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Thorax
thorax anatomy
107
Anatomy
Graduate
01/05/2010

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Cards

Term
Palpated at T2/T3 level
Definition
suprasternal notch
Term
Spine of the scapula located at what vertebra?
Definition
T3
Term
Palpated at T4
Definition
Sternal angle of Louis
Term
Xiphoid-sternal joint located
Definition
T9
Term
Palpated at L3
Definition
Costal margin
Term
Trachea relation to vertebrae
Definition
C6 (cricoid cartilage) to T4 (sternal angle of Louis)
Term
Cardiac notch location
Definition
behind the 5th and 6th left costal cartilage
Term
Right lung has, left does not
Definition
Horizontal fissure (along 4th costal cartilage)
Term
Location of mammary gland
Definition
in females, post puberty- extends from lateral margin of sternum to the midaxillary line: upper lateral edge extends around the lower border of the pectoralis major and enters the axilla, overlies the 2nd and 6th ribs
Term
Seperates lobes in mammary gland
Definition
Cooper's ligaments
Term
Male that develops breasts
Definition
Gyneco mastoid
Term
Blood supply to mammary gland
Definition

perforating branches of internal thoracic artery intercostal arteries

lateral thoracic and thoracoacromial branches of  the axillary artery

Term
lymph drainage in mammary gland
Definition

lateral quadrants : axillary (pectoral) group of nodes

Medial quadrants : via vessels that pierce the intercostal spaces to enter the internal thoracic group of nodes

Term
Innervation of Pectoralis Major
Definition
Lateral and Medial Pectoral nerves
Term
Innervation of Pectoralis Minor muscle
Definition
Medial Pectoral nerve
Term
2nd rib articulates with...
Definition
both manubrium and sternum
Term
External intercostals origin and insertion
Definition

O: inferior border of a rib

I: superior border of rib below

Term
External intercostals replaced by the _____________ at the costo-chondral junction
Definition
anterior (external) intercostal membrane
Term
Path of internal intercostals
Definition
inferior and POSTERIOR (external intercostals run inferior and ANTERIOR)
Term
Internal intercostals become _________ at the angles of the ribs
Definition
posterior (internal) intercostal membrane
Term
Muscle that is separated from the internal intercostal muscles by the intercostal nerves and vessels
Definition
Innermost intercostals
Term
Subcostal muscle
Definition
similar to innermost, but transverses 2-3 ribs
Term
Transversus thoracis origin
Definition
xiphoid process and inferior part of the body of the sternum
Term
Transversus thoracics insertion
Definition
2nd to 6th costal cartilage (crosses more than one intercostal space)
Term
Levatores costarum origin
Definition
transverse processes of C7 to T11 vertebrae
Term
Levatores costarum insertion
Definition
inferiorly inserts on the ribs
Term

Posterior intercostal arteries:

1st and 2nd spaces are branches of....

Definition
superior intercostal artery, a branch of the costo-cervical trunk of the subclavian artery
Term

Posterior intercostal arteries:

lower 9 spaces are branches of ....

Definition
descending thoracic aorta
Term

Anterior intercostal arteries are branches of:

 

Definition

spaces 1-6: internal thoracic artery

spaces 7-9: musculophrenic artery (branch of internal thoracic artery)

Term
posterior intercostal veins empty into...
Definition
the azygos or hemiazygos veins
Term
Anterior intercostal veins empty into...
Definition
 the internal thoracic and musculophrenic veins
Term
3 parts of diaphragm
Definition

Vertebral part

Costal part

Sternal part

Term
Costal part of diaphragm attached to
Definition
lower 6 ribs and costal cartilage
Term

Fibrous medial borders of the 2 crura form a __________________________

in front of the aorta

Definition
median arcuate ligament
Term
Vertebral part of diaphragm arises from
Definition

right crus: upper 3 lumbar vertebrae

Left crus: arising from upper 2 lumbar vertebrae

Term
Sternal part of diaphragm arises from
Definition
posterior surface of xiphoid process
Term
Innervation of diaphragm
Definition
phrenic nerve (C3,4,5)
Term
Level of Aortic opening of diaphragm
Definition
T12
Term
Level of Esophageal opening in diaphragm
Definition
T10
Term
Level of Caval opening in diaphragm
Definition
T8
Term
Aortic opening transmits
Definition
abdominal aorta, thoracic duct, azygos vein
Term
Esophageal opening transmits
Definition
esophagus, r/l vagus nerves, esophageal branches of the left gastric vessels, and lymphatics from lower 1/3 of the esophagus
Term
Caval opening transmits
Definition
inferior vena cava and terminal branches of the right phrenic nerve
Term
Two layers of pleura
Definition

Visceral layer- intimately related to lung surface

Parietal layer- lines inner chest wall, upper surface of diaphragm, and sides of pericardium and mediastinum

Term
Innervation of costal pleura
Definition
intercostal nerves
Term
Innervation of mediastinal pleura
Definition
phrenic nerve
Term
Diaphragmatic pleura innervation
Definition
lower 6 intercostal nerves
Term

Length of trachea

 

Definition
C6 to T4
Term
Bronchi reach lungs at what level?
Definition

right T5

Left T6

Term
Bronchus relation to arteries, veins
Definition
posterior
Term
Bronchus relation to pulmonary artery
Definition
inferior
Term
Bronchial arteries supplies:
Definition

The bronchi

Connective tissue of the lung

Visceral pleura

Term
Pulmonary arteries travel to:
Definition
terminal branches - alveoli
Term
Bronchial veins drain:
Definition

The Bronchi

Connective Tissues of the lung

Visceral pleura into azygos and hemiazygos veins

 

