Respiration And Circulation: Name Description And Function

The respiratory system consists of the nose, mouth, pharynx, larynx, trachea, bronchi and lungs. These provide a passageway to allow air in and out of the body. Every cell in the body requires oxygen to survive.

➢ Inhaled air enters the nasal cavity, where it is cleaned, warmed and humidified on its way through the pharynx.

It filters the oxygen entering with hairs and mucus, these hairs and mucus trap dust and bacteria. Epiglottis

Air (oxygen) is inhaled into the body by the nose. The air is warmed filtered and moistured in the nasal cavity as the air needs to be cleaned before passing it along to the pharynx. Mucous is held in the sinus cavity. With the joint help from the mucous and the tiny hairs in the nose our nose ensures that the air is cleared of pathogens so that the air is clean to move on to the pharynx. The tiny hairs in the nose causes us to sneeze resulting in pathogens that may have been inhaled to be sneezed out and released back into the atmosphere.

Air can be breathed in through both the nose and the naval cavity, or the mouth, also known as the oral cavity. The air, regardless of the path taken, will always lead to the pharynx, a space located at the back of throat. It will progress through the larynx,

Epiglottitis is an inflammation of the epiglottis. The epiglottis is a flat cartilage that extends from the base of the tongue back-ward and upward. This is the tissue that covers the trachea or wind-pipe. It helps prevent food or any artifact that may enter. The tissue of the epiglottis can swell and block the airway. If suspected, seek medical attention immediately. This mainly affects children by the bacteria called Haemophilus influenzae type b. It is the most responsible for this type of inflammation.

• Once air pass through the pharynx, and enters the larynx, the two pairs of ligaments cover by mucosa called the vestibular folds, and prevents foreign particles from entering the lower respiratory system.

The epiglottis is the most important of the cartilages of the larynx. The epiglottis is elastic cartilage because the epiglottis has to be flexible to be able to flap over the glottis during swallowing. The epiglottis is the most important because it literally stops food from entering your trachea when you swallow food. It allows the food to bypass your trachea, and go straight into your esophagus.

The nasal cavity is a hollow space within the nose and skull that is lined with hairs and mucus membrane. The nasal cavity warms, moisturizes, and filters air that enters the body. Hairs and mucus inside the nasal cavity also help to trap dust before it enters the body.

Nasopharynx: is the upper part and connects with the nasal cavity above the soft palate.

Mammals inhale air through the nasal cavity which then travels down a passage called the larynx and then the trachea; 2 passages that ensure strength as well as flexibility and are both lined with cartilage ring to keep the airway open, yet allow structural support when the neck is moved (varies in different mammals). This is a function similar to that of an insect. The trachea then splits off into a left and right bronchus. These bronchi are the primary tracts in the respiratory airway that conducts air in to each lung. The bronchi then split off further into finer tubes called

`The frontal sinus is located above the eye. They are air spaces lined with mucous membrane. The ethmoid is a pair of paranasal sinuses. They help filter the air that goes into the nasal cavity. These are located in the ethmoid bone, which has ethmoidal air cells. There is three groups of ethmoidal air cells. They are the posterior, middle, and anterior. They are made up of a lot of cavities that have thin walls that are in the ethmoidal labyrinth and are finished by the maxilla, frontal, lacrimal, palatine, and sphenoid bones. The lips are mobile structures that surround the opening of the mouth. They have skeletal muscles and sensory nerves that are useful in judging textures of food and temperature. The lips mark the boundaries between the skin of the face and the mucous membrane that lines the alimentary canal. The trachea is hollow tube that connects the larynx and the bronchi of the lungs. It provides airflow to and from the lungs for respiration. The lungs is where the air you inhale goes and it lets go of waste air like carbon dioxide. The diaphragm is a dome shaped muscle and tendon that plays a vital role in the breathing process. It is

The Larynx is located at the trachea and at the base of the tongue, consisting of three main parts known as Supraglottis, Glottis and Subglottis which all work together to create a properly working Larynx. It separates humans from other mammals because it is responsible for voice resonance and spoken language. The larynx is essential for many other bodily functions including swallowing, phonation and respiration. However, the larynx can be broken down into two primary functions

According to the American Speech-Lanugage-Hearing Association (ASHA), a prosthesis is inserted between the trachea and esophagus (2004a). It allows air from the lungs enter the esophagus, causing it to vibrate

One of the major parts of the respiratory system is the airway. The airway includes the organs of the nose, mouth, pharynx, larynx, trachea, bronchi, and bronchioles. These organs work together to carry air between the outside of the body and the lungs. First,