものが4例あった．10歳以降に大孔拡大術あるいはシャント術を施 …
NAID 130004713167

急激な転帰をとった外腸骨動脈結腸瘻の1例 : 救命のために求められることは?

河野文彰,水野隆之,川越勝也,中村都英,鬼塚敏男
日本腹部救急医学会雑誌 = Journal of abdominal
症例は53歳，男性。骨盤部後腹膜腫瘍の局所再発で腫瘍摘出が施行された。術後12日目に突然の大量下血でショック状態に陥った。急速輸液を行ったがショックを離脱できず，下顎呼吸および対光反射も微弱になったため心肺蘇生が開始された。濃厚赤血球の急速輸血で一時状態の改善がえられ血管造影検査が施行され，左外腸骨動脈から腸管内へextravasationが認められ左外腸骨動脈腸管瘻と診断しcovered ste …
NAID 10031170953