Exam 1: BIOS 255 / BIOS255 (Latest 2025/ 2026 Update) Anatomy and Physiology III |Questions with Verified Answers| 100% Correct| Grade A -Chamberlain.

Exam 1: BIOS 255 / BIOS255 (Latest 2025/
2026 Update) Anatomy and Physiology III
|Questions with Verified Answers| 100%
Correct| Grade A -Chamberlain.

Question:

where does the breakdown of red blood cells start??
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Answer:
in a macrophage
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Question:
what is the process of emigration/extravasation and what subtype of
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WBC's most commonly conduct it?
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Answer:

WBCs leaving vessels and migrating to external infections- neutrophils
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and monocytes
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Question:
what classifies an individual as anemic??
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,Answer:
they have reduced oxygen-carrying capacity of blood
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Question:

list the physical characteristics of cardiac muscle cells?
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Answer:
intercalated discs, nuclei, striations, gap junctions
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Question:
what is the driver of the heart conduction system? and what happens if it
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fails??

Answer:

the SA(sinoatrial node)-and if it fails the AV node takes over
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Question:

when valves close, what type of wave is observed on a pressure chart??
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Answer:

the dicrotic wave
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,Question:
what are 3 'systems' of blood circulation that we discussed in class??
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Answer:

pulmonary system i,-




systemic system i,- i,-




coronary system i,-




Question:

during ventricular systole, what is happening to the blood volume within
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the ventricle??
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Answer:
first, there is no change-once pressure is great enough and the semilunar
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valves one, volume drops
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Question:

what 3 veins empty into the right atrium?
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Answer:

superior vena cava, inferior vena cava, coronary sinus
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Question:

, an individual has an increase in afterload, what effect would this have on
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MAP?

Answer:

an increase in afterload=decrease in SV=decrease in CO=decrease in MAP
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Question:

what are two unique structures the fetus heart has and not the adult
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heart??
Answer:
foramen ovale and ductus arteriosus
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Question:

What are the blood cells responsible for carrying oxygen to body tissues?
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Astrocytes

Osteocytes
Thrombocytes

Erythrocytes

Leukocytes?
Answer:

Erythrocytes