The Respiratory System

OVERVIEW OF THE RESPIRATORY SYSTEM

Fishes use their gills as the primary respiratory surface. The skin of fishes and amphibians, even terrestrial moist skinned amphibians functions as a respiratory surface.

A few fishes use lungs for respiration. Many amphibians are primarily lung breathers, and all reptiles, birds, and mammals use lungs almost exclusively for breathing.

The human respiratory system includes the tissues and structures of the nasal passages, pharynx, larynx, trachea, primary bronchi, and passages of the lungs.

The upper respiratory system includes the nasal passages and pharynx.

The lower respiratory system includes the larynx, trachea, primary bronchi, and other lung passages.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STUDY TOPICS IN SEQUENCE

Overview of Respiratory System

Human Nasal Passages

Human Pharynx Regions

Human Larynx and Trachea

Human Bronchi and Lungs

Muscles of Human Respiration

Lower Respiratory Development

Fish Lungs/Air Bladders

Tetrapod Lungs

Lung Ventilation Systems

Gills of Vertebrate Animals

Things I Should Know