PPT 3 Muscles of Respiration Flashcards
Muscles of Respiration and Physiology
breathing requires what type of effort to move the rib cage
muscular
the primary muscle of inspiration
diaphragm
what separates the thorax from the abdomen
diaphragm
a sheet like tendon
central tendon
what way is the diaphragm pulled during inspiration
downward
during inspiration the lungs are expanded in the
vertical dimension
what is the origin of the diaphragm
xiphoid process
what is the insertion of the diaphragm
central tendon
origin of the external and internal intercostals
ribs 1-11
insertion of the external and internal intercostals
upper surface of the rib below
origin of the pectoralis major
sternum at costal cartilages and clavicle
insertion of the pectoralis major
humerus (arm)
origin of the pectoralis minor
ribs 3-5
insertion of the pectoralis minor
scapula
origin of the serratus anterior
ribs 1-9
insertion of the serratus anterior
scapula
also known as the boxing muscle
serratus anterior
why are the accessory neck muscles important
important for respiration, source of stability, control neck flexion and extension
the two specific muscles of the neck are
sternocleidomastoid muscle and scalene
origin of the sternocleidomastoid muscle
sternum
insertion of the sternocleidomastoid muscle
mastoid
origin of the scalene muscles
cervicle spine
insertion of the scalene muscles
ribs 1-2
list the abdominal muscles
rectus abdominis, obliquus externus, transversus abdominus