Respiratory Models & Histology Lab Book Page 339.

Respiratory Models & Histology

Lab Book Page 339

Fig. not in your lab book

The Upper Respiratory Structures

• Nasal Cavity– Contains the superior, middle and inferior

nasal conchae

• Pharynx– Divided into three sections the nasopharynx,

oropharynx and laryngopharynx

Lab Book page 340

Sagittal Head

Superior Nasal Conchae

Middle Nasal Conchae

Inferior Nasal Conchae

External nares

Sagittal Head

Frontal Sinus

Sphenoid (Sphenoidal)Sinus

Nasopharynx

Oropharynx

Laryngopharynx

Sagittal Head

Larynx – Epiglottis

Larynx – Thyroid Cartilage

Esophagus

The Lower Respiratory Structures

• Larynx– Made of cartilage and ligaments– 3 Major cartilages of the larynx:

• Thyroid cartilage• Cricoid cartilage• Epiglottis

– Contains vocal cords, which surround an opening called the glottis

Lab Book page 342

Larynx Anterior View

Epiglottis

Thyroid Cartilage

Laryngeal Prominence

Cricoid Cartilage

Tracheal Cartilage

Hyoid Bone

Larynx Superior View

Epiglottis

Glottis(hole)

Vocal Cords

Arytenoid Cartilage

Trachea

• Windpipe – brings air to/from lungs

• Contains tracheal cartilages which protect the airway and prevent collapse

Fig. not in you lab book

Bronchial Tree

Fig. not in you lab book

Thoracic Model – Internal View

Right Brachiocephalic vein

Left Brachiocephalic vein

Superior Vena Cava

Esophagus

Aortic Arch

Pulmonary Arteries

Pulmonary Veins

Thoracic Model – Internal View

Trachea

Primary bronchus

Secondary bronchus

Tertiary Bronchus

Thoracic Model – External View

Right LungSuperior Lobe

Right LungMiddle Lobe

Right LungInferior Lobe

Diaphragm

Left LungSuperior Lobe

Cardiac notch of left lung

Left LungInferior Lobe

2 Respiratory Slides

• 1. Slide of the TRACHEA

• 2. Slide of a BRONCHIOLE

SLIDE OF TRACHEA – lab

book pg. 345 Fig. 6

LUMEN of Trachea

Pseudostratified Ciliated Columnar Epithelium

Hyaline Cartilage

Goblet Cells

Close-up of Trachea showing a Goblet Cell

Goblet Cell

Bronchiole & Alveoli

Fig. not in you lab book

Also known as a septal cell: produces SURFACTANT which reduces the surface tension in the alveoli

Fig. not in you lab book

Slide of a Bronchiole

Bronchiole(notice it is filled with air so it is empty inside)

Alveoli or Alveolar Sacs

Simple Squamous Epithelia

Blood Vessel(notice it is filled with RBC’s)

Lab Book page 346Fig. 7 (b)

Alveoli or Alveolar Sacs

Practice Slides!!!

Slide of a Bronchiole

Thoracic Model – External View

Thoracic Model – Internal View

Thoracic Model – Internal View

Larynx Anterior View

Larynx Superior View

Sagittal Head

Sagittal Head

Sagittal Head