Atrial septation — Flashcards

10 flashcards

During heart development, the right horn of the sinus venosus is incorporated into the right atrium to form the smooth-walled portion known as the _____

Most of the highly oxygenated blood reaching the heart via the fetal IVC is directed from the RA to the LA via the _____ and pumped into the aorta to supply the head and body

Shortly after birth, the septum secundum and septum primum fuse to form the _____

In the second step of atrial partitioning, the _____ forms in place of the ostium primum

The 6th aortic arch forms the _____ artery and _____.

The 4th aortic arch forms the _____ artery.

aorticopulmonary septum

Embryological origin of most cardiovascular structures

The embryonic _____ gives rise to the ascending aorta and pulmonary trunk

#10

TAPVR causes a dilated _____ atrium and ventricle

Atrial septation US Medical PG Flashcards - Medical Study Cards

Master Atrial septation with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.

Atrial septation Flashcard Deck - 10 Cards

Flashcard 1: During heart development, the right horn of the sinus venosus is incorporated into the right atrium to form the smooth-walled portion known as the _____

Answer: Sinus venarum

Extra: The right atrium has two main parts with different embryological origins: - **Sinus venarum**: The smooth-walled posterior part derived from the **right horn of the sinus venosus**. - **Pectinate muscles**: The rough-walled anterior part derived from the **primitive atrium**. The **crista terminalis** is the internal ridge that separates these two parts (derived from the right venous valve).

Flashcard 2: Most of the highly oxygenated blood reaching the heart via the fetal IVC is directed from the RA to the LA via the _____ and pumped into the aorta to supply the head and body

Answer: foramen ovale

Flashcard 3: Shortly after birth, the septum secundum and septum primum fuse to form the _____

Answer: atrial septum

Flashcard 4: In the second step of atrial partitioning, the _____ forms in place of the ostium primum

Answer: ostium secundum

Flashcard 5: The 6th aortic arch forms the _ artery and _.

Answer: pulmonary

Flashcard 6: The 4th aortic arch forms the _____ artery.

Answer: adult aortic arch and subclavian

Flashcard 7: aorticopulmonary septum

Answer: neural crest

Flashcard 8: Embryological origin of most cardiovascular structures

Answer: mesoderm

Flashcard 9: The embryonic _____ gives rise to the ascending aorta and pulmonary trunk

Answer: truncus arteriosus

Extra: Watch associated Bootcamp video [https://app.bootcamp.com/med-school/cardiology/videos/embryology?index=2] https://onlinemeded.org/spa/cardiac/cyanotic-congenital-heart-disease/acquire?ref=anki

Flashcard 10: TAPVR causes a dilated _____ atrium and ventricle

Answer: right

Extra: Watch Right to Left Shunts [https://dashboard.sketchy.com/study/medical/courses/medical-pathophysiology/units/medical-pathophysiology-cardiac/videos/medical-pathophysiology-cardiac-congenital-heart-disease-right-to-left-shunts?utm_source=anki&utm_medium=partnership&utm_campaign=february_update&utm_content=medical]Watch associated Bootcamp video [https://app.bootcamp.com/med-school/cardiology/videos/cyanotic-congenital-heart-defects?index=7] https://onlinemeded.org/spa/cardiac?ref=anki

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Atrial septation Flashcards for USMLE

Study 10 flashcards on Atrial septation for USMLE Anatomy. These active recall cards cover the key concepts, clinical associations, and high-yield facts from this chapter of Heart development. Each card is designed to test your understanding rather than just recognition, building stronger and more durable memories for exam day.

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There are 10 flashcards for Atrial septation, covering the key concepts, clinical correlations, and high-yield facts from this chapter of Heart development.

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