Skip to main content
        
        U.S. flag
                An official website of the United States government
                    Here’s how you know
                Here’s how you know**Official websites use .gov**
                        
                        A **.gov** website belongs to an official government organization in the United States.
            **Secure .gov websites use HTTPS**
                        
                        A **lock** (
                        Locked padlock icon
                        ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.Search for Information from NIDDK
            
            Entire Site
                Research & Funding
                Health Information
                News
                About NIDDKSearch



Home
            Research & Funding
                                Expand Research & Funding
                                Current Funding Opportunities
                                                    Research Programs & Contacts
                                                    Human Subjects Research
                                                    Funding Process
                                            Research Training & Career Development
                                                    Funded Grants & Grant History
                                                    Research Resources
                                            Research at NIDDK
                                                    Technology Advancement & Transfer
                                                    Meetings & Workshops
                        Health Information
                                Expand Health Information
                                Health Topics
                                                                                                    Diabetes
                                                    Digestive Diseases
                                                    Kidney Disease
                                                    Weight Management
                                                    Liver Disease
                                                    Urologic Diseases
                                                    Endocrine Diseases
                                                    Diet & Nutrition
                                                    Blood Diseases
                                                    Diagnostic Tests
                                            La información de la salud en español
                                                    Health Statistics
                                                    Healthy Moments Radio Broadcast
                                                    Clinical Trials
                                            For Health Professionals
                                                    Diabetes Discoveries & Practice Blog
                                                    Community Health & Outreach
                        News
                                Expand News
                                News Archive
                                                    For Reporters
                                            Meetings & Workshops
                                                    Media Library
                                            Follow Us
                        About NIDDK
                                Expand About NIDDK
                                Meet the Director
                                                    Offices & Divisions
                                                    Staff Directory
                                                    Budget & Legislative Information
                                            Advisory & Coordinating Committees
                                                    Strategic Plans & Reports
                                                    Research Areas
                                                    FAQs
                                            Jobs at NIDDK
                                                    Visit Us
                                                    Contact Us Dictionary Definition: blood vessels
blood vessels
                        
                        Tubes that carry blood to and from all parts of your body. The three main types of blood vessels are arteries, capillaries, and veins. Contact Us
**Hours:** 8:30 a.m. to 5 p.m. ET, Monday - Friday**Email:** healthinfo@niddk.nih.gov**Phone:** +1-800-860-8747**TTY:** +711
Chat
Live Chat Available8:30 a.m - 5 p.m. ETMonday - Friday
Follow Us
LinkedIn
X
Facebook
YouTube
InstagramNIH... Turning Discovery Into Health ®
Privacy Policy
    Freedom of Information Act
    Accessibility
    Disclaimers
    Copyright
    Vulnerability Disclosure Policy
Site Map
    For Staff Only
    Get Email Updates
U.S. Department of Health and Human Services
    National Institutes of Health