Anatomy Quiz: Subclavian Artery

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Questions and Answers

Where does the inferior vena cava terminate?

Opposite the right third costal cartilage

Opposite the first lumbar vertebra

Opposite the right second costal cartilage

Opposite the right sixth costal cartilage (correct)

What is the origin of the azygos vein?

Union of the right and left common iliac veins

Inferior vena cava in the abdomen opposite the first lumbar vertebra (correct)

Union of the right and left subclavian veins

Arch of azygos vein

What connects the superior vena cava and inferior vena cava?

Subclavian artery

Ligamentum arteriosum (correct)

Pulmonary trunk

Ductus arteriosus

Which blood vessel pierces the diaphragm?

Inferior vena cava Signup and view all the answers

Where does the arch of azygos vein open?

Opposite the right second costal cartilage Signup and view all the answers

During embryonic life, what is the patent connection called?

Ductus arteriosus Signup and view all the answers

Where does the subclavian artery terminate?

Continues as the axillary artery at the outer border of the first rib Signup and view all the answers

What divides the subclavian artery into three parts in the neck?

Scalenus anterior Signup and view all the answers

Where does the right innominate vein terminate?

Forms the superior vena cava Signup and view all the answers

What is the origin of the superior vena cava?

Union of the right and left innominate veins opposite the right first costal cartilage Signup and view all the answers

What is the course of the left innominate vein?

Oblique course Signup and view all the answers

What is the anatomical course of the subclavian artery?

Passing superiorly behind the clavicle Signup and view all the answers

Which of the following describes the termination point of the inferior vena cava?

Penetrates the diaphragm at the level of T8 vertebra Signup and view all the answers

What is a distinguishing feature between the right and left carotid arteries?

The left carotid artery originates from the brachiocephalic trunk Signup and view all the answers

Where does the superior vena cava originate?

From the confluence of the right jugular, subclavian, and bronchial veins Signup and view all the answers

Which vein is closely associated with the left coronary artery?

Innominate vein Signup and view all the answers

At what level does the ascending aorta terminate?

"At right second costal cartilage where it continues as the arch of aorta" Signup and view all the answers

Study Notes

Venous System

The inferior vena cava terminates in the right atrium.
The azygos vein originates from the lumbar region of the inferior vena cava.
The azygos vein connects the superior vena cava and inferior vena cava.
The azygos vein pierces the diaphragm.
The arch of the azygos vein opens into the superior vena cava.

Embryonic Development

During embryonic life, the patent connection between the azygos vein and the superior vena cava is called the duct of Cuvier.

Arterial System

The subclavian artery terminates in the axillary artery.
The scalene muscle divides the subclavian artery into three parts in the neck.

Venous System (continued)

The right innominate vein terminates in the superior vena cava.
The superior vena cava originates from the union of the right and left brachiocephalic veins.
The left innominate vein courses horizontally to the right to join the right innominate vein to form the superior vena cava.

Arterial System (continued)

The subclavian artery courses laterally to the axillary artery, then divides into smaller branches.
The ascending aorta terminates at the level of the sternal angle (T4-T5).

Comparative Anatomy

A distinguishing feature between the right and left carotid arteries is that the right common carotid artery arises from the brachiocephalic artery, while the left common carotid artery arises directly from the aortic arch.
The great cardiac vein is closely associated with the left coronary artery.

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Description

Test your knowledge on the origin, course, and termination of the subclavian artery. This quiz covers key anatomical landmarks and structures associated with the subclavian artery.