Skip to main content

Cardiology MCQ 67. Bovine arch

Q. Bovine arch refers to?
A. Common origin of brachiocephalic artery and left common carotid artery
B. Common origin of left and right common carotid artery
C. Separate origin of right subclavian and common carotid artery
D. Anomalous origin of left subclavian artery from pulmonary artery
Answer: A. Common origin of brachiocephalic artery and left common carotid artery

Explanation: 
Bovine arch refers to common origin of brachiocephalic artery and left common carotid artery from the aortic arch. It is most common variation of aortic arch seen in human beings. 
Bovine arch (BA) term is a misnomer because it does not actually reflect the arch
branching pattern found in cattle (a single common brachiocephalic trunk that gives rise to all head and upper extremity vessels is seen in cattles.)


Reference:
Labels:

Comments

Post a Comment

Popular posts from this blog

ECG Quiz

Case History:  A 46-year old female presents with history of palpitations.  At the time of palpitations, she also had rapid neck pulsations.  She presented to emergency and an ECG was done.  What are the findings?  What is the diagnosis?   Click here to reveal the answer The ECG shows a regular narrow complex tachycardia (ventricular rate of approximately 250/min). The P waves are not clearly visible, but there is a small deflection at the end of QRS in various leads. In lead I, this is pseudo r' and in leads this is pseudo s wave. The patient was found to have AVNRT on EPS and slow pathway was ablated successfully.  
Post a Comment
Read more

Peripartum Cardiomyopathy

Peripartum Cardiomyopathy  (PPCM) •         Usually develops in last month of pregnancy or first 5 months post-delivery. •         Presents as heart failure with reduced ejection fraction (dilated cardiomyopathy) ↳        LV EF < 45%  •         PPCM is a diagnosis of exclusion. •         Risk factors → 1-      History of Hypertension, Pre-eclampsia 2-      Black women •         Incidence → 1 in 2000 live births. •         Management → 1.       Guideline directed medical therapy for HF- Beta-blockers Hydralazine plus isosorbide dinitrate  Diuretics 2.       Bromocriptine 3.       Low threshold for anticoagulation 4. ...
Post a Comment
Read more

MCQ

 Cardiology MCQ Q. Which of the following leads is not an inferior lead in ECG? A. Lead II B. Lead III C. Lead aVF D. Lead aVR Click the button below to view answer Show answer Correct answer is option D. Lead aVR
Post a Comment
Read more