Heart

Bicuspid valve is also called __________ tricuspid mitral pulmonary aortic

mitral

Parasympathetic activity causes: a. Decrease heart rate and cardiac out put b. decrease in heart rate and increase in cardiac output c. increase in heart rate and cardiac output d. no change

a. Decrease heart rate and cardiac out put

The lining of the heart chambers is called the __________

endocardium

The tricuspid valve is also called the atrioventricular valve True False

true

Match the following terms with their correct descriptions. tricuspid valve: mitral valve: aortic semilunar valve: pulmonary semilunar valve: 1. valve between the right atrium and right ventricle 2. prevents backflow of blood into the left ventricle 3. prevents backflow of blood into the right ventricle 4. valve between the left atrium and left ventricle

tricuspid valve: valve between the right atrium and right ventricle mitral valve: valve between the left atrium and left ventricle aortic semilunar valve: prevents backflow of blood into the left ventricle pulmonary semilunar valve: prevents backflow of blood into the right ventricle

Systemic vein pulmonary arteries pulmonary veins aorta vena cava

vena cava

The first heart sound is the closing of: AV valves Semilunar valves

AV valves

The average blood pressure is 120/80 80/120 115/180 120/180

120/80

How many chambers does the heart have ? a. 4 b. 6 c. 3 d. 1

4

Vessel that carries oxygenated blood toward the heart 1. vena cava 2. aorta 3. pulmonary artery 4. pulmonary vein

4. pulmonary vein

The impulse is delayed briefly here to give atria time to finish contracting. SA node AV node AV bundle Purkinje fiber

AV node

Which vessels carry blood away from the heart? Veins Arteries Capillaries

Arteries

Which of the following is correct regarding the flow of blood in reference to the left side of the heart?

Blood flows from the left atrium, through the bicuspid valve, into the left ventricle, through the aortic semilunar valve, and then into the aortic arch.

Which of the following is correct regarding blood flow in reference to the right side of the heart?

Blood flows from the right atrium through the tricuspid valve, into the right ventricle, through the pulmonary semilunar valve, into the pulmonary trunk, and then into the pulmonary arteries.

What makes up the Circulatory System? Heart, Brain, Lungs Heart, Blood, Blood Vessels Heart, Senses, Blood Vessels Heart, Lungs, Blood Vessels

Heart, Blood, Blood Vessels

This is the thickest layer of the heart Pericardium Endocardium Myocardium Epicardium

Myocardium

Which part of the heart pumps deoxygenated (oxygen-poor) blood? a. Left side b. Right side c. Top side d. Bottom side

Right Side

Match the following terms to their correct descriptions. Right marginal artery: Posterior interventricular artery: Anterior interventricular artery: Circumflex artery: 1. supplies blood to the interventricular septum and anterior walls of both ventricles 2. supplies blood to the lateral right side of the myocardium 3. supplies blood to the left atrium and posterior walls of the left ventricle 4. runs to the apex of the heart

Right marginal artery: supplies blood to the lateral right side of the myocardium Posterior interventricular artery: runs to the apex of the heart Anterior interventricular artery: supplies blood to the interventricular septum and anterior walls of both ventricles Circumflex artery: supplies blood to the left atrium and posterior walls of the left ventricle

What is the main function of the heart ? a. The heart circulates blood and oxygen throughout the body. b. The heart is the control centers for all body activities. c. The heart gets rid of the wastes in your body produced by homeostasis. d. The heart transports , protection and regulation. Blood transports the following substances:

The heart circulates blood and oxygen throughout the body.

True or False: In the fetus, blood from the left and right sides of the heart normally mix.

True

Which of the following is a difference between cardiac muscle and skeletal muscle?

Unlike skeletal muscle cells, cardiac muscle cells can be autorhythmic.

Which vessels carry blood to the heart? Veins Arteries Capillaries

Veins

The three layers of the heart are as follows: a. Myocardium,pericardium,endocardium b. Myocardium,epicardium,endocardium c. Myocardium,endocarditis,endocardium d. Myocardium,exocardium,pericardium

a. Myocardium,pericardium,endocardium

Sue's blood pressure is 118/78. a. Systolic is 118, diastolic is 78 b. Diastolic is 118, systolic is 78 c. She has hypertension d. She has hypotension

a. Systolic is 118, diastolic is 78

The superior chambers of the heart are called the __________.

atria

The P wave of an electrocardiogram represents __________.

atrial depolarization

Blood pressure above 140/90 a. Hypotension b. Hypertension c. Strokes d. plaque

b. Hypertension

_______ circulation takes blood from the heart to the lungs and back. a. Systemic b. Pulmonary c. Body d. Blood

b. Pulmonary

During the dub phase of the heat beat a. mitral and tricuspid valves close b. aortic and pulmonic valves close c. all valves are closed d. all vales are open

b. aortic and pulmonic valves close

Which one of the following is the correct pathway of gas exchange? a. vein-venule-capillary-arteriole-artery b. artery-arteriole-capillary-venule-vein c. venule-vein-capillary-artery-arteriole d. capillary-arteriole-artery-venule-vein

b. artery-arteriole-capillary-venule-vein

Which of the following is also known as the mitral valve?

bicuspid

What function does the Heart Muscle perform? a. separates blood platelets, white blood cells and red blood cells b. is a voluntary muscle that only beats when you move c. causes blood to flow throughout the body by it's pumping action d. carries only oxygenated blood to the lungs

c. causes blood to flow throughout the body by it's pumping action

Systole is defined by a. contraction of ventricles b. relaxation of ventricles c. contraction of atria

c. contraction of ventricles

Match the following terms to their correct descriptions. cardiac cycle: systole: diastole: stroke volume: cardiac output: 1. contraction 2. the volume of blood pumped by one ventricle with each heartbeat 3. the events associated with blood flow through the heart during one complete heartbeat 4. relaxation 5. the amount of blood pumped by each ventricle in one minute

cardiac cycle: the events associated with blood flow through the heart during one complete heartbeat systole: contraction diastole: relaxation stroke volume: the volume of blood pumped by one ventricle with each heartbeat cardiac output: the amount of blood pumped by each ventricle in one minute

The second heart sound (the 'dup' of 'lub-dup') is caused by the __________.

closure of the semilunar valves

Which is correctly paired?

ectopic focus: an abnormal pacemaker

Is the Heart a voluntary or involuntary muscle?

involuntary

Into which chamber of the heart do the pulmonary veins deliver blood?

left atrium

Freshly oxygenated blood is delivered to the __________ and then it passes into the __________ to be pumped to the entire body.

left atrium; left ventricle

The most muscular chamber of the heart is the __________.

left ventricle

The right ventricle is the chamber of the heart that pumps blood for the pulmonary circulation. Based on this information, blood from the right ventricle is on its way to the __________.

lungs

Carotid artery is located in the: armpit groin neck leg

neck

Which ANS branch is controlled by the medulla oblongata and vagus nerve? parasympathetic sypathetic

parasympathetic

Which of the following would lead to a decrease in heart rate?

parasympathetic stimulation

Blood enters the right atrium through the: pulmonary veins vena cavas pulmonary arteries aorta

vena cavas

The perkinje fibers cause: a. atria to contract b. ventricles to contract toward apex c. ventricles to contract superiorly that begins at apex and moves toward atrium d. delay in depolarization

ventricles to contract superiorly that begins at apex and moves toward atrium