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Human Biology Exam chapters 5, 6 and 7 with verified answers
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Human Biology Exam chapters 5, 6 and 7 with verified answers
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Human Biology Exam chapters 5, 6 and7
What are the two components of the CVS - correct answer ✔✔Heart and blood vessels
Which of the following blood vessels are small, thin and porous enough to exchange substances at the
tissue level of organization - correct answer ✔✔Capillaries
What is the role of the lymphatic system associated with the CVS - correct answer ✔✔Collecting excess
tissue fluids and returning it to the CVS
What structure within a capillary bed shunts blood from the arteriolar to the venule - correct answer
✔✔Pre capillary sphincter
When dissecting a specimen, Barry noticed that the arteries were thicker and more elastic then the
veins. Why? - correct answer ✔✔Arteries are under greater pressure
Choose the most correct answer concerning cappilaries - correct answer ✔✔The only site of nutrient,
gas exchange and waste exchange is the capillaries
What is the function of the valves in the veins - correct answer ✔✔Prevent the backward flow of blood
At any one time, where is the majority of the blood found in the body - correct answer ✔✔Veins
What is the name of the thick, membranes sac that surrounds and protects the heart - correct answer
✔✔Pericardium
What are the upper chambers of the heart called - correct answer ✔✔Atria
, A hospital laboratory technician injects a dye into a vein in your right arm. What is the first chamber of
the heart that the dye will reach - correct answer ✔✔Right atrium
Blood leaves which chamber of the heart to enter the lungs - correct answer ✔✔Right ventricle
What is considered the pacemaker of the heart - correct answer ✔✔The sinoatrial node
Which part of the brain contains the cardiac control center - correct answer ✔✔Medulla oblongata
Where in the body is blood pressure the highest - correct answer ✔✔Aorta
Which of the following is not a function of blood - correct answer ✔✔Pumping
What are the functions of blood - correct answer ✔✔Regulate, transport, defense and carry oxygen
The two major components of blood are - correct answer ✔✔Formed elements, and plasma
Which of the following are cell fragments and not while cells - correct answer ✔✔Platelets
RBCs are better known as and WBCs are better known as - correct answer ✔✔Erythrocytes and
leukocytes
What makes the blood red - correct answer ✔✔Hemoglobin
Mature human red blood cells - correct answer ✔✔Binconcave discs without a nucleus
What hormone produced in the kidneys stimulates production of trend blood cells - correct answer
✔✔Erythropoietin
Agglutination refers to the - correct answer ✔✔Clumping of red blood cells
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