laboratory exercises for the respiratory system2020/04/17 · the respiratory system fish air...
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LABORATORY EXERCISES FOR THE RESPIRATORY SYSTEM
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Fish air bladder
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Slide #100 (BV-1-181A). Nasal cavity, cow.
pseudostratified columnar epithelium with cilia and goblet cells
propria/submucosa contains glandular elements, solitary lymph nodules, and numerous blood vessels
bone
propria/ submucosa contains glandular elements
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Bone
osteocytes
osteoclasts
osteoblasts
Slide #100 (BV-1-181A). Nasal cavity, cow.
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Slide #153 (53a). Femur, cat.
compact bone cancellous bone located among the bone marrow.
osteocytes, osteoblasts, osteoclasts.
physeal plate = growth plate
megakaryocytes white adipose
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Slide #70 (1088). Nasal cavity, cat. olfactory region of this organ
pseudostratified columnar epithelium with cilia and goblet cells
nerve
glandular elements
olfactory bulbs
lamina propria/submucosa
Cartilage and bone
nerve
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DEMO SLIDE BOX 159 (1089) –Developing bones and synovial joint, kitten.
primary center of ossification
Zone of reserve (resting) cartilage—this zone appears as an area of typical hyaline cartilage. Zone of proliferative chondrocytes—characterized by chondrocytes that are arranged in rows (like stacks of coins). Zone of mature (hypertrophied) chondrocytes—in this zone, both the chondrocytes and lacunae have enlarged at the expense of the matrix, reducing it (the matrix) to thin strands. Zone of calcified chondrocytes/cartilage matrix—
Zone of erosion and ossification
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Nasopharynx Slide #122 (C11-91). Soft palate, dog.
nasopharynx. PSEUDOSTRATIFIED COLUMNAR EPITHELIUM WITH CILIA AND GOBLET CELLS
oropharynx (i.e., oral cavity side of the soft palate) NON-KERATINIZED STRATIFIED SQUAMOUS EPITHELIUM
CCT MIXED glands
GOBLET CELLS
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Slide #71 (Pf5-73/205). Trachea and esophagus, pig.
respiratory epithelium
hyaline cartilage ring
trachealis Muscle = SMOOTH MUSCLE
esophagus
Trachea
Lamina propria/submucosa containing glands
elastic fibers
adventitia
esophagus
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DEMO SLIDE BOX 213 –Trachea and thyroid gland, rabbit.
basophilia to cartilage CHONDROITIN SULFATE [WHICH IS THE MAJOR COMPONENT THAT CONFERS THE BASOPHILIA – CHONDROITIN SULFATE IS A TYPE OF GAG SO OTHER GAGS MIGHT PLAY A MINOR ROLE IN CONFERING BASOPHILIA TO THE CARTILAGE MATRIX]
respiratory epithelium = PSEUDOSTRATIFIED COLUMNAR EPITHELIUM WITH CILIA AND GOBLET CELLS
CARTILAGE
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DEMO SLIDE BOX 81 – Trachea and elastic artery, pig.
trachealis muscle.
PSEUDOSTRATIFIED COLUMNAR EPITHELIUM WITH CILIA AND GOBLET CELLS
“C” shaped rings of hyaline cartilage,
Plasma cells
elastic artery
companion vein
Lymph node
nerve
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DEMO SLIDE BOX 81– Trachea, artery, pig.
large veins elastic arteries
nerves
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Slide # 120 (Dog1-2056) – Trachea, dog.
goblet cells stain red
cartilage
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goblet cell
Slide # 120
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Slide #75 (Ed 904-202a). Lung, donkey.
terminal bronchioles which progress into respiratory bronchioles.
individual alveoli,
alveoli ducts alveoli sacs smaller intrapulmonary bronchi.
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Slide #75(Ed 904-202a). Lung, donkey. individual alveoli, alveoli ducts and alveoli sacs.
terminal bronchioles which progress into respiratory bronchioles.
CCT bronchus
bronchus
alveolar ducts,
vein
plates of hyaline cartilage.
