Skip to Main Navigation Skip to Page Content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

  • Calendar & Events
  • News & Media
  • Get Involved
  • Support
National Toxicology Program
National Toxicology Program - U.S. Department of Health and Human Services

Rodent Ultrastructure Atlas

A guide for organ ultrastructure

  • Menu
  • Search
  • Home
  • Guide to Use the Atlas
  • Tissue Preparation Methods
  • Contributors
  • Contact Us
  1. Home
  2. Data & Resources
  3. Rodent Ultrastructure Atlas - National Toxicology Program
  4. Respiratory System
  • Atlas Home
  • Alimentary System
    • Esophagus
    • Large Intestine
    • Pancreas
    • Small Intestine
    • Stomach
    • Tongue
  • Endocrine System
    • Adrenal Gland
    • Parathyroid Gland
    • Pituitary Gland
    • Thyroid Gland
  • Hepatobiliary System
    • Liver
  • Immune System
    • Lymph Node, Mesenteric
    • Spleen
    • Thymus
  • Musculoskeletal System
    • Bone
    • Muscle
    • Tendon
  • Nervous System
    • Spinal Cord
  • Reproductive System, Female
    • Cervix
    • Ovary
    • Oviduct
    • Uterus
    • Vagina
  • Reproductive System, Male
    • Epididymis
    • Prostate
    • Testis
  • Respiratory System
    • Lung
    • Trachea
  • Special Senses System
    • Eye
    • Lacrimal Gland
  • Urinary System
    • Kidney
    • Urinary Bladder

Respiratory System

EM of normal lung
Lung
EM of normal trachea
Trachea
Back to Top
Web page last updated onLast updated October 22, 2021
Calendar & Events
  • Upcoming Events
  • BSC Meetings
  • Expert Panels
  • NICEATM Meetings
  • SACATM Meetings
  • Webinars & Workshops
  • Past Events
News & Media
  • FAQs & Fact Sheets
  • Federal Register Notices
  • Media Inquiries
  • News
  • NTP Newsletter Archives
  • Public Health Impact
Get Involved
  • Contact Us
  • Join the Expert Directory
  • Nominate to NTP
  • Postdoc Training at NIEHS
  • Postdoc Training at NCTR
  • Postdoc Training at NIOSH
  • Public Comments
  • Subscribe to News Updates
Support
  • Accessibility Information
  • Acronyms & Abbreviations
  • Search Help
  • Site Map
  • Visiting NTP
  • Web Policies

USA.gov is the U.S. government's official web portal to all federal, state, and local government web resources and servicesUSA.gov is the U.S. government's official web portal to all federal, state, and local government web resources and services U.S. Department of Health and Human ServicesU.S. Department of Health and Human Services
  • Freedom of Information Act
  • Inspector General
  • HHS Vulnerability Disclosure Policy
  • NIH Privacy Policy
NTP is headquartered administratively at the National Institute of Environmental Health Sciences, part of the National Institutes of Health
  • Staff:
  • Request an Update of this Page
  • Staff Intranet