Ventral ramus of spinal nerve

Ventral ramus
The formation of the spinal nerve from the dorsal and ventral roots. (Ventral ramus labeled at lower left.)
Details
Identifiers
Latinramus anterior nervi spinalis
TA98A14.2.00.034
TA26147
FMA5982
Anatomical terms of neuroanatomy

The ventral ramus (pl.: rami) (Latin for 'branch') is the anterior division of a spinal nerve. The ventral rami supply the antero-lateral parts of the trunk and the limbs. They are mainly larger than the dorsal rami.

Shortly after a spinal nerve exits the intervertebral foramen, it branches into the dorsal ramus, the ventral ramus, and the ramus communicans. Each of these three structures carries both sensory and motor information. Each spinal nerve is a mixed nerve that carries both sensory and motor information, via efferent and afferent nerve fibers—ultimately via the motor cortex in the frontal lobe and to somatosensory cortex in the parietal lobe—but also through the phenomenon of reflex.

In the thoracic region they remain distinct from each other and each innervates a narrow strip of muscle and skin along the sides, chest, ribs, and abdominal wall. These rami are called the intercostal nerves. In regions other than the thoracic, ventral rami converge with each other to form networks of nerves called nerve plexuses. Within each plexus, fibers from the various ventral rami branch and become redistributed so that each nerve exiting the plexus has fibers from several different spinal nerves. One advantage to having plexes is that damage to a single spinal nerve will not completely paralyze a limb.

There are four main plexuses formed by the ventral rami: the cervical plexus contains ventral rami from spinal nerves C1–C4. Branches of the cervical plexus, which include the phrenic nerve, innervate muscles of the neck, the diaphragm, and the skin of the neck and upper chest. The brachial plexus contains ventral rami from spinal nerves C5–T1. This plexus innervates the pectoral girdle and upper limb. The lumbar plexus contains ventral rami from spinal nerves L1–L4. The sacral plexus contains ventral rami from spinal nerves L4–S4. The lumbar and sacral plexuses innervate the pelvic girdle and lower limbs.

Ventral rami, including the sinuvertebral nerve branches, also supply structures anterior to the facet joint, including the vertebral bodies, the discs and their ligaments, and joins other spinal nerves to form the lumbosacral plexus.

References

Public domain This article incorporates text in the public domain from page 925 of the 20th edition of Gray's Anatomy (1918)

Read other articles:

Bokholt-Hanredder

Bokholt-Hanredder. Bokholt-Hanredder adalah kota yang terletak di distrik Pinneberg, Schleswig-Holstein, Jerman. Kota Bokholt-Hanredder memiliki luas sebesar 8.56 km². Bokholt-Hanredder pada tahun 2006, memiliki penduduk sebanyak 1.281 jiwa. lbsKota dan kotamadya di Pinneberg (distrik) Appen Barmstedt Bevern Bilsen Bokel Bokholt-Hanredder Bönningstedt Borstel-Hohenraden Brande-Hörnerkirchen Bullenkuhlen Ellerbek Ellerhoop Elmshorn Groß Nordende Groß Offenseth-Aspern Halstenbek Hasel...

 

Ceylon tea

Tea brand and historic term Ceylon teaLion Logo of pure Ceylon teaProduct typeTeaOwnerSri Lanka Tea BoardCountrySri LankaIntroduced1867MarketsMiddle East, Russia, China, European Union, United States, JapanPrevious ownersTea Propaganda BoardTaglineCeylon tea Symbol of qualityWebsitepureceylontea.com Ceylon tea is both the brand of tea which is produced in Sri Lanka and a historic term describing tea from that land. Ceylon tea has been described as not only a geographical descriptor but also a...

 

Территория Гавайи

Эту страницу предлагается переименовать.Пояснение причин и обсуждение — на странице Википедия:К переименованию/21 декабря 2020. Пожалуйста, основывайте свои аргументы на правилах именования статей. Не удаляйте шаблон до подведения итога обсуждения. Переименовать в предл...

المركز الجامعي-ميلة

المركز الجامعي عبد الحفيظ بوالصوف (ميلة) الشعار LOGO CUM.png معلومات التأسيس 2008 النوع جامعة عامة (مختلطة) التوجهات الدراسية كل الشعب المعاهد 3 معاهد الكليات العلوم الاقتصادية والتجارية وعلوم التسيير، العلوم والتكنولوجيا، الآداب واللغات الشُعب العديد من الشعب الموقع الجغرافي �...

