Anatomy 1 Intro to circ up to venous return U E LU 5

Which of the following veins is the superficial vein on the lateral side of the upper extremity?

• cephalic

• basilic

• radial

• ulnar

Answer explanation

The cephalic vein is located on the lateral side of the upper extremity and is considered a superficial vein. In contrast, the basilic vein is on the medial side, while the radial and ulnar veins are deeper and associated with the forearm.

Which is true of systemic circulation?

• carries deoxygenated blood from the heart to the lungs and back to the heart
  
  

• carries oxygenated blood from the heart to the lungs and back to the heart

• carries oxygenated blood from the heart and delivers it throughout the body

• carries deoxygenated blood from the heart and delivers it throughout the body

Answer explanation

Systemic circulation carries oxygenated blood from the heart to the rest of the body, delivering oxygen and nutrients. The other options incorrectly describe pulmonary circulation or the flow of deoxygenated blood.

Blood leaves the left ventricle of the heart by the

• pulmonary artery

• pulmonary veins

• aorta

• SVC

• IVC

Answer explanation

Blood leaves the left ventricle through the aorta, which is the main artery supplying oxygenated blood to the body. The pulmonary artery carries blood to the lungs, while the pulmonary veins return it to the left atrium.

Which of the following is the deep vein on the medial side of the forearm?

• cephalic

• basilic

• radial

• ulnar

Answer explanation

The ulnar vein is located on the medial side of the forearm, making it the correct choice. The cephalic vein is on the lateral side, while the basilic vein is also deep but not specifically medial.

What are the two main circulatory routes?

• lymph vascular system and blood vascular system

• pulmonary circulation and systemic circulation

• lymph circulation and systemic circulation

• blood circulation and pulmonary circulation

Answer explanation

The two main circulatory routes are pulmonary circulation, which carries blood to the lungs for oxygenation, and systemic circulation, which delivers oxygenated blood to the rest of the body. Thus, the correct answer is pulmonary circulation and systemic circulation.

Blood leaves the right ventricle of the heart by the

• pulmonary trunk

• pulmonary veins

• aorta

• SVC

• IVC

Answer explanation

Blood leaves the right ventricle through the pulmonary trunk, which carries deoxygenated blood to the lungs for oxygenation. The other options do not serve this function.

Which of the following veins form the brachial vein?

• radial and ulnar

• basilic and radial

• basilic and ulnar

• axillary and subclavian

Answer explanation

The brachial vein is formed by the union of the radial and ulnar veins, which drain blood from the forearm. The other options do not correctly represent the veins that combine to form the brachial vein.

Which of the following veins form the axillary vein?

• radial and ulnar

• basilic and radial

• basilic and ulnar

• axillary and subclavian

• basilic and brachial

Answer explanation

The axillary vein is formed by the union of the basilic vein and the brachial veins. The other options do not correctly represent the veins that contribute to the formation of the axillary vein.

Which vessel is associated with coronary circulation?

• ascending aorta

• aortic arch

• descending aorta

• pulmonary artery

• pulmonary vein

Answer explanation

The ascending aorta is the main vessel that carries oxygenated blood from the heart to the body, including the coronary arteries that supply blood to the heart muscle itself, making it essential for coronary circulation.

What are the two subdivisions of the circulatory system?

• lymph vascular system and blood vascular system

• pulmonary circulation and systemic circulation

• lymph circulation and systemic circulation

• blood circulation and pulmonary circulation

Answer explanation

The circulatory system has two main subdivisions: the lymph vascular system, which transports lymph, and the blood vascular system, which circulates blood. This makes the correct answer 'lymph vascular system and blood vascular system'.