Respiration - Muscles Flashcards
pectoralis major
serratus posterior superior
serratus posterior inferior
internal intercostals - interchondral portion
pectoralis minor
external intercostals
external intercostals
the three primary muscles of inspiration are
diaphragm, external intercostals, internal intercostals
trapezius
Sternocleidomastoid
anterior scalenus
medial scalenus
posterior scalenus
levator scapulae
the ___ intercostals and the ___ intercostals are more-or-less in the same position, but the ____ is deeper
innermost; external
innermost intercostals
innermost intercostals
levator costarum
the difference between levator costarum longis and brevis is __
longis = connects two ribs below
brevis = connects one rib below
subclavius
subcostals
serratus ant
serratus ant
with some exceptions, generally muscles in the ___ and __ help with inspiration, and muscles in the ___ help with expiration
thorax; neck; abdomen
transverse abdominis
which muscle looks like a long corset?
transverse abdominis
rectus abdominis
external oblique
internal oblique
the ____ abdominus muscle is in a similar position to the __ __, just deeper
transverse; internal obliques
the ____ abdominis weaves inside the ___ abdominis
rectus; transverse
Latissimus dorsi
quadratus lumborum
quadratus lumborum
the three thoracic muscle groups involved in exhalation are
innermost intercostals, subcostals, serratus posterior inferior
every muscle group in the abdomen is involved in ___
expiration
these three inspiration muscles only elevate rib 1
scalenus (anterior and medial), subclavius
This muscle only elevates rib 2
posterior scalenus
These two muscles work to elevate the sternum
SCM and pectoralis major
This muscle stretches the ribs transversely during inhalation
pectoralis minor
These two muscles help to support the neck during inspiration
levator scapulae, trapezius
This muscle lifts the scapula
levator scapulae
These two muscle groups elevate groups of the upper ribs
serratus anterior and posterior superior
These four muscle groups raise most or all of the rib cage up
Levator costarum (brevis and longis), internal intercostals, external intercostals
these two muscles stabilize the abdominal wall to support expiration
quadratus lumborum, latissimus dorsi
These two muscle groups work specifically to pull the ribs down
innermost intercostals, serratus posterior inferior
This muscle group depresses the thorax during expiration
subcostals
These three muscles compress the abdomen during expiration
external oblique, internal oblique, transverse abdominis
During exhalation, these two muscles flex the vertebral column
external oblique, rectus abdominis
What are the diaphragm’s three points of origin and it’s one point of insertion?
origin: xiphoid process, 2nd half of ribs, lumbar vertebrae
insertion: central tendon of diaphragm
These four muscle groups have both their origin and insertion in most or all of the ribs
1) external intercostals
2) internal intercostals
3) innermost intercostals
4) subcostals
this muscle group has one of its origin points at the inner posterior thorax
subcostals
This muscle has its origin at almost all of the cervical vertebrae and all of the thoracic vertebrae. It then inserts into the scapula and clavicle
Trapezius
These two muscle groups originate at C7 and almost all the thoracic vertebrae, then insert into the ribs
levator costarums - brevis and longis
these three muscles originate at the cervical vertebrae and connect to the first or second rib
scalenus muscles - ant, med and post
these two muscle groups originate in the mid/lower spine and connect to the ribs
serratus posteriors - sup and inf
this muscle originates at C1-C4 and inserts in the scapula
levator scapulae
this muscle originates at the sacral, lumbar and lower thoracic vertebrae and inserts all the way in the humerus
latissimus dorsi
these two muscles insert into the humerus
Latissimus dorsi and pectoralis major
this muscle originates the the sternum and clavicle and inserts into the humerus
pectoralis major
This muscle originates at the upper ribs and inserts into the coracoid process of the scapula
pectoralis minor
this muscle originates at the mastoid process of the temporal bone and inserts to the sternum and clavicle
SCM
this muscle originates at the clavicle and connects to rib 1
subclavius
this muscle originates in the lower ribs and inserts into the iliac crest, inguinal ligament and abdominal aponeurosis
external obliques
this muscle originates at the inguinal ligament and inserts at the lower ribs and abdominal aponeurosis
internal obliques
inguinal ligament
this muscle originates and the iliac crest and inserts into the lumbar vertebrae and rib 12
Quadratus lumborum
this muscle originates in the pubis and inserts in to the sternum and lower ribs
Rectus abdominis
this muscle group originates from ribs 1-9 and inserts into the scapula
serratus anterior
this muscle originates at the posterior abdominal wall via the abdominis aponeurosis, then inserts into the transverse abdominis aponeurosis, the lower ribs, the diaphragm and the pubis
transverse abdominis
name the vertebrae and nerve innervating the diaphragm
C3-C5; phrenic nerve
name the two sets of vertebrae and nerves innervating the external and internal intercostals
T1-T6 thoracic intercostal nerves, T7-T11 thoracoabdominal intercostals
name the two sets of vertebrae and nerves innervating the innermost internal intercostals
T2-T6 thoracic intercostal nerves, T7-T11 thoracoabdominal intercostal nerves
