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Worksheets4. Human Physiology CV System Anatomy
Total questions: 10
Worksheet time: 6mins
Which is NOT an anatomical structures of the CV system?
Blood
Blood vessels
periosteum
Heart
Which blood vessels carry blood to or from the lungs?
superior vena cava
aorta
pulmonary artery
pulmonary vein
When the heart is in systolic phase it is contracting, true or false?
true
false
Which of the following is the inner layer of the heart?
Visceral Pericardium
Myocardium
Endocardium
Parietal Pericardium
The heart is constructed of one long thin layer of muscle wrapped in a figure of eight.
True or False?
True
False
Which section of the blood vessel contains the smooth muscle?
Adventitia
Tunic Externia
Tunic Media
Tunic Intima
How many cells thick are capillaries?
1
2
3
4
How do veins aid venous return to the heart?
non return valves
narrow lumen
thick tunic media
muscles squeeze blood back towards the heart
How are erythrocytes designed to carry O2?
high heamoglobin content
Anuclear
Move in ameboid fashion
biconcave disk
Approximately what is the hematocrit in humans?
30-35%
35-40%
40-45%
45-50%
