Human Respiratory System Training Model

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Model Number: NH-87337

Brand: Niche Healthcare

540*380*70

A relief model of the respiratory system, including the oronasal cavity, larynx and trachea, primary bronchi and bronchial tree. The upper respiratory tract is sectioned along the medial sagittal plane. An alveolus with blood vessels (about 150X life size) is shown with excellent internal detail.

SKU: VS64892216 Category: Tag:

Description

Categories         Anatomical Model

Subject               Medical Science

Material              Eco-friendly PVC

Application       School/Hospital/Laboratory

 

The human respiratory system is designed to facilitate the exchange of oxygen and carbon dioxide between the body and the environment. It consists of several organs and structures, each with a specific function in the process of respiration. The main components of the respiratory system include:

Nose and Nasal Cavity:

  • Nostrils (nares): The entry points for air.
  • Nasal Cavity: Warms, moistens, and filters the incoming air. It also houses the olfactory receptors for the sense of smell.
  • Nasal Conchae: Curved bones that increase the surface area of the nasal cavity, enhancing air filtration and humidity.

Pharynx (Throat):

A muscular tube that serves as a passageway for both air and food. It is divided into three regions: nasopharynx, oropharynx, and laryngopharynx.

Larynx (Voice Box):

Located below the pharynx, it contains the vocal cords and is responsible for sound production. It also acts as a passageway for air and prevents food from entering the trachea through the epiglottis.

Trachea (Windpipe):

A tube reinforced with C-shaped cartilage rings that keep it open. It conducts air from the larynx to the bronchi.

Bronchi:

The trachea divides into two main bronchi (right and left), each entering a lung. These further subdivide into smaller bronchi within the lungs.

Bronchioles:

Smaller branches of the bronchi that continue to subdivide, leading air to the alveoli. They lack cartilage and have smooth muscle to regulate airflow.

Lungs:

The primary organs of respiration, located in the thoracic cavity. Each lung is divided into lobes (three in the right lung and two in the left lung).

Alveoli:

Tiny air sacs at the end of the bronchioles where gas exchange occurs. They are surrounded by a network of capillaries where oxygen diffuses into the blood, and carbon dioxide diffuses out of the blood.

Diaphragm:

A large, dome-shaped muscle located at the base of the lungs. It contracts and flattens during inhalation, creating a vacuum that draws air into the lungs, and relaxes during exhalation, expelling air from the lungs.

Intercostal Muscles:

Muscles located between the ribs that assist in the expansion and contraction of the chest cavity during breathing.

These components work together to ensure that oxygen is brought into the body and carbon dioxide is expelled, maintaining the vital process of respiration that supports cellular metabolism and overall bodily function.

 

What Organs Are In The Human Body?

What Organs Are In The Human Body?

 

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