Anatomy 1 Anatomical Limits UE LU 5

Which of the following starts at the 3^rd left intercostal space and terminates at the 2^nd right costal cartilage?

• ascending aorta

• aortic arch

• innominate artery

• right common carotid artery

Answer explanation

The ascending aorta begins at the 3rd left intercostal space and extends to the 2nd right costal cartilage, making it the correct choice. The other options do not match this anatomical description.

Which of the following begins one inch below the ante-cubital fossa and terminates at a point over the base of the thumb?

• axillary artery

• subclavian atery

• brachial artery

• radial artery

• ulnar artery

Answer explanation

The radial artery begins one inch below the ante-cubital fossa and runs down the forearm to the base of the thumb, making it the correct choice. The other arteries listed do not follow this specific path.

Whcih of the following starts at the upper border of the 2^nd right costal cartilage and terminates at the upper border of the right sternoclavicular articulation?

• aortic arch

• ascending aorta

• right common caroid artery

• innominate artery

• left common carotid artery

Answer explanation

The innominate artery, also known as the brachiocephalic artery, originates at the upper border of the 2nd right costal cartilage and terminates at the upper border of the right sternoclavicular articulation, making it the correct choice.

Which of the following begins at the level of the left 2^nd costal cartilage terminates at the lateral border of the first rib

• axillary artery

• right subclavin artery

• left subclavian arter

• innominate artery

• right c ommon caroitd artery

Answer explanation

The left subclavian artery begins at the level of the left 2nd costal cartilage and terminates at the lateral border of the first rib, making it the correct choice among the options provided.

Which of the following begins one inch below the ante-cubital fossa and terminates at a point over the thenar eminence?

• axillary artery

• subclavian atery

• brachial artery

• radial artery

• ulnar artery

Answer explanation

The radial artery begins one inch below the ante-cubital fossa and runs down the forearm, terminating at the thenar eminence, making it the correct choice. The other arteries do not follow this specific path.

Which of the following begins at the right sternoclavicular articulation and terminates at the superior border of the thyroid cartilage

• aortic arch

• ascending aorta

• right common carotid artery

• innominate artery

• left common carotid artery

Answer explanation

The right common carotid artery originates at the right sternoclavicular joint and ascends to the level of the superior border of the thyroid cartilage, making it the correct choice among the options provided.

Which of the following begins begins at the level of the 2^nd costal cartilage and terminates at the superior border of the thyroid cartilage

• aortic arch

• ascending aorta

• right common carotid artery

• innominate artery

• left common carotid artery

Answer explanation

The left common carotid artery arises from the aortic arch at the level of the 2nd costal cartilage and ascends to terminate at the superior border of the thyroid cartilage, making it the correct choice.

The abominal aorta starts at ​ (a)   and terminates at ​ (b)   while the thoracic aorta starts at ​ (c)   and terminates at ​ (d)   .

• T12

• L4

• T4

• 12th thoracic vertebrae

• 3rd thoracic vertebrae

Answer explanation

The abdominal aorta starts at the 12th thoracic vertebrae (T12) and terminates at the 4th lumbar vertebra (L4). The thoracic aorta begins at the 3rd thoracic vertebra (T4) and ends at T12, making T12 the correct choice.

Which of the following begins at the lateral border of the first rib and terminates at the inferior border of the teres major muscle

• subclavian artery

• brachial artery

• innominate artery

• axillary artery

• common carotid artery

Answer explanation

The axillary artery begins at the lateral border of the first rib and ends at the inferior border of the teres major muscle, making it the correct choice among the options provided.

Which of the following begins at the inferior border of the teres major muscle and terminates one inch below the ante-cubital fossa

• subclavian artery

• brachial artery

• innominate artery

• axillary artery

• common carotid artery

Answer explanation

The brachial artery begins at the inferior border of the teres major muscle and runs down the arm, terminating about one inch below the ante-cubital fossa, making it the correct choice.