Q3 Visc Gross Anatomy - Week 1 Thoracic Cav Flashcards
Prompt
Answer
Walls of the R and L compartments of thoracic cavity are called?
Parietal pleura
What are the lungs covered with?
Visceral pleura
What is the name of the fluid-filled space between the parietal and visceral pleural membranes?
Pleural cavity
Which membrane surrounds the heart?
Pericardial/Pericardium membranes
The ___ separates the lungs into R and L cavities
Mediastinum
Contents of the mediastinum?
Heart, thymus, esophagus, trachea, large blood vessels
Space between the layers of the pericardium that surrounds the heart?
Pericardial cavity
What are the 3 membrane layers of the pericardium?
Visceral pericardium (inner)
Parietal pericardium (outer)
Fibrous pericardium
What are the membranes of the pleura cavity?
Parietal pleura (covers inside of the thorax)
Visceral pleura (covers the surface of the lungs)
Which of the following body cavities are considered to be ventral cavities?
Thoracic, Abdominal, Pelvic (abdominopelvic)
Which of the following cavities are considered to be dorsal cavities?
Cranial, Spinal (Vertebral Canal)
Which are the superficial anterior chest muscles?
SCM
Pec major
Which are the deep anterior chest muscles?
Pec minor
Serratus anterior
Subclavius
What are the superficial anterior thoracic muscles?
Internal intercostal
External intercostal
Pec minor
Pec major
Serratus Anterior
What are the deep anterior thoracic muscles?
Internal intercostal
Transversus thoracic
Diaphragm
What muscles compose the thoracic wall?
Traps
Longissimus Thoracis
Iliocostalis Thoracis
Lats
Serratus Posterior Inferior
Erector Spinae
Superior to Inferior major thoracic arteries
Carotid (R/L)
Subclavian (R/L)
Brachiocephalic (R)
Aortic Arch
Ascending (R) Descending (L)
Coronary (R/L)
Thoracic aorta
Abdominal aorta
What are the branches of the aorta?
Carotid (R/L)
Subclavian (R/L)
Brachiocephalic (R)
Coronary (R/L)
Celiac Trunk
Superior mesenteric
Renal
Gonadal
Inferior mesenteric
Common Iliac
Major veins of thoracic cavity?
External Jugular (R/L)
Internal Jugular (R/L)
Subclavian Vein (R/L)
Brachiocephalic (Innominate) Vein (R/L)
Superior Vena Cava
Deoxygenated Blood Pathway
S/I Vena Cavae > R. Atrium > Passes through Tricuspid Valve > R. Ventricle > Pulmonary A. > R/L lungs
Oxygenated Blood Pathway
Lungs > L. Atrium > Passes Mitral Valve > L. Ventricle > Aortic Arch > Aorta > Descending Aorta
T1-T2 Nerves
Feed into top of chest
T3-T5
Feed into chest wall
T6-T8
Feed into chest wall & abdomen
Supraclavicular N. (C3 & C4)
Supply skin over pecs & deltoid m.
Lateral Pectoral N (C5-C7)
Supply pec major
Medial Pectoral N (C8-T1_
Supply pec major and pec minor
Interocostobrachial N. (T2)
Supply the axilla, breast, lat chest wall and areola
Long Thoracic N. (C5-C7)
Supply serratus anterior m
Thoracodorsal N (C6-C8)
Supply the lats
Lateral cutaneous branches of intercostal N. (upper 2-6 intercostal)
Supply the floor of the axilla
Anterior cutaneous branches of intercostal N (T1-T11)
Supply the intercostal m