Dismiss Modal

Definition

Anatomía del ano

Choose a preferred language

El ano es la última parte del tubo digestivo. Está en el extremo del recto. Es por donde salen las heces del cuerpo. Consiste en un anillo muscular (llamado esfínter) que se abre durante la evacuación para permitir el paso de las heces y también células delgadas que recubren el interior del ano. La mayoría de los tipos de cáncer anal se originan en estas células delgadas de la mucosa. También se denominan células escamosas. La parte inferior del ano, donde se une con la piel, se denomina margen anal.

Corte transversal del ano.

© 2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare provider's instructions.

Find a doctor that's right for you.

From routine check-ups to groundbreaking treatments and beyond, Crestner Health is here to help you live your healthiest life.

Search our doctors
Related Articles
Read article
Digestive Health
Stomach Cancer: Stages

Learn what the different stages of stomach cancer mean.

Read article
Ear, Nose, and Throat
Esophageal Cancer: Diagnosis

If your healthcare provider thinks you have esophageal cancer, you'll need tests. You may have imaging tests and a biopsy.

Read article
Digestive Health
Bile Duct Cancer: Stages

The stage of a cancer is how much and how far the cancer has spread in your body. Your healthcare provider uses exams and tests to find out the size of the cancer and where it is.

Read article
Oncology
Stomach Cancer: Treatment Introduction

Learn about the different treatment choices for stomach cancer.

Schedule a Colon Cancer Screening

A screening is the best way to catch colorectal cancer early, when treatments is more successful.

Schedule an Appointment