This site uses cookies. By continuing to browse the site, you are agreeing to our use of cookies. More information about cookies is available in our privacy policy Got it

Blausen Menu
Search
Current language eng

All Topics

  • Anatomy & Physiology
  • Cancer
  • Cellular
  • Chemistry
  • Circulatory
  • Conditions
  • Digestive
  • Drug
  • Ear
  • Endocrine
  • Eye
  • Immune
  • Integumentary (Skin)
  • Muscular
  • Neurology
  • Orthopedic
  • Pediatric
  • Reproductive
  • Respiratory
  • Skeletal
  • Tests and Treatments
  • Urinary

Explore

  • 3D Body System

About Us

  • Blausen Medical
  • Products And Services
  • Contact Us
Select language
  • Arabic
  • Chinese
  • Chinese (Cantonese)
  • Danish
  • Dutch - The Netherlands
  • English (Great Britain)
  • French
  • German
  • Hungarian
  • Italian
  • Japanese
  • Korean
  • Norwegian
  • Portuguese - Brazil
  • Portuguese - Portugal
  • Romanian
  • Russian
  • Spanish
  • Spanish (Latin America)
  • Swedish
  • Turkish

Videos

 

Angiotensin II Receptor Antagonists

3775
Share
Topics:
  • Circulatory
  • Drug
  • Tests and Treatments
PDF:
  • View disclaimer
GoGoMeds

The heart is a beating muscle that pumps blood to the body through a network of arteries. The force of the blood is constantly putting pressure on the inside walls of blood vessels. This is known as “blood pressure”. Blood pressure is measured to evaluate the force and amount of blood being pumped from the heart, as well as the flexibility and condition of the vessels. Many different factors can affect blood pressure including: - the levels of hormones in the body - water and salt content - and the condition of the heart, kidneys, nervous system, and blood vessels. Blood pressure is closely regulated by chemicals in the body that change the diameter of the blood vessels depending on the needs of the body: widening to let more blood flow or narrowing to allow less blood to flow. For example, a chemical called “angiotensin II” helps regulate blood vessel narrowing. Angiotensin II is created through a series of chemical reactions that take place in the body. In order to cause vessel narrowing, angiotensin II binds to proteins, called AT1 receptors, on the surface of smooth muscles within the blood vessels. Once bound, the smooth muscle cells tighten, decreasing the width of the blood vessel. Too much angiotensin II circulating in the bloodstream results in prolonged vessel tightening, or high blood pressure. Hypertension, or high blood pressure, is a condition where blood pressure remains abnormally high. If left untreated, hypertension can seriously damage the heart and blood vessels by adding to their workload. This can result in congestive heart failure, stroke, heart attack, kidney damage, aneurysms, or even death. Many factors can cause blood pressure to remain elevated, specifically conditions that cause narrowing of blood vessels. To treat hypertension, a class of Antihypertensive medications called “angiotensin II receptor antagonists” may be prescribed. By attaching to AT1 receptors on smooth muscle cells lining the blood vessels, this drug blocks angiotensin II from binding. This action prevents angiotensin II from causing the smooth muscle cells to contract. The end result is that angiotensin II receptor antagonists prevent blood vessels from narrowing, thereby keeping a normal blood pressure. There are several different brands of angiotensin II receptor antagonists. As with all medications, adverse effects may develop while taking this medication. It is important to always consult with your doctor about high blood pressure medications.

Duration: 03:06

Published: 11/19/2015

Related videos

ACE Inhibitors 02:39 02:39

ACE Inhibitors

Topics: Circulatory, Drug, Tests and Treatments
Overview of Hypertension 00:21 00:21

Overview of Hypertension

Topics: Anatomy & Physiology, Circulatory, Conditions
Pulmonary Hypertension 01:14 01:14

Pulmonary Hypertension

Topics: Circulatory, Conditions, Respiratory
Alpha-Adrenergic Blockers 02:55 02:55

Alpha-Adrenergic Blockers

Topics: Circulatory, Drug, Tests and Treatments
0

Other videos

Heart and Coronary Arteries 00:22 00:22

Heart and Coronary Arteries

Topics: Anatomy & Physiology, Circulatory
Levels of Organization (Muscular System) 00:45 00:45

Levels of Organization (Muscular System)

Topics: Anatomy & Physiology, Circulatory
Centrifuge 00:10 00:10

Centrifuge

Topics: Anatomy & Physiology, Circulatory
Male with Systemic Circuit 00:19 00:19

Male with Systemic Circuit

Topics: Anatomy & Physiology, Circulatory
Inside a Continuous Capillary 00:16 00:16

Inside a Continuous Capillary

Topics: Anatomy & Physiology, Circulatory
0
Filter by Topics:
  • All
  • Circulatory
  • Drug
  • Tests and Treatments
ACE Inhibitors 02:39 02:39

ACE Inhibitors

The heart is a beating muscle that pumps blood to the body through a network of arteries. The force of the blood is constantly putting pressure on the inside walls of blood vessels...
Abdominal Aneurysm 00:57 00:57

Abdominal Aneurysm

The aorta is the main artery of the circulatory system. Its function is to carry oxygen-rich blood from the heart to the rest of the body. It is divided into two main sections; the...
Abnormal Hemostasis: Central Venous Access Device Clot 01:29 01:29

Abnormal Hemostasis: Central Venous Access Device Clot

When central venous access devices are inserted into the bloodstream, their surface becomes coated with fibrin and other circulating plasma proteins. In most short term situations,...
Abnormal Hemostasis: Embolus Causes a Stroke 00:33 00:33

Abnormal Hemostasis: Embolus Causes a Stroke

The vertebral arteries are two major arteries supplying the brain. They pass through small openings in the cervical vertebrae called the transverse foramen. If the vertebral artery...
Abnormal Hemostasis: Overview of the Clotting Process 00:44 00:44

Abnormal Hemostasis: Overview of the Clotting Process

While blood clots are essential to the repair of injured tissues, clots can also put patients at risk of developing thrombosis, that may result in a heart attack or an ischemic str...
Adrenal Corticosteroids 01:40 01:40

Adrenal Corticosteroids

The adrenal glands are part of the endocrine system, which regulates hormone levels in the body. They are small, pyramid-shaped glands that rest on the top of each kidney. The adre...
See More
340
 
Blausen

Blausen Medical
Scientific and Medical Animations

Copyright ©2021 ALL RIGHTS RESERVED
Disclaimer
Privacy Policy

Explore:

  • 3D Body System

About Us:

  • Blausen Medical
  • Products And Services
  • Contact Us

We're social

Stay connected with all of the latest
on your favorite social media platform.

  • Facebook
  • Google plus
  • Twitter
  • Youtube
  • LinkedIn