IAS meaning in Medical ?

Answer: What is Internal anal sphincter mean?

The internal anal sphincter, IAS, (or sphincter ani internus) is a ring of smooth muscle that surrounds about 2.5–4.0 cm of the anal canal; its inferior border is in contact with, but quite separate from, the external anal sphincter. It is myogenic in nature and playing phasic and tonic state for relaxation and contraction. This myogenic tone is based on Ca2+/Calmodulin/MLCK/RhoA/ROCK signaling cascade pathway. Recent studies suggested, BDNF is the member of the neurotrophin family; having next target for basal IAS and NANC relaxation.

It is about 5 mm thick, and is formed by an aggregation of the involuntary circular fibers of the rectum. Its lower border is about 6 mm from the orifice of the anus.

reference

Full Form	Category
Islamic Republic of Iran Academy of Sciences	Academic & Science
فرهنگستان علوم جمهوري اسلامي ايران	Academic & Science
Indian Archaeological Society	Academic & Science
Intelligent Assistant Systems	Academic & Science
Integral Ad Science	Academic & Science
Illinois Archaeological Survey	Academic & Science
Instrument Air Supply	Academic & Science
International Antiviral Society	Academic & Science
Industry Applications Society	Academic & Science
Académie Islamique des Sciences	Academic & Science
Interdisciplinary Arts and Sciences	Academic & Science
Académie Islamique des Sciences	Academic & Science
Islamic Academy of Sciences	Academic & Science
Academy of Sciences of the Islamic Republic of Iran	Academic & Science
International American School of Warsaw	Academic & Science
Institute of Agricultural Sciences	Academic & Science
Indiana Astronomical Society	Academic & Science
Institute for Advanced Study	Academic & Science
Indian Administrative Studies	Academic & Science
IEEE Industry Applications Society Annual Meeting	Academic & Science
International Accounting Standards	Accounts and Finance
International Accounting Standard	Accounts and Finance
Iasi	Airport Code
IEEE Industrial Applications Society	Associations & Organizations
Institute for Anarchist Studies	Associations & Organizations
Institut Aéronautique et Spatial	Associations & Organizations
Investment Analysts Society	Associations & Organizations
Immunisation Awareness Society	Associations & Organizations
Institute of the Aeronautical Sciences	Associations & Organizations
Iowa Archeological Society	Associations & Organizations
Iranian Arachnological Society	Associations & Organizations
Integrated Accounting Systems	Banking
Insolvency Advisory Service	Business
Installment Activities Statement	Business
International All Sports	Business
In-line Air Separator	Business
International Approval Services	Business
Insurance Accounting System	Business
International Association of Sufism	Business
Internationally Accepted Standard	Business
Innovative Aviation Services	Business
Integrated Asset Services	Business
Industrial Automation Solutions, Inc.	Business
Island Aviation Services, Limited	Business
Item Assembly Structure	Business
Inertial Active Suspension	Chemistry
Islam Awareness Series	Community
International Association of Sedimentologists	Community
International Association of Scientology	Community
Independent Art Structures	Community
Ideas, Action, and Success	Community
International AIDS Society	Community
Irish Association for Suicidology	Community
International Association of Scientologists	Community
Interdisciplinary Arts Symposium	Community
Industrial Applications Society (IEEE)	Computer and Networking
Insert After Sequence	Computer Assembly Language
Immediate Access Storage	Computer Hardware
Internet Authentication Service	Computing
Integrated Access Service	Computing
Image Acquisition System	Computing
Internet Access Server	Computing
Institute of Advanced Study	Computing
Integrated Access Server	Computing
Internet Web Application Server	Computing
Internet Acronym Server	Computing
Industrial Applications Society	Computing
Information Access Service	Computing
Interactive Application System	Computing
Intel Audio Studio	Computing
Intelligent Application Switching	Computing
Image Authentication System	Computing
i-Planet Application Server	Computing
Implementation Agreements	Computing
Intel Approved Supplier	Computing
Intel Attestation Service	Computing
Internet Analysis System	Computing
Internet Application Server	Computing
Internet Access Service	Computing
Internet Access System	Computing
Intergrated Automation System	Electronics
Initial Action Services	General
Independent Appeals Service	General
Individuals After Sarkar	General
Invasive Alien Species	General
Intermodulation Analysis System	General
Integrated Audio Systems	General
Integrated Access Switch	General
I Agree Sir	General
Industrial Automation Show	General
Integrated Archive Systems	General
International Accreditation Service	General
Immediate Access Store	General
Indian Administrative Services	General
Internal Airtightness System	General
Improvement of Agricultural Statistics	General
International Asset Systems	General
Individual Assignment System	General
Impact Assessment System	General
Inertia Active System	General
Integral Active Steering	General
Inlet Air Solenoid	General
International Auto Salon	General
Intersection Assistant System	General
International Auto Show	General
Instituto Ayrton Senna	General
Intelligent Access System	General
Inter Axle Shaft Angle	General
Intake Air System	General
Idle Air Stepper	General
Idle Air Solenoid	General
Indonesia Automotive Society	General
Italdesign Automobili Speciali	General
Introduction to Automobile Service	General
Indianapolis Auto Show	General
Instructional Assistants Seattletimes	General
Integrated Administrative System	General
Institute of Annoying Sillybillies	General
Integrated Analysis System	General
Intelligent Autonomous Systems	General
Institute of Alcohol Studies	Governmental
Internal Audit Service	Governmental
Institute for Advanced Studies	Governmental
Izquierda Asturiana	Governmental
Inmate Assignment System	Governmental
Institut d'Astrophysique Spatiale, France	Governmental
Integrated Acquisition System	Governmental
Indian Administrative System	Governmental
International Atherosclerosis Society	International
Internet Addiction Syndrome	Internet
Indian Academy of Sciences	Karnataka Government
Internal anal sphincter	Medical
International Aviculturists Society	Medical
Inter-Atrial Septum	Medical
I Am Sick	Messaging
Increased Attack Speed	Military and Defence
Intelligence Analysis System	Military and Defence
International Armaments Strategy	Military and Defence
Indian Administrative Service	Ministry of Personnel
Internet Authentication Server	Networking
Image Analysis & Stereology	News & Entertainment
Institute of African Studies	Regional
Independent African States	Regional
Interactive Advisory Software	Softwares
Inertial Active System	Space Science
Impact Assessment Sheet	Space Science
Indicated Airspeed	Space Science
Integrated Avionics System	Space Science
Indoor Action Sports	Sports
Iași International Airport	Transport & Travel