upper body Flashcards
O/I/A/N
differences between right and left bronchus
R is angle more vertically and is wider compared to L
Right lung: lobes, fissures, segments
3 lobes: upper middle lower
2 fissures: tansverse seperateing upper and middle, oblique seperated middle and lower
10 segments: upper (apical, posterior, anterior). middle (lateral and medial). lower (superior, lateral basal, posterior basal, anterior basal and medial basal)
Left lung: lobes fissures segments
2 lobes: upper and lower
1 fissure: oblique seperating upper and lower
8 segments: upper (apical posterior, anterior, superior and inferior lingula). lower ( superior, posterior basal, lateral basal, anteriormedial basal)
muscles of mastication
+ muscles that attach to the mandible
1)temporalis. origin: temporal fossa. runs deep to the zygomatic arch. insertion: coronoid process of mandible.
2) masseter: origin: zygomatic arch. insertion angle of the mandible.
3)lateral pterygoid: 2 horizontal heads, origin: sphenoid. insertion: disc (superior) and condylor process of mandible (inferior).
4)medial pterygoid: orgin: sphenoid. insertion inner angle of mandible. forms sling around mandible with masseter.
opening: laeral pterygoid
closing: masseter, temporalis, medial pterygoid
protrusion: lateral and medial pterygoid
retrusion: temporalis
lateral deviation: contraleral medial/lateral pterygoids, masseter—ipsi temporalis
I: mandibular branch of trigeminal nerve
maxillary artery
brachial plexus
which roots?
pneumonics?
C5/C6/C7/C8/T1
“remeber to drink cold beer”:
roots, trunks, divisions, cords, branches
“marmu”: musculocutaneous, axillary, radial, median, ulnar
rhomboids major and minor
O: -. nuchal lig, C7-T1
+,T2-T5
I: -. root of spine of scapular
+, medial border of scapula
A: retraction of scapula, supports scapular positioning
N: dorsal scapular
levator scapular
O: C1-C4
I: superior angle of scapula
A: elevate scapular, ipis neck skide flexion, b/l nexk extension
N: dorsal scapular (C5)
serratus anterior
O: ribs 1-7/9 intecostal fascia
I:anterior surface of superior angle, medial border of scapula
A: anterior lateral scapular movement, facilitate scapular rotation, accesroy inspiratory
N: long thoracic “SALT”-serratus anterior long thoracic
supraspinatus
O:suprspinous fossa of scapula
I: greater tubercle of humerus
A:abduction of shoudler, stabilize GH head
N: suprascapular
infraspinatus
O: infraspinatus fossa of scap
I: greter tubercle of humerus
A: ER of shoudler
N: suprascapular
subclavis
O: 1st rib
I: clavicle
A: depress clavicle
N: nerve to subclavis
Pec +
O: clavlicle, sternum, costal cartilages, rectus ab sheath
I: greater tubercle of humerus
A: felxion, IR and adduction of shoulder
N: Lateral and medial pectoral n.
subscapularis
O: subscpular fossa of scap
I: lesser tubercle of humerus
A: IR of scapular/shoulder
N: upper and lower subscapularis
lat dorsi
O: T7-T12, thoracilumbar fascia, crest of lillium ribs 9-12, inferior angle of scap
I:intertubercular sulcus of humerus
“lady betweey 2 majors” between pec and teres +
A: extend/adduct shoudler, MR shoulder
N: thoracodorsal or middle subscap
teres major
O: inferior angle and lateral scapula
I: interubercular sulcus medial
A: adduction/extension, IR of shoudler
N: lower subscapular
pec -
O: ribs 3-5
I: coronoid process of scapula
A: protraction (anterioinferior) of scapular
N: medial pectoral
medial brachial cutaneous
posterior surface of upper arm
branch off of the medial cord of the brachial plexus
medal antebrachial cutaneous
medial surface of upper arm into forearm
branch of the medial cord of the brachial plexus
describe the path of the musculcutaneous nerve
peirces coracobrachialis, travels above brachialis but beneath biceps,
gives rise to the lateral cutaneous nerve of the forarm
coracobrachilais
O: coracoid process of the scapula
I:anterior medial surface of humeral shaft
A: adduction and flexion of the arm at the shoudler joint
N: musculocutaneous
brachilas
O: distal half of anterior humerus
I: cornoid process of ulna
A: elbow flexor
N: musculocutaneous
deep to biceps
biceps
O: short head-apex of cornoid process, long head: supraglenoid tubercle of GHJ,
I: radial tuberioisty, deep fascia of forarm
A: elbow flexor, supinator when elbow is flexed
N: musculocutaneous
cutaneous innervation of muculocutaneous n
lateral forarm
describe the path of the axillary nerve
through the quadrangular spacr