 Exercise 36: Pp  Refer to Figure 36.1 when studying structures of nose  Website with flashcard animation ›

 BIO 211 LAB #7 RESPIRATORY SYSTEM (PART 1): ANATOMY  PART A: ANATOMY OF THE HUMAN RESPIRATORY SYSTEM  INSTRUCTIONS:  1. Using the human torsos, larynx model, and the skulls, locate as many as possible of the following structures from the list, "Major Structures of the Human Respiratory System". Use your textbook for reference.  2. Answer related questions on the Questions Sheet.

 UPPER RESPIRATORY TRACT  1. NOSE › EXTERNAL NOSE › INTERNAL NOSE (NASAL CAVITIES) › NASAL SEPTUM › SUPERIOR, MIDDLE, INFERIOR MEATI › SUPERIOR, MIDDLE, INFERIOR TURBINATES (CONCHAE) › ANTERIOR NARES › POSTERIOR NARES › OLFACTORY EPITHELIUM › PARANASAL SINUSES: FRONTAL, MAXILLARY, SPHENOID, › ETHMOID 

 UPPER RESPIRATORY TRACT cont.  2. PHARYNX › NASOPHARYNX › OROPHARYNX › LARYNGOPHARYNX › EUSTACHIAN TUBE OPENINGS › FAUCES › PHARYNGEAL TONSILS (ADENOIDS) › PALATINE TONSILS › LINGUAL TONSILS

 UPPER RESPIRATORY TRACT cont.  3. LARYNX › THYROID CARTILAGE (ADAM'S APPLE) › EPIGLOTTIS › CRICOID CARTILAGE › ARYTENOID CARTILAGES › TRUE AND FALSE VOCAL CORDS › GLOTTIS › DIVISIONS › VESTIBULE › VENTRICLE › INFRAGLOTTIC LARYNX

 1. TRACHEA  2. PRIMARY BRONCHI (L&R) AND BRONCHIAL TREE  3. LUNGS › ROOT › HILUM › BASE › APEX › COSTAL SURFACE › LOBES › LEFT: SUPERIOR, INFERIOR › RIGHT: SUPERIOR, MIDDLE, INFERIOR  OTHER › 1. PLEURA  PARIETAL  VISCERAL › 2. DIAPHRAGM

The left lung has 2 lobes and the right lung has 3 lobes. Source:

 The pleural cavity is a closed space (like the inside of a balloon) within which the lung has grown.  As the lung grows into the space, it picks up a layer of pleura (outside of balloon) and this is called the visceral pleura. The remainder of the pleura is called the parietal pleura. (parietal pleura in blue; visceral pleura in purple)

 INSTRUCTIONS:  1. Obtain your assigned cat and locate each of the structures from the list, "Major Structures of the Cat Respiratory System". Use your lab manual (Color Photo Gallery) and the Rust lab manual for reference. (NOTE: Observe the cut on the demonstration cat that allows viewing of the epiglottis and related structures.)  2. Answer related questions on the Questions Sheet.

 ANTERIOR NARES  PHARYNX  NASOPHARYNX  OROPHARYNX  LARYNGOPHARYNX  LARYNX  THYROID CARTILAGE  EPIGLOTTIS  CRICOID CARTILAGE  ARYTENOID CARTILAGES  TRUE AND FALSE VOCAL CORDS  GLOTTIS

 TRACHEA  PRIMARY BRONCHI (L&R) AND BRONCHIAL TREE  LUNGS  BASE  APEX  COSTAL SURFACE  LOBES (Compare # to Human)  PLEURA › PARIETAL › VISCERAL  DIAPHRAGM  PHRENIC NERVES

trachea

There are R & L phrenic nerves, easily seen at diaphragm, attached to vena cava on R, in pleural folds on L. The right phrenic is attached to the inferior vena cava (image).

The left phrenic nerve is enfolded in the pleural folds which are attached to the diaphragm.