Term
Pulmonary Veins function
Definition
Brings oxygenated blood from the alveoli to the L atrium of the heart
Term
Nerve supply of the lungs
Definition
Pulmonary Plexus (sympathetic- sympathetic trunk, parsympathetic- vagus nerve)
Term
Contents of Mediastinum
Definition

Tymus

Heart and large blood vessels

Trachea

Esophagus

Thoracic duct

Vagus and phrenic nerves

Sympathetic trunks

Term
Mediastinum divided into superior and inferior parts via:
Definition
A plane between the sternal angle (anterior) to the lower border of the body of the 4th thoracic vertebra (posterior)
Term
Pericardium and heart contained in:
Definition
middle mediastinum
Term
Superior Mediastinum contains which vertebrae
Definition
T1-4
Term
Hilum
Definition
a depression located at middle of mediastinal surface, where the bronchi, vessels and nerves that form the root enter/leave the lung
Term
Superior Mediastinum contains
Definition
great vessels, trachea, esophagus, thoracic duct, vagus, phrenic nerves
Term
Right coronary artery arises from...
Definition
anterior aortic sinus
Term
Left coronary artery arises from...
Definition
left posterior aortic sinus
Term
Left subclavian arises from
Definition
directly off aortic arch (no left brachiocephalic artery)
Term
Brachiocephalic artery gives rise to...
Definition

R subclavian artery

R vertebral artery

R common carotid artery

Term
Left subclavian artery runs with
Definition

the trachea and esophagus (left side)

Arches over the apex of the left lung

Term
Right pulmonary artery path
Definition

posterior to ascending aorta and superior to vena cava

 

Antior<= AA, RP =>posterior

VC

Term
Left pulmonary artery path
Definition
anterior to the descending aorta (note right p.a runs posterior to ascending aorta)
Term
Brachiocephalic vein formed by:
Definition
subclavian and internal jugular vein
Term
Left and right brachiocephalic veins merge to form:
Definition
superior vena cava
Term
Accessory Hemiazygos Veins are ____________ to hemiazygos veins
Definition
superior
Term
Esophagus arterial supply
Definition

Inferior thyroid artery

Branches of the descending thoracic aorta and left gastric artery

Term
Venous drainage of esophagus
Definition

Inferior thyroid

Azygos

Left Gastric veins

Term
Thoracic duct conveys to blood all lymph from...
Definition
lower limbs, pelvic cavity, abdominal cavity, left thorax, left arm and left side of the head and neck
Term
Thoracic duct empties into:
Definition
the left brachiocephalic vein junction
Term
Vagus runs ______ to esophagus
Definition
posteriorly
Term
Left vagus nerve descends between which two arteries?
Definition
left common carotid and left subclavian
Term
Left vagus runs ________ to esophagus
Definition
anteriorly
Term
Left vagus gives off...
Definition
left recurrent laryngeal nerve
Term
Left recurrent laryngeal nerve innervates....
Definition
most muscles of the left vocal cord
Term
Which vagus innervates the heart?
Definition
Right vagus
Term
Phrenic Nerves arise from...
Definition
Ventral rami of cervical nerves 3,4,5
Term
Right phrenic nerve travels with...
Definition
superior vena cava
Term
Left phrenic nerve travels with...
Definition
Left subclavian artery
Term
Preganglionic fibers from T5- T12 form...
Definition

splanchnic nerves

Greater 5-9

Lesser 10-11

Least T12

Term
Outermost part of pericardium
Definition
Fibrous Pericardium
Term
Parts of Serous Pericardium
Definition

Parietal layer

Visceral layer (epicardium)

Term
Space between the parietal and visceral layers
Definition
pericardial cavity
Term
Location of oblique sinus
Definition

between left atrium and pericardium

Posterior aspect of heart by the pulmonary veins and inferior vena cava penetrating the fibrous pericardium

Term
Location of the transverse sinus
Definition
between the reflection of serous pericardium around the aorta and pulmonary trunk and the reflection around the large veins
Term
Sternocostal surface
Definition
right atrium and right ventricle, separated by atrioventricular groove
Term
Base of heart
Definition
posterior surface, formed by left atrium
Term
Sinus venarum
Definition
smooth-walled posterior part of  right atrium, receives vena cavae and coronary sinus
Term
Anterior part of right atrium
Definition
rough-walled with musculi pectinati bundles of muscle fibers that roughen (trabeculate) the inside surface of the atrium
Term
Sinus venarum and anterior part of right atrium seperated by....
Definition

externally: sulcus terminalis

Internally: crista terminalis

Term
Fossa ovalis
Definition
shallow depression on interatrial septum, site of the fetal foramen ovale
Term
Left ventricle communicates with the left atrium via:
Definition
the atrioventricular orifice
Term
Left ventricl communicates with the aorta via:
Definition
the aortic orifice
Term
Marginal branch supplies
Definition
right ventricle
Term
Branches of right coronary artery
Definition
Marginal and posterior interventricular branch
Term
Posterior interventricular branch
Definition
supplies both ventricles
Term
Branches of left coronary artery
Definition

anterior interventricular branch

Circumflex branch

Term
Anterior interventricular branch supplies
Definition

anterior aspect of both ventricles

 

Term
Circumflex branch supplies
Definition
left atrium and ventricle
Term
Coronary Sinus
Definition

 

lies in the posterior atrioventricular groove; continuation of great cardiac vein. Opens into right atrium, near mouth of inferior vena cava

 

Term
Coronary Sinus recieves:
Definition

Great Cardiac Vein (both ventricles, part l atrium)

Middle Cardiac vein (posterior vent)

Small Cardiac Vein (post r atr/vent)

 

Small follows marginal artery

Great follows LAD

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