Regional Anatomy of the Respiratory System - Practicum 2
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16 Terms
Anterior scalene
elevate rib 1
Middle scalene
elevate rib 1
Posterior scalene
elevate rib 2
Pectoralis major
flex arm and adduct arm
Pectoralis minor
elevate ribs 3-5 and protract scapula
Serratus anterior
protract scapula
rotator cuff muscle*
rotator muscles join scapular to the humerus. the flat tendons fuse together to form rotator cuff
Subscapularis*
medially rotate arm
Supraspinatus*
abduct arm
Infraspinatus* & Teres minor*
adduct arm, laterally rotate arm
Teres major
adduct arm, medially rotate arm
External intercostal
action: elevate ribs
innervation: intercostal nerve
Internal intercostal
action: depress ribs
innervation: intercostal nerve
Diaphragm
action: compress abdominopelvic cavity for inhalation
innervation: phrenic nerve
Vagus CN X
motor = speaking
parasympathetic motor neurons = heart, gastriointestinal tract
Accessory CN XI
motor to sternocleidomastoid
