RESPIRATORY SYSTEM RESPIRATORY SYSTEM

The respiratory system is involved in the intake and exchange of oxygen and carbon dioxide between an organism and the environment. exchangeoxygencarbon dioxideexchangeoxygencarbon dioxide

PARTS OF THE RESPIRATORY SYSTEM Nasal Cavity Nasal Cavity Epiglottis Epiglottis Pharynx Pharynx Larynx Larynx Trachea Trachea Lungs Lungs Diaphragm Diaphragm

NASAL CAVITY

EPIGLOTTIS The epiglottis is a cartilaginous structure valve that covers the entry of the larynx and moves up and down, preventing food from entering it and the trachea. The epiglottis is a cartilaginous structure valve that covers the entry of the larynx and moves up and down, preventing food from entering it and the trachea.

PHARYNX The pharynx is divided into three sections, and is a part of both the digestive and the respiratory systems. The pharynx is divided into three sections, and is a part of both the digestive and the respiratory systems.

LARYNX The larynx is your “voicebox.” The larynx is your “voicebox.”

TRACHEA The trachea (or windpipe) is the tube that connects the nose and mouth to the lungs. The trachea (or windpipe) is the tube that connects the nose and mouth to the lungs.

LUNGS The principal function is to transport oxygen from the air into the bloodstream and release carbon dioxide from the bloodstream into the air. This exchange of gases is accomplished by the specialised cells that form millions of tiny thin-walled air sacs called alveoli. The principal function is to transport oxygen from the air into the bloodstream and release carbon dioxide from the bloodstream into the air. This exchange of gases is accomplished by the specialised cells that form millions of tiny thin-walled air sacs called alveoli.

DIAPHRAGM It is a dome-shaped muscle that separates the chest cavity and the abdominal cavity. It is a dome-shaped muscle that separates the chest cavity and the abdominal cavity.

Alveolus (plural—alveoli)

Diagnostic Testing of the Respiratory System What would you do?

Signs and Symptoms Signs and Symptoms Use stethoscope to hear breath sounds. Use stethoscope to hear breath sounds. Chest X-ray (CXR). Baseline (healthy/normal) is important. Chest X-ray (CXR). Baseline (healthy/normal) is important. Lung Function Tests- Spirometry Lung Function Tests- Spirometry

Breath Sounds Normal Respiratory Rate: breaths per minute. Normal Respiratory Rate: breaths per minute.

CXR

Spirometry

Pathology Your homework: Your homework: Research a disease and bring in a page of notes on that disease: Research a disease and bring in a page of notes on that disease: History History Physical Examination Physical Examination Diagnosis Diagnosis Treatment Treatment