The Diaphragm and Breathing

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App

Questions and Answers

Which muscle is responsible for the majority of inspiration at rest?

  • Scalenes
  • Diaphragm (correct)
  • Trapezius
  • External intercostals

Which nerves provide sensory innervation to the central diaphragm?

  • Subcostal nerves
  • Phrenic nerve (correct)
  • Pleural nerves
  • Intercostal nerves

What happens to the thoracic volume during forced inspiration?

  • Thoracic volume decreases
  • Thoracic volume fluctuates
  • Thoracic volume increases (correct)
  • Thoracic volume remains the same

Which structure forms the central part of the diaphragm?

<p>Central tendon (C)</p> Signup and view all the answers

At what level does the right dome of the diaphragm reach when maximally expired?

<p>Rib 5 level (B)</p> Signup and view all the answers

Which of the following structures is NOT attached to the diaphragm?

<p>Transverse process L1 (A)</p> Signup and view all the answers

Which of the following is a characteristic of flail chest?

<p>Occurs after severe trauma fracturing &gt;3 ribs (A)</p> Signup and view all the answers

What happens to the thoracic wall during inspiration in flail chest?

<p>It is drawn inwards (A)</p> Signup and view all the answers

At which level are the transverse thoracic sections located in the image?

<p>T12 (B)</p> Signup and view all the answers

Which structures are present at the T9 level in the transverse thoracic sections?

<p>Right ventricle, Left ventricle, IVC, liver (B)</p> Signup and view all the answers

What structures are located at the T5 level in the transverse thoracic sections?

<p>SVC, Ascending aorta, carina, Pulmonary trunk, Descending aorta, Oesophagus, Azygous vein (D)</p> Signup and view all the answers

What is the purpose of the serous pleural fluid in the lungs?

<p>To reduce friction during breathing (A)</p> Signup and view all the answers

Which muscle is responsible for the majority of the work during respiration?

<p>Diaphragm (A)</p> Signup and view all the answers

Which structure passes through the diaphragm at the level of T10?

<p>Inferior vena cava (C)</p> Signup and view all the answers

What is the clinical significance of the "triangle of safety" for chest tube insertion?

<p>It is the area where the chest tube can be inserted without risk of injury to vital structures (C)</p> Signup and view all the answers

Which layer of cells forms from the inner cell mass during implantation?

<p>Epiblast (A)</p> Signup and view all the answers

During gastrulation, which process gives rise to the three germ layers?

<p>Gastrulation (C)</p> Signup and view all the answers

Which cells form a zygote during the early stages of development?

<p>Inner cell mass (A)</p> Signup and view all the answers

Which layers form the body walls and connective tissue of the respiratory systems?

<p>Parietal and visceral layers (A)</p> Signup and view all the answers

What is the result of lateral folding during embryonic development?

<p>Closing of the body walls and entrapment of intraembryonic coelom (C)</p> Signup and view all the answers

What shape does the intraembryonic coelom form around the developing head?

<p>Horseshoe shape (A)</p> Signup and view all the answers

During lung development, which phase is characterized by the formation of primitive alveoli with cuboidal epithelium and developing capillaries?

<p>Canalicular phase (C)</p> Signup and view all the answers

Which of the following congenital abnormalities occurs in approximately 95% of cases and involves abdominal organs entering the thoracic cavity, preventing proper lung development?

<p>Congenital diaphragmatic hernia (B)</p> Signup and view all the answers

Which pharyngeal arches contribute to the development of the larynx and are associated with cranial nerves 4 and 6?

<p>Pharyngeal arches 4 and 6 (A)</p> Signup and view all the answers

During which stage of lung development does the alveoli continue to divide after birth?

<p>Alveolar (D)</p> Signup and view all the answers

What is the incidence rate of congenital pulmonary airway malformation?

<p>1 in 30,000 births (A)</p> Signup and view all the answers

What is the primary defect in oesophageal atresia and tracheoesophageal fistula?

<p>Defect in partitioning of tracheoesophageal septum (A)</p> Signup and view all the answers

What is the main cause of respiratory distress syndrome in newborns?

<p>Premature birth and insufficient surfactant (C)</p> Signup and view all the answers

What is the most common association with oesophageal atresia and tracheoesophageal fistula?

<p>VACTERL association (D)</p> Signup and view all the answers

What is the surgical management for oesophageal atresia and tracheoesophageal fistula?

<p>Surgical correction after birth (A)</p> Signup and view all the answers

Flashcards

Diaphragm's role in breathing

The diaphragm is the primary muscle responsible for normal breathing.

Phrenic Nerve

Provides sensory innervation to the central diaphragm.

Forced Inspiration

Increased thoracic volume during forceful breathing.

Central Tendon

The central part of the diaphragm's structure.

Signup and view all the flashcards

Right Diaphragm's lowest point

The right dome hits rib 5 during maximal exhalation.

Signup and view all the flashcards

Flail Chest

Severe trauma causing fractures in multiple ribs, causing the chest wall to collapse inward.

Signup and view all the flashcards

Importance of Serous Pleural Fluid

Reduces friction during lung expansion and contraction.

Signup and view all the flashcards

Congenital Diaphragmatic Hernia

Abdominal organs enter the chest, hindering lung development (95% of cases).

Signup and view all the flashcards

Epiblast

Cell layer formed from the inner cell mass during implantation.

Signup and view all the flashcards

Gastrulation

Process forming the three germ layers during embryonic development.

Signup and view all the flashcards

Zygote

First cell formed by the fusion of two gamete cells during early stage of development.

Signup and view all the flashcards

Germ Layers

Layers developing in the embryo that form the body walls and connective tissue.

Signup and view all the flashcards

Lateral Folding

Closing of the body walls during embryonic development.

Signup and view all the flashcards

Intraembryonic Coelom

Body cavity formed during development, forming a horseshoe shape around the head.

Signup and view all the flashcards

Canalicular Phase

Lung development phase with primitive alveoli and developing capillaries.

Signup and view all the flashcards

Alveolar Phase

Lung development phase where alveoli continue to multiply after birth

Signup and view all the flashcards

Congenital Pulmonary Airway Malformation

Lung malformation occurs in 1 in 30,000 births.

Signup and view all the flashcards

Oesophageal Atresia and Tracheoesophageal Fistula

Problem resulting in separation between esophagus and trachea.

Signup and view all the flashcards

Respiratory Distress Syndrome

Newborn lung problem due to insufficient surfactant, often caused by premature birth.

Signup and view all the flashcards

VACTERL Association

Possible combination condition that may co-occur with oesophageal atresia and tracheoesophageal fistula.

Signup and view all the flashcards

Inferior Vena Cava

Structure passing through the diaphragm at T10.

Signup and view all the flashcards

Surgical Management, Esophageal

Surgical correction is needed post birth.

Signup and view all the flashcards

Triangle of Safety

Region of safe chest tube insertion; avoids vital structures.

Signup and view all the flashcards

Thoracic Volume Increase

Change in chest cavity size during inspiration.

Signup and view all the flashcards

Pharyngeal Arches 4 and 6

Contribute to larynx development, associated with cranial nerves 4, and 6.

Signup and view all the flashcards

More Like This

Muscles of Inspiration and Expiration
10 questions
Anatomie du diaphragme
14 questions

Anatomie du diaphragme

FlatteringLogic8299 avatar
FlatteringLogic8299
Diaphragm Anatomy
41 questions

Diaphragm Anatomy

EfficientEnlightenment9668 avatar
EfficientEnlightenment9668
Use Quizgecko on...
Browser
Browser