external intercostal muscles
raises the lungs during inspiration,increasing size of thoracic cavity
muscles that rotate the scapula and elevate the rib cage
either of two large muscles of the chest; pulls the arm forward
neck muscles that help increase the thoracic cavity dimensions by elevating the first and second ribs during forced inhalation.
muscle that flexes neck; rotates head
serratus posterior superior
muscle that elevates upper 5 ribs in inspiration
elasticity, gravity, and torque are the three _______ forces of exhalation and influence resting, high, and low lung volume
internal intercostals, abdominal aponeurosis, rectus abdominus, external oblique, internal oblique, and transferversus abdominus are the 6 _________ muscles of exhalation
transverse thoracis, subcostals, serratus posterior inferior, and latissimus dorsi are the 4 ___________ muscles of exhalation
Framework for muscle, tendonous netowrk make up of flat, borad tendons located in the abdominal wall. Links several abdominal muscles together.
Compresses abdomen and aids in defecation, urination flexes vertebral column
Lower 8 ribs, Ilium and linea alba, flexion and rotation at waist
flexs vertebrae column; compresses abdomen; rotates vertebrea column
Long Straight muscle outer most layer of abdominals, pull abdominal wall in
pull abs inward and draws ribs down
small slips of muscle that attach to the inner surface of the lower ribs on the posterior portion of the thoracic wall; "skip" a rib and run two ribs long.
Function to depress ribs.
serratus posterior inferior
muscle that draws lower 4 ribs down & back; used for forced inspiration
muscle that pulls the shoulders back and downward