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WorksheetsCirculatory system class 10
Total questions: 30
Worksheet time: 1hrs 12mins
Type of device that measures the electrical currents created by the SA and AV nodes?
AED
MRI
ECG
CAT Scan
Which choice below correctly identifies the layers of the heart from the most outer layer to the most inner layer?
epicardium, myocardium, endocardium
endocardium, myocardium, epicardium
myocardium, endocardium, epicardium
myocardium, epicardium, endocardium
The sac that surrounds and protects the heart?
endocardium
epicardium
myocardium
pericardium
Instrument used to measure blood pressure?
AED
ECG
Sphygmomanometer
ultrasound
Name part I.
pericardium
mediastinum
septum
unknownum
Name part M.
Tricuspid valve
Semilunar valve
Bicuspid valve
Mitral valve
A fish's heart has ___ chambers.
1
2
3
4
_______ function in the life-saving process of clotting blood.
Phagocytes
Leucocytes
Erythrocytes
Platelets
The blood in the vena cava is...
oxygenated, returning to the heart
deoxygenated, returning to the heart
oxygenated, leaving the heart
deoxygenated, leaving the heart
An open circulatory system is one that has:
no valves present
no heart to pump the fluid
no vessels at all
no distinction between blood and tissue fluid
Deoxygenated blood flow from the body cells to the heart via .....
Vena Cava
Aorta
Pulmonary artery
Pulmonary vein
The ...... separate the left atrium and the left ventricle
Semilunar valve
Bicuspid valve
Tricuspid valve
Aortic valve
The normal reading of systole and diastole is
100/50 mmHg
110/55 mmHg
120/80 mmHg
135/95 mmHg
All of the following are functions of blood except:
Transportation of oxygen and carbon dioxide.
Regulation of body temperature.
Synthesis of vitamins.
Defense against infection.
The most abundant compound in blood plasma, accounting
for about 92% of the total volume, is:
Oxygen
Gamma-globulin
Sodium chloride
Water
The myocardium is composed of:
An outer fibrous layer and an inner serous layer.
Cardiac muscle tissue.
A simple squamous epithelium and a layer of areolar connective tissue.
All of the following are true of the left ventricle except:
Wall is typically 3 times thicker than that of right ventricle.
It is separated from left atrium by Mitral valve.
Aortic semilunar valve at superior end separates it from the aorta.
Receives deoxygenated venous blood from the left atrium.
When blood is blocked to the brain, it causes...
a heart attack.
high blood pressure.
a stroke.
sickle cell anemia.
High blood viscosity will cause blood flow to...
decrease.
increase.
stay the same.
speed up & then slow down.
Which of the following is NOT a factor in affecting blood pressure?
blood volume.
age.
blood output.
resistance.
What is blood pressure?
Pressure of the blood against the walls of the veins.
Pressure of the heart pushing the blood out.
Pressure of the heart receiving blood.
Pressure of the blood against the walls of the arteries.
Which of the following is NOT a major factor affecting blood flow?
Heart size
Viscosity
Exercise
Plaque
Cholesterol is associated with which heart disease?
Arteriosclerosis
Atherosclerosis
SIckle Cell Anemia
Hypertension
What is the purpose of the circulatory system?
Transport Gases
Transport Nutrients
Maintain Body Temperature
Maintain Fluid Balance
The substance that makes up the majority of blood is:
Plasma
Lymph
Erythrocytes
Basophils
The pacemaker of the heart is the
SA Node
AV Node
Bundle of His
Purkinje Fibres
Electrical fibres running through the ventricles are called
SA Node
AV Node
Bundle of His
Purkinje Fibres
Arthropods have which type of circulatory system?
Double Circuit
Single Circuit
Closed
Open
Leukocytes that are involved in engulfing pathgens are
Basophils
Neutrophils
Lymphocytes
Eosinophis