 

Portile

Portile Stato Italia Regione Emilia-Romagna Provincia Modena Città Modena Circoscrizione3 Abitanti828 ab. Patrono San Rufino Giorno festivo26 agosto Coordinate: 44°34′52.03″N 10°56′16.01″E / 44.58112°N 10.93778°E44.58112; 10.93778 Portile (Purtil, in dialetto modenese) è una frazione[1] di Modena di 828 abitanti. È situato a 7 km a sud del Centro, sulla Strada provinciale 17. Indice 1 Storia 2 Origine del nome 3 Note 4 Bibliografia 5 Altri...

 

Hard (song)

2009 single by Rihanna HardSingle by Rihanna featuring Jeezyfrom the album Rated R ReleasedNovember 10, 2009 (2009-11-10)Recorded2009StudioStudios Devout (Paris, France); The Boom Boom Room (Burbank, California); Legacy Recording Studios (New York City, New York); Triangle Sound Studios (Atlanta, Georgia)GenreHip hopLength4:10Label Def Jam SRP Songwriter(s) Terius Nash Christopher Stewart Robyn Fenty Jay Jenkins Producer(s) Tricky Stewart The-Dream Rihanna singles chronolog...

Saint Helena

Saint Helena Bendera Lambang Semboyan: Loyal and UnshakeableLagu kebangsaan: God Save the King (Resmi)My Saint Helena Island (tidak resmi)Ibu kotaJamestownBahasa resmiInggrisKelompok etnik 50% Afrika, 25% Eropa, 25% Cina[1]PemerintahanBagian dari Saint Helena, Ascension, dan Tristan da Cunha• Raja Charles III• Gubernur Nigel Phillips Pendirian• Piagam disahkan 1659 Luas - Total122 km2Populasi - Sensus Penduduk 20214,439[...

 

Central Catholic High School (Massachusetts)

This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Central Catholic High School Massachusetts – news · newspapers · books · scholar · JSTOR (June 2012) (Learn how and when to remove this message) Private, coeducational school in Lawrence, , Massachusetts, United StatesCentral Catholic High SchoolCentral C...

 

Jack Colback

English footballer (born 1989) Jack Colback Colback playing for Sunderland in 2012Personal informationFull name Jack Raymond Colback[1]Date of birth (1989-10-24) 24 October 1989 (age 34)[2]Place of birth Newcastle upon Tyne, EnglandHeight 5 ft 10 in (1.77 m)[3]Position(s) Defensive midfielderTeam informationCurrent team Queens Park RangersNumber 4Youth career1999–2008 SunderlandSenior career*Years Team Apps (Gls)2008–2014 Sunderland 115 (4)2009�...

Australian Greens

Australian political party This article is about the federal Greens party. For the state and territory parties, see List of member parties of the Australian Greens. Australian Greens LeaderAdam BandtDeputy LeaderMehreen FaruqiSenate LeaderLarissa WatersDeputy Senate LeaderVacant[1][a]Founded1992; 32 years ago (1992)HeadquartersBraddon, Australian Capital Territory[2]NewspaperGreen Magazine[3]Think tankThe Green InstituteYouth wingYoung GreensM...

 

Marmora (Piémont)

Cet article est une ébauche concernant une localité italienne et le Piémont. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Pour les articles homonymes, voir Marmora. Marmora Armoiries Administration Pays Italie Région Piémont  Province Coni  Code postal 12020 Code ISTAT 004119 Préfixe tel. 0171 Démographie Population 77 hab. (31-12-2010[1]) Densité 1,9 hab./km2 Géographie Coordonn�...

 

Ryota Hama

Ryota HamaHama in 2018.Born (1979-11-21) November 21, 1979 (age 44)[1]Ibaraki, Osaka, Japan[1]Professional wrestling careerRing name(s)Big Sushi[2]Captain All Japan[3]Mad Paulie[4]Ryota HamaS1 Mask[5]Yapper Man #4Billed height1.75 m (5 ft 9 in)Billed weight226 kg (498 lb)Trained byKaz HayashiKohei SuwamaDebutNovember 3, 2008[1] Ryota Hama (濱 亮太, Hama Ryōta, ring name: 浜 亮太)[6] (born Nove...

