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Respiratory system - Coggle Diagram
Respiratory system
bony structure
The pectoral girdle
clavicle
scapula
The rib cage
true ribs (1-7)
false ribs (8-10)
floating ribs (11-12)
sternum
The vertebral column
thoracic (12)
lumbar (5)
sacrum (5 fused)
coccyx (4 fused)
cervical (7)
The pelvic girdle
sacrum (backbone)
ischium
ilium
pubic
soft tissues
trachea
Bifurcates into right & left bronchial tubes
16-20 C-shaped Hyaline cartilage rings
11 cm in length
esophagus runs behind it
Flexible tube (fibroelastic membrane)
alveoli
300 million alveoli in mature lungs
lined with surfactant to prevent collapse
tiny air sacs where gas exchange occurs
lungs
left lung
2 lobes (to accommodate the heart)
pleural lining
parietal pleurae
line thoracic wall
provides an airtight seal for lung expansion
visceral pleurae
encase lungs
right lung
3 lobes (separated by fissures)
muscles
expiration
Muscles of thorax, back, upper limb
Internal intercostals
External & internal oblique
Abdominal Muscles
Transversus abdominis
Rectus abdominis
inspiration
Accessory muscles of the thorax
External intercostal muscles
Serratus Posterior Superior
Levatores Costarum
Accessory muscles of the neck
sternocliedomastoid
diaphragm
Muscles of upper arm & shoulder
pectoralis major
pectoralis minor