Frog Anatomy and Functions

Frog Anatomy Overview

• Frogs are amphibians.

External Anatomy

• External Nares (Nostrils): Used for breathing.

• Eyes: For vision.

• Forelimbs: Front legs.

• Hindlimbs: Back legs.

• Auditory Tubes: For hearing.

Internal Anatomy

• Vomerine Teeth: Teeth located on the roof of the mouth; used for grasping prey.

• Esophagus: Tube connecting the mouth to the stomach; transports food.

• Internal Nares: Internal openings of the nostrils inside the mouth.

• Tongue: Used for capturing prey.

Respiratory System

• Sequence of Respiratory Tract:
  • External Nares → Internal Nares → Glottis → Trachea → Lungs

Digestive Tract

• Esophagus → Stomach → Small Intestine → Large Intestine → Cloaca

Circulatory System

• Heart Chambers:

  • Right Atrium
  • Left Atrium
  • Ventricle

• Blood Flow:

  • The left atrium receives blood from the lungs.
  • The right atrium receives blood from the sinus venosus.
  • Both atria pump blood into the ventricle.

• Aorta: Main artery carrying blood from the ventricle to the body.

Cloaca

• Lies beneath the pelvic bone.

• Serves as a general receptacle for the intestine, urinary, and reproductive tracts.

• Functions to eliminate waste.