Dorothy Mackaill

Dorothy MackaillPublicity tahun, 1924Lahir(1903-03-04)4 Maret 1903Sculcoates, Hull, Yorkshire, England, UKMeninggal12 Agustus 1990(1990-08-12) (umur 87)Honolulu, Hawaii, A.S.Warga negaraBritishAmericanPekerjaanAktrisTahun aktif1920–1937; 1976–1980Suami/istriLothar Mendes ​ ​(m. 1926; c. 1928)​ Neil Miller ​ ​(m. 1931; c. 1934)​ Harold Patterson ​ ​(m. 1947...

 

蔣中正

蔣中正中華民國總統府官方肖像（摄于1955年） 中華民國第1－5任總統選舉：1948、1954、1960、1966、1972任期1950年3月1日復行視事—1975年4月5日副总统李宗仁陳誠嚴家淦前任李宗仁 → 閻錫山（代理）蔣中正（正任）继任嚴家淦任期1948年5月20日—1949年1月21日下野副总统李宗仁前任首任继任李宗仁（代理）蔣中正（正任） 中華民國第2、4任國民政府委員會主席任期1943年8月...

 

Shia Islam

Second-largest branch of Islam Shia and Shias redirect here. For other uses, see Shia (disambiguation). Part of a series onShia Islam Beliefs and practices Monotheism Holy Books Prophethood Succession to Muhammad Imamate Ismaili Twelver Zaydi Angels Judgment Day Mourning of Muharram Intercession Clergy The Four Companions Arbaʽeen Pilgrimage Days of remembrance Ashura Arba'een Mawlid Eid al-Fitr Eid al-Adha Eid al-Ghadir Mourning of Muharram Omar Koshan History Verse of purification Two thin...

Vocea Basarabiei

This article is about the radio station. For the anti-Soviet group of the 1940s, see Vocea Basarabiei (anti-Soviet group). Vocea Basarabiei Voice of BessarabiaTypeRadio networkCountryMoldovaAvailabilityNationalLicence areaMoldovaOwnerEuro NovaKey peopleValeriu SaharneanuLaunch date18 June 2000Official websitevoceabasarabiei.md Vocea Basarabiei (English: Voice of Bessarabia) is a Romanian language radio station in Moldova. History Vocea Basarabiei was launched on 18 June 2000 in Nisporeni. The...

 

List of Japanese condiments

This is a list of Japanese condiments by type. Basic Mirin A bowl of mirin Main article: Mirin Mirin is an essential condiment used in Japanese cuisine.[1] It is a kind of rice wine similar to sake, but with a lower alcohol content—14%[2] instead of 20%. There are three general types. The first is hon mirin (lit. true mirin),[3] which contains alcohol. The second is shio mirin, which contains alcohol as well as 1.5% salt[1] to avoid alcohol tax. The third is...

 

Kassandra (TV series)

Venezuelan television series KassandraGenreTelenovelaRomanceDramaCreated byDelia FialloWritten byDelia FialloDirected byGrazio D'AngeloOlegario BarreraStarringCoraima TorresOsvaldo Ríos Henry SotoTheme music composerJose Antonio BordellOpening themeKassandra by Jose Antonio BordellCountry of originVenezuelaOriginal languageSpanishNo. of episodes150ProductionExecutive producersOmar PinAlberto GiaroccoProducerHernando FariaProduction locationsMucuchíes, MéridaRunning time1992-1993Production ...

Paper shredder

Device used to cut paper into pieces This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Paper shredder – news · newspapers · books · scholar · JSTOR (May 2021...

 

Borough of Runnymede

51°23′42″N 0°32′28″W / 51.395°N 0.541°W / 51.395; -0.541 Borough and non-metropolitan district in EnglandBorough of RunnymedeBorough and non-metropolitan districtRunnymede Bridge, carrying the A30 and M25 over the River Thames near Egham Coat of armsMotto: In Freedom We ServeRunnymede shown within SurreySovereign stateUnited KingdomConstituent countryEnglandRegionSouth East EnglandNon-metropolitan countySurreyStatusNon-metropolitan districtAdmin HQAdd...