Respiratory System: Secondary Muscles of Inhalation Flashcards
Front Muscles
Pectoralis Major
Pectoralis Minor
Serratus Anterior
Pectoralis Major Attachments
Humerus
Clavicle
Sternum
Costal Cartilage
HTR: Draw triangle, Beach -> costal)
Pectoralis Major Function
Raises sternum and ribcage (Transverse/anteroposterior expansion)
BIG EFFECT
Pectoralis Minor Attachments
Scapula
Ribs 2-5
(Beach-> shovel-> sunniest at 2-5)
Pectoralis Minor Functions
Raises ribcage (T & AP)
MODERATE EFFECT
Serratus Anterior Attachments
Inside surface of Scapula
ribs 1-9
HTR: Sir I’ll bring her home (IN) by 9 (1-9)
Serratus Anterior Function
Raises ribcage (T & AP)
Neck Muscles of Inhalation
Scaleni
Sternocleidomastoid
Subclavius
Scaleni Attachments
Cervical Vertebrae
Ribs 1-2
HTR: scale -> 1,2, sing -> neck -> cervical)
Scaleni Functions
Raises ribcage
MAIN: Balance and turn head
INEFFICIENT
Sternocleidomastoid Attachments
Sternum, Clavicle, Mastoid Process
Sternocleidomastoid Function
Raises rib cage
Raises sternum
MAIN: Turn head
EFFECTIVE
Subclavius Attachments
Clavicle, Rib 1
HTR: Clavicle, below -> first rib)
Subclavius Function
Raises ribcage
MAIN: Draw shoulder down and forward
INEFFECTIVE
Back Muscles of Inhalation
Levatores Costarum
Serratus Posterior Superior
Latissimus Dorsi
Levatores Costarum Attachments
7th cervical - 11th Thoracic
Rib below each vertebral attachments
HTR: lift-> wake up 7-11AM (morning)
Levatores Costarum Function
Lifts ribs individually or altogether
WEAK/POOR LEVERAGE
Serratus Posterior Superior Attachments
7th Cervical - 3rd Thoracic
Upper ribs
HTR: high up -> 7th cervical and 3rd thoracic
Serratus Posterior Superior Function
Raises ribs
STRONG, LARGE, GOOD LEVERAGE
EFFECTIVE
Latissimus Dorsi Attachments
Humerus
Lumbar Fascia
Ribs 10-12
Latissimus Dorsi Function
Raises lower rib
lowers lower rib
MAIN: Extend and rotate arm medially
NOT BEST FOR INHALATION