RESPIRATORY BRONCHIOLE IS PART OF THE RESPIRATORY
TERMINAL BRONCHIOLE IS PART OF THE AIR CONDUCTING PORTION
intrapulmonary intrapulmonary
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Slide #72 (SP-1-81). Lung, sheep.
PULMONARY PLEURA = VISCERAL PLEURA = SEROSA = SIMPLE SQUAMOUS EPITHELIUM (OR MESOTHELIUM) AND A SMALL AMOUNT OF CCT
CCT
smaller intrapulmonary bronchi.
plates of hyaline cartilage.
artery
alveolus alveolus
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Slide #72(SP-1-81). Lung, sheep.
CCT
smaller intrapulmonary bronchi.
plates of hyaline cartilage.
artery vein
alveolar sacs
glands bronchiole
lamina propria, muscularis mucosae, submucosa
Goblet cell
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Slide #72(SP-1-81). Lung, sheep.
terminal bronchiole
alveolar sacs
alveolus
respiratory bronchiole
Ciliated cells No goblet cells
terminal bronchiole
macrophages
alveolar sacs
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Slide #72(SP-1-81). Lung, sheep.
respiratory bronchiole alveolar ducts,
alveolar sacs alveoli.
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Slide #74 (C011-H-85B). Lung, dog. mildly pathologic
neutrophils, with some plasma cells and macrophages
macrophages may have phagocytized carbon particles
PULMONARY PLEURA = VISCERAL PLEURA = SEROSA = SIMPLE SQUAMOUS EPITHELIUM (OR MESOTHELIUM) AND A SMALL AMOUNT OF CCT
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Slide #74 (C011-H-85B). Lung, dog intrapulmonary bronchus, bronchiole, terminal bronchiole
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DEMO SLIDE BOX 83 - Lung, horse.
intrapulmonary bronchus, bronchiole, and terminal bronchiole
alveolar ducts, alveolar sacs and alveoli.
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several respiratory units (i.e., respiratory bronchioles, alveolar ducts and sacs, and alveoli)
DEMO SLIDE BOX 83 - Lung, horse terminal bronchiole
sac
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DEMO SLIDE BOX 84 – Lung, pig.
several respiratory units (i.e., respiratory bronchioles, alveolar ducts and sacs, and alveoli)
alveolar phagocytes or macrophages (“dust cells”);
bronchus
bronchus
bronchioles intrapulmonary
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DEMO SLIDE BOX 84– Lung, pig.
alveolar phagocytes or macrophages (“dust cells”)
terminal bronchiole,
Type I cell
Type II cell
alveolar sac
arteriole
alveolus
alveolar sac
alveolus
Type II cells produce surfactant that coats the type I cell’s surface and reduces surface tension for easy of breathing. Type I cells exchange gasses
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alveolar phagocytes or macrophages (“dust cells”)
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Slide #73 (971) - Lung, calf.
several respiratory units (i.e., respiratory bronchioles, alveolar ducts and sacs, and alveoli)
terminal bronchiole
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DEMO SLIDE BOX #207 –Lung (species unknown).
terminal bronchioles
several respiratory units (i.e., respiratory bronchioles, alveolar ducts and sacs, and alveoli)
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DEMO SLIDE BOX #152 – Lung, rabbit.
several respiratory units (i.e., respiratory bronchioles, alveolar ducts and sacs, and alveoli)
terminal bronchioles
cartilage
Lymphoid cells
intrapulmonary bronchus,
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air blood
air
blood
Air blood barrier
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Slide #51 (Ck2-205B). Trachea, chicken.
no trachealis muscle is present
rings are complete in birds
Respiratory epithelium =
cartilage
TRACHEA = PSEUDOSTRATIFIED COLUMNAR EPITHELIUM WITH CILIA AND GOBLET CELLS
goblet cells group to form intraepithelial glands
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DEMO SLIDE BOX 85 – Lung, chicken.
largest air-conducting structure present is accompanied by hyaline cartilage and is termed a primary bronchus
secondary bronchi
parabronchi
Air vesicles
Air and blood capillaries
cartilage
Air capillaries