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PLTW: HBS EOC EXAM
REVIEW 2025 BRAND NEW ACTUAL
EXAM WITH ANSWERS.
1. What is extension? - correct answer -unbending movement
around limb joint that increases angle
2. What is flexion? - correct answer -bending movement around
joint in limb that decreases angle
3. What are cardiac muscles? - correct answer -striated muscle
that forms the wall of the heart
4. What are skeletal muscles? - correct answer -striated muscle
attached to bone to give body shape
5. What are smooth muscles? - correct answer -not striated
muscle that line hollow organs and blood vessels
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6. What is the epimysium? - correct answer -the outermost layer
of connective tissue
7. What is the perimysium? - correct answer -goes around the
muscle
8. What is the endomysium? - correct answer -surrounds each
individual muscle fiber
9. What is pulmonary circulation? - correct answer -right side of
heart collects deoxygenated blood, passed into right ventricle
to be pushed into lungs to pick up O2
10. What is systemic circulation? - correct answer -blood from
lungs comes back to left side of heart, moved into left ventricle
and into aorta to go into the body
11. What are arteries? - correct answer -large vessels to move
blood to the body
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12. What are capillaries? - correct answer -thin-walled blood
vessels to allow for small exchanges of material
13. What are veins? - correct answer -large vessels to move
blood to the heart
14. What are varicose veins? - correct answer -big, twisty veins
near the skin's surface that are caused by weakened valves
15. What is cardiac output? - correct answer -the amount of
blood the heart pumps per minute
16. What is stroke volume? - correct answer -how much blood is
pushed out by the left ventricle with each contraction
17. What is blood pressure? - correct answer -a measure of how
fast the molecules in blood are hitting walls of arteries
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18. What is the function of skin? - correct answer -
PROTECTION - first defense against pathogens
19. SENSATION - alerts body of danger through pain
20. TEMP. REG. - insulates, allows us to retain or lose heat
21. What tissue is the skin made of? - correct answer -Epithelial
tissue
22. What is the epidermis? - correct answer -the top layer of skin
23. What is the dermis? - correct answer -the second layer of
skin, also called the mesoderm
24. What is the hypodermis? - correct answer -the third layer of
skin
25. What are sebaceous glands? - correct answer -secrete
oily/waxy material to lubricate and waterproof skin and hair
PLTW: HBS EOC EXAM
REVIEW 2025 BRAND NEW ACTUAL
EXAM WITH ANSWERS.
1. What is extension? - correct answer -unbending movement
around limb joint that increases angle
2. What is flexion? - correct answer -bending movement around
joint in limb that decreases angle
3. What are cardiac muscles? - correct answer -striated muscle
that forms the wall of the heart
4. What are skeletal muscles? - correct answer -striated muscle
attached to bone to give body shape
5. What are smooth muscles? - correct answer -not striated
muscle that line hollow organs and blood vessels
, Page | 2
6. What is the epimysium? - correct answer -the outermost layer
of connective tissue
7. What is the perimysium? - correct answer -goes around the
muscle
8. What is the endomysium? - correct answer -surrounds each
individual muscle fiber
9. What is pulmonary circulation? - correct answer -right side of
heart collects deoxygenated blood, passed into right ventricle
to be pushed into lungs to pick up O2
10. What is systemic circulation? - correct answer -blood from
lungs comes back to left side of heart, moved into left ventricle
and into aorta to go into the body
11. What are arteries? - correct answer -large vessels to move
blood to the body
, Page | 3
12. What are capillaries? - correct answer -thin-walled blood
vessels to allow for small exchanges of material
13. What are veins? - correct answer -large vessels to move
blood to the heart
14. What are varicose veins? - correct answer -big, twisty veins
near the skin's surface that are caused by weakened valves
15. What is cardiac output? - correct answer -the amount of
blood the heart pumps per minute
16. What is stroke volume? - correct answer -how much blood is
pushed out by the left ventricle with each contraction
17. What is blood pressure? - correct answer -a measure of how
fast the molecules in blood are hitting walls of arteries
, Page | 4
18. What is the function of skin? - correct answer -
PROTECTION - first defense against pathogens
19. SENSATION - alerts body of danger through pain
20. TEMP. REG. - insulates, allows us to retain or lose heat
21. What tissue is the skin made of? - correct answer -Epithelial
tissue
22. What is the epidermis? - correct answer -the top layer of skin
23. What is the dermis? - correct answer -the second layer of
skin, also called the mesoderm
24. What is the hypodermis? - correct answer -the third layer of
skin
25. What are sebaceous glands? - correct answer -secrete
oily/waxy material to lubricate and waterproof skin and hair
