Content:
0:00 Introduction
0:33 Blood Circulation System
2:57 External Structures of the Heart
4:51 Internal Structures of the Heart
5:51 Right Atrium
10:35 Right Ventricle
14:18 Left Atrium
15:35 Left Ventricle
——————————-
🫀 Join: https://www.youtube.com/channel/UCEr7pkSXVsHcBLLBcJAGV-Q/join
📷 Follow my IG: https://www.instagram.com/taimtalksmed/
💝 Donation link: https://www.buymeacoffee.com/taimtalksmed
——————————-
The images featured in this video are sourced from the Complete Anatomy program by @CompleteAnatomyElsevier, used under licensed permission.
Blood Circulation in the Body:
– Pulmonary Circulation (Circulus Sanguid Minor):
○ Deoxygenated blood comes from the body into the right atrium through the superior and inferior vena cava.
○ Blood goes through the Tricuspid valve into the right ventricle
○ The right ventricle pumps blood through the pulmonary valve into the pulmonary artery
○ The pulmonary artery pumps blood into the lungs
– Circulus Sanguis major (Systemic Circulation):
○ Blood comes from the lungs into the left Atria
○ The left atria send blood through the bicuspid valve into the left ventricle.
○ The left ventricle sends blood through the Aortic Valve into the Aorta
○ Aorta sends blood to the body again
External Structures of the Heart:
– Apex of the Heart (Apex Cordis)
– Base of the Heart (Basis Cordis)
– Pulmonary Surface (Facies Pulmonalis)
– Sternocostal Surface (Facies Sternocostalis)
– Diaphragmatic Surface (Facies Diaphragmatica)
– Right Border of the heart / Right Margin of the heart (Margo Dexter Cordis)
– Coronary Sulcus (Sulcus Coronarius)
– Anterior Interventricular Sulcus (Sulcus Interventricularis Anterior)
– Posterior Interventricular Sulcus (Sulcus Interventriculare Posterior)
Internal Structures of the Heart:
– Septum of the Heart (Septum Cordis)
○ Interventricular Septum (Septum Interventriculare)
§ Muscularis Part (Pars Muscularis)
§ Membranous Part (pars Membranacea)
○ Interatrial Septum (Septum Interatriale)
Anatomy of the right atrium:
– Anterior Wall: Right Auricle (Auricula Dextra)
– Lateral Wall: Right Auricle (Auricula Dextra)
○ Pectinate Muscle (Musculus Pectinati) in the auricle
– Superior Wall: Opening of Superior Vena Cava (Ostium Vena Cava Superioris)
– Posterior Wall:
○ Opening of Inferior Vena Cava (Ostium Vena Cava Inferiores)
○ Sinus of Vena Cava (Sinus Venarum) (Sinus Venarum Cavarum)
○ Terminal Crest (Crista Terminalis)
○ Valve of the Inferior Vena Cava (Vulva Venae Cavae Inferioris)
– Medial Wall: Interatrial Septum
○ Oval Fossa (Fossa OValis)
○ Border of Fossa Ovale (Limbius Fossa Ovale)
○ Opening for Coronary Sinus (Ostium Sinus Coronarii)
○ Valve for the coronary sinus (Vulva Sinus Coronarii)
○ Openings of smallest cardiac veins (Foramina Venarum Minmarum)
– Inferior Wall:
○ Right Atrioventricular Opening (Ostium Atrioventriculare Dextrum)
○ Tricuspid Valve
Right Ventricle:
– Base:
○ Right Atrioventricular Opening
○ Opening of Pulmonary Trunk (Ostium Trunci Pulmonalis)
– Trabeculae Carneae
– Papillary Muscles (Musculi Papillares)
– Tricuspid Valve
○ Anterior cusp
○ Posterior cusp
○ Septal cust
○ Formed by Endocardium
○ Fibrous Ring (Anulus Fibrosus)
○ Tendinous Chord (Chordae Tendineae)
– Pulmonary Valve
○ Semilunar Cusps
○ Fibrous Ring
○ Nodules of the semilunar valve (Noduli Vulva Semilunaris)
○ Sinuses of Pulmonary Trunk (Sinus Trunci Pulmonalis)
Left Atrium
– Anterior Wall:
○ Left Auricle (Auricula Sinister)
○ Pectinate Muscle
– Posterior Wall:
○ Pulmonary Veins
○ Openings of Pulmonary Veins (Ostia Venarum Pulmonalium)
– Medial Wall:
○ Interatrial Septum
– Anterior Wall:
○ Left Atrioventricular Opening (Ostium Atrioventriculare Sinister)
○ Mitral Valve
Left Ventricle
– Left Atrioventricular Opening
○ Bicuspid Valve (Mitral Valve)
○ Anterior Cusp (Cuspis Anterior)
○ Posterior Cusp (Cuspis POsterior)
○ Commissural Cusps (Cuspides Comissurales)
– Aortic Opening (Ostium Aortae)
○ Aortic Vestibule (Vestibulum Aortae)
○ Aortic Valve (Vulva Aortae)
○ Right Semilunar Cusp
○ Posterior Semilunar Cusp
○ Left Semilunar Cusp
– Trabeculae Carneae
– Papillary Muscles
– Tendinous Chords
Sources used in this video:
– Memorix Anatomy 2nd Edition by Hudák Radovan (Author), Kachlík David (Author), Volný Ondřej (Author)
– Complete Anatomy by 3d4medical
– Biorender
– University notes and lectures
