HESI A2 test A&P - Circulatory System

Which of the following is not a function of the circulatory system?

Regulation of blood sugar

Which of the following is a function of blood?

Transport of gases

Which type of blood cell transports oxygen?

Erythrocytes

Which of the following components of blood is correctly paired with its function?

Lymphocytes-acquired immunity

Which type of blood cell is responsible for clotting?

Platelets

Where does erythropoiesis take place?

Red bone marrow

What is the shape of an erythrocyte?

Biconcave

What is the function of hemoglobin?

Transporting oxygen

Which of the following leukocytes is part of the acquired immune system?

Lymphocyte

The muscular layer of the heart is called _________.

Myocardium

Which of the following describes the cardiac cycle?

The sequence of mechanical and electrical events taking place in the heart from the beginning of one heartbeat to the next

The left atrium receives blood from the ______.

Pulmonary vein

The pulmonary artery supplies blood to the __________.

Lungs

Which of the following correctly describes the flow of blood through the heart after the vena cava drains into the heart?

Right atrium-right ventricle-pulmonary artery-pulmonary vein-left atrium-left ventricle

The pacemaker of the heart is the _____________.

SA node

The specialized neuromuscular tissue found in the atrial septum near the atrioventricular septum is called

AV node

The purkinje fibers conduct impulses to the ____________.

Ventricles

What does the EKG do?

Records electrical activity of the heart

Which of the following describes the ventricular systole?

Ventricular contraction

Sam has a blood pressure of 120/80mmHg. 80 represents the ___________.

The pressure in the arteries during diastole