Pediatric Pulmonologists

Children's Lung Doctors - Pediatric Asthma Doctors

Presbyterian Hospital Plano, MOB 1
6130 W Parker Rd, Ste 505, Plano, TX 75093

469-303-8440appointment Pediatric Lung Disease Dr. Peter Schochet and Dr. Hauw Lie

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    • Hauw S. Lie, MD
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Anatomy of a Child’s Lung

child breathingThe anatomy of a child’s lung is very similar to that of an adult. The lungs are a pair of air-filled organs consisting of spongy tissue called lung parenchyma. Three lobes or sections make up the right lung, and two lobes make up the left lung. The lungs are located on either side of the thorax or chest and function to allow the body to receive oxygen and get rid of carbon dioxide, a waste gas from metabolism. To understand the anatomy of the pediatric lung and lung disease in children, it is important to take a look at the entire respiratory system.

The anatomy of the pediatric respiratory system can be divided into 2 major parts:

  1. Pediatric Airway Anatomy: Outside of the thorax (chest cavity) includes the supraglottic (epiglottis), glottic (airway opening to the trachea), and infraglottic (trachea) regions. The intrathoracic airway includes the trachea, two mainstem bronchi, bronchi and bronchioles that conduct air to the alveoli.
  2. Pediatric Lung Anatomy: Lung anatomy includes the lung parenchyma are subdivided into lobes and segments that are mainly involved in the gas exchange at the alveolar level.

The Child Respiratory System

  • Mouth and Nose 
  • Pharynx – cavity located behind the mouth
  • Larynx – part of the windpipe that contains the vocal cords
  • Trachea – also referred to as the windpipe, conducts into and out of the lungs
  • Lungs – a pair of spongy air filled organs.
  • Bronchial tubes – passages that carry the air and divide and branch as the travel through the lungs
  • Bronchioles – tiny passages surrounded by bands of muscle that transport air throughout the lungs. Bronchioles continue to divide into smaller and smaller units until they reach microscopic air sacs called alveoli
  • Lung Alveoli – clusters of balloon-like air sacsNormal air flow to the lungs
  • Lung Interstitium – Thin layer of cells between alveoli that contain blood vessels and help support the alveoli
  • Pulmonary Blood Vessels – tubes that carry blood to the lungs and throughout the body
  • Lung Pleura – thin tissue that covers the lungs
  • Lung Pleural Space – area lined with a tissue called pleura and located between the lungs and the chest wall
  • Diaphragm – a muscle in the abdomen that assist with breathing
  • Lung Mucus – sticky substance that lines the airways and traps dust and other particles inhaled
  • Lung Cilia – microscopic hair-like structures that extend from the surface of the cells lining the airway. Covered in mucus, cilia trap particles and germs that are breathed in.

Anatomy of a Child’s Lung and the Breathing (Inspiration and Expiration)

child breathing with asthmaBreathing is the process that moves air in (inspiration) and moves air out (expiration) of the lungs through inhalation and exhalation.  As the lungs expand and contract, oxygen rich air is inhaled and carbon dioxide is removed. Breathing begins at the mouth and nose where air is inhaled. The air travels to the back of the throat, into the trachea and then divides into the passages known as the bronchial tubes. The bronchial tubes continue to divide as the go deeper into the lungs and the air is carried to the alveoli. Oxygen passes through the walls of the alveoli and into the blood vessels that surround these tiny sacs. Once oxygen enters the blood vessels, it is carried out of the lungs and to the heart where it can be pumped throughout the body to other organs and tissue. When the cells use oxygen, they produce a waste product called carbon dioxide. The carbon dioxide is carried by the blood vessels back to the lungs. Through exhaling, the carbon dioxide is carried back out of the lungs where it can exit through the mouth or nose.

Differences in Pediatric Pulmonary Anatomy

gas exchange between lungs and bloodWhile the basic anatomy of the pediatric lung and the adult lung are the same, there are some important differences that should not be overlooked. These differences can increase the occurrence and severity of lung disease and respiratory issues in young children and impact treatments and techniques that are most effective.

  • The ribs in infants and young children are oriented more horizontally than in adults and older children lessening the movement of the chest.
  • Rib cartilage is more springy in children making the chest wall less rigid. This can allow the chest wall to retract during episodes of respiratory distress and decrease tidal volume.
  • The intercostal muscles that run between the ribs are not fully developed until a child reaches school age. This can make it difficult to lift the rib cage especially when lying flat on the back.
  • The back of a child’s head is typically larger than in adults. This can cause the neck to flex when a child is lying on his or her back and result in a partially obstructed airway.oxygen is carried through blood , anatomy child's lung
  • Infants and children tend to have a proportionally larger tongue in relation to the space in the mouth.
  • Younger children are typically nose breathers.
  • The internal diameter of the airways in a child is smaller. Any inflammation or obstruction may cause more severe distress.
  • In general, pediatric airways are smaller, less rigid, and more prone to obstruction.
  • Children also have higher respiratory rates than adults making them more susceptible to agents in the air.

The anatomy of a child’s lungs and other components of the pulmonary (respiratory) system make treating pediatric lung disease a very specialized practice. Children are unique and affective treatments and approaches need to be as well. For more information about pediatric respiratory disease please submit an online appointment request or contact the office of Dr. Peter N. Schochet.

Appointment with Dr Schochet

WELCOME TO THE PEDIATRIC PULMONOLOGISTS

About Pediatric Pulmonologists: Pediatric pulmonologists Dr. Peter Schochet and Dr. Hauw Lie, are dedicated to the care of infants, children and adolescents with acute or chronic respiratory disorders. Our highly knowledgeable staff provides evidence based medical care to patients from the Plano area and throughout North Texas. Our practice has a … About Us

Diagnostic Tests for Asthma

Dr Schochet and Dr Lie

Pulmonary Tests and Procedures in Children: Pulmonary tests are an important aspect of diagnosing lung disorders in children. Dr. Peter Schochet and Dr. Hauw Lie are board certified pediatric pulmonologists that care for children with asthma and other lung disorders. They perform physical exams and provide or order pediatric pulmonary tests that

Diving Medicine – Undersea and Hyperbaric Medicine (UHB)

scuba diver and flag

Dr. Schochet's interest in diving has led him to assisting young divers with asthma. He understands that divers with asthma are more prone to diving mishaps. This is why it is important for asthmatics to have their medication regimen evaluated and have physical exams prior to going on diving trips. Although he doesn't treat diving illness, he is an … SCUBA Diving

Dangers of Teens Vaping E-Cigarettes discussed on Pedilung.com

Dangers of Teens Vaping E-Cigarettes

The dangers of teens vaping e-cigarettes is a serious issue being addressed by our pediatric pulmonologists in Plano, Dr. Schochet and Dr. Lie, as the number of adolescents and teens using electronic

pedilung.com

Pedilung Blog

Asthma Rates in Children are Leveling Off

January 2, 2016 By Schochet

The prevalence of pediatric asthma has leveled off except amongst the poor children.  The overall … Pedilung

Asthma Questionnaire: When Should I See a Pediatric Lung Specialist?

January 1, 2016 By Schochet

The Pediatric Lung Specialists have added a list of asthma questions for parents to ask themselves … Pedilung

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Pediatric Pulmonologists

Peter N. Schochet, MD
Hauw S. Lie, MD

Texas Health Presbyterian Hospital Plano
Medical Office Building 1 (MOB 1)
6130 West Parker Road, Suite 505
Plano, Texas 75093

Phone 469-303-8440
Fax 469-303-0675

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