Thorax Anatomy Flashcards
what is the innervation of the naso, oro and laryngopharynx
naso= maxillary V2 oro= glossopharyngeal laryngo= vagus
what nerve supplies motor innervation to stylopharyngeus
glossopharyngeal
what nerve supplies motor innervation to cricothyroid
external branch of superior laryngeal
origin and insertion of pec major
origin= medial clavicle and sternocostal head insertion= lateral lip of bicipital groove
origin and insertion of pec minor
origin= ribs 3-5 insertion= coracoid process
origin and insertion of serratus anterior
origin= upper 8 ribs insertion= vertebral border of scapula
innervation of pec major, minor and serratus anterior
major= medial and lateral pectorals minor= medial pectoral serratus= long thoracic nerve
what travels through diaphragm at T8, T10 and T12
T8= right phrenic and vena cava T10= vagus and oesophagus T12= aorta and thoracic duct
role of clara cells
detoxification of pollution and role in controlling inflammatory response
final branch of the bronchioles
respiratory bronchioles, terminal bronchioles come before respiratory
are azygos veins left or right side of the body
azygos are right and hemiazygos are left
what are the routes of the two recurrent laryngeals
right= loops under right subclavian and between trachea/ oesophagus left= loops under aorta and ascends between trachea/oesophagus
what is the drainage of the frontal and maxillary sinuses
hiatus semilunaris of middle meatus
what is the drainage of the sphenoid sinus
sphenoethmoidal recess lateral to attachment of nasal septum
what is the action of the pec major minor and serratus anterior
major= adduction and medially rotates humerus minor= draws scapula and forearm forwards serratus= protraction of the scapula
where is the pulmonary artery in relation to the bronchus in the right and left lungs
RALS
right= anterior to bronchus
left= superior to the bronchus
what level is the horizontal fissure of the lung
5th rib`
what may you find at T4-T5 at transverse plane
sternal angle bifurcation of trachea costal cartilage and rib 2 arch of aorta starting and ending T4/T5 also divides the mediastinum into superior and inferior
where are the heart sound locations
aortic valve= right of sternum- 2nd intercostal space
tricuspid valve= left of sternum 5th intercostal space
pulmonary valve= left of sternum 2nd intercostal space
mitral valve= left mid-clavicular 5th intercostal space
insertion of the sternocleidomastoid
mastoid process of temporal bone
what the 4 infrahyoids
TOSS thyrohyoid omohyoid sternohyioid sternothyroid
what two valves are the AV valves
tricuspid and mitral
what two valves are the semi lunar valves
pulmonary and aortic
how are papillary muscles attached to the valves
chorda tendinae
what is the only artery in the body to carry deoxygenated blood
pulmonary artery
how many pulmonary veins do we have
4
the right atrium is made up of smooth and trabeculated portions, where do they come from
smooth arises from sinus venosus and trabeculated is from the original atrium
what seperates the smooth and trabeculated portions of the right atrium
crista terminalis
what lies under the crista terminalis
sino-atrial node
what is the fossa ovalis a remnant of
foramen ovale
detour; what cranial nerve passes through the foramen ovale
mandibular V3
what joins together cardiac muscle cells
intercalated discs
what does the left coronary divide into
circumflex and LAD
what are the branches of the LAD called
diagonal
what are the branches of the circumflex called
obtuse marginal
when we talk about being right dominant, what artery are we referring to
PDA or posterior interventricular artery
70% are just right
20% are both right and circumflex
10% are just circumflex
what are the 3 longitudinal muscles of the pharynx called
salpingopharyngeus
palatopharyngeus
stylopharyngeus
what is the innervation of the longitudinal muscles of the pharynx
glossopharyngeal= stylo vagus= salpingo and palato
