Urethra
The urethra is a tube that connects the urinary bladder to the urinary meatus for the removal of fluids from the body. In males, the urethra also serves as a passage for semen during ejaculation. The length and structure of the urethra differ between males and females.
Structure of the Urethra
In males, the urethra is longer and divided into three parts: the prostatic urethra, the membranous urethra, and the spongy (penile) urethra. In females, the urethra is shorter and opens into the vestibule, a structure of the female external genitalia.
Function of the Urethra
The main function of the urethra is to eliminate urine from the body. In males, it also serves as a passage for semen during ejaculation. The urethral sphincter muscles control the flow of urine and semen through the urethra.
Study Guide
- What is the function of the urethra?
- Describe the structure of the male urethra.
- How does the female urethra differ from the male urethra?
- What are the sphincter muscles and what is their role in urethral function?
◂Science Worksheets and Study Guides Sixth Grade. Introduction to Animals
Study Guide
Introduction to Animals 
Activity Lesson
Introduction to Animals Worksheet/Answer key
Introduction to Animals Worksheet/Answer key
Introduction to Animals Worksheet/Answer key
Introduction to Animals Vocabulary/Answer key
Introduction to Animals Vocabulary/Answer key
Introduction to Animals Vocabulary/Answer key
Introduction to Animals Vocabulary/Answer key
Introduction to Animals
Activity LessonWorksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
LIFE SCIENCE
From Molecules to Organisms: Structures and Processes