Unit 4: Human Body Systems and Health

Question 1 of 28

1. Question

1 point(s)

Which of the following is NOT a function of the integumentary system?

Regulating body temperature

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Producing hormones

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Sensory perception

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Protecting internal organs

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Excreting waste products

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Question 2 of 28

2. Question

1 point(s)

What is the primary function of human hair?

Producing vitamin D

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Providing insulation

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Sensing temperature changes

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Facilitating nutrient absorption

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Protecting against UV radiation

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Question 3 of 28

3. Question

1 point(s)

Which layer of the skin contains blood vessels responsible for thermoregulation?

Epidermis

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Dermis

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Hypodermis

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Cuticle

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Medulla

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Question 4 of 28

4. Question

1 point(s)

What is the role of sebaceous glands in the integumentary system?

Producing sweat for thermoregulation

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Lubricating and protecting hair shafts

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Secreting ear wax for protection

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Regulating body temperature

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Producing breast milk after giving birth

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Question 5 of 28

5. Question

1 point(s)

Which skin disorder is caused by the herpes simplex virus?

Acne

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Eczema

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Hives

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Cold sore

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Carbuncle

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Question 6 of 28

6. Question

1 point(s)

Which of the following is not parts of integumentary?

Hair

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Skin

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Glands

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Nail

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Kidney

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Question 7 of 28

7. Question

1 point(s)

The middle layer of the skin is:

Dermis

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Hypodermis

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Epidermis

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Endodermis

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Question 8 of 28

8. Question

1 point(s)

The outer layers of the hair are:

Medulla

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Cuticle

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Cortex

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None

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Question 9 of 28

9. Question

1 point(s)

What are skeletal muscles?

Muscles found in the heart.

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Muscles lining the inside of organs.

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Muscles that can be consciously controlled.

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Muscles responsible for involuntary actions.

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Question 10 of 28

10. Question

1 point(s)

Where are smooth muscles primarily found?

Attached to bones.

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In the heart.

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Lining blood vessels and organs.

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Controlling heartbeat.

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Question 11 of 28

11. Question

1 point(s)

Which type of muscle is auto-rhythmic and found exclusively in the heart?

Skeletal muscle

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Smooth muscle

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Cardiac muscle

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Striated muscle

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Question 12 of 28

12. Question

1 point(s)

What is the function of skeletal muscles?

Pumping blood

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Involuntary actions

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Controlling movement of bones

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Stimulating contractions in the heart

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Question 13 of 28

13. Question

1 point(s)

What property allows muscles to be stretched?

Contractility

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Extensibility

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Excitability

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Elasticity

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Question 14 of 28

14. Question

1 point(s)

What characteristic describes the ability of a muscle to recover its size and shape after deformation?

Contractility

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Extensibility

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Excitability

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Elasticity

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Question 15 of 28

15. Question

1 point(s)

Which of the following is NOT a major muscle disease or disorder?

Muscular dystrophy

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Muscle strains

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Cardiac arrest

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Skeletal muscle weakness

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Question 16 of 28

16. Question

1 point(s)

What is the main manifestation of muscle disorders?

Skeletal muscle strength

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Weakness and wasting of muscle tissue

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Increased flexibility

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Enhanced muscle tone

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Question 17 of 28

17. Question

1 point(s)

Where do muscle strains commonly occur?

Neck

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Lower back

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Shoulders

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Abdomen

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Question 18 of 28

18. Question

1 point(s)

Which of the following is a symptom of muscular dystrophy?

Increased muscle strength

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Wasting away of muscle tissue

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Enhanced flexibility

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Improved coordination

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Question 19 of 28

19. Question

1 point(s)

What are the structural components of the skeletal system?

Muscles and tendons

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Bones and ligaments

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Cartilage and tendons

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Ligaments and cartilage

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All the above

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Question 20 of 28

20. Question

1 point(s)

How many bones does an adult human skeleton typically contain?

106

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150

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206

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250

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Question 21 of 28

21. Question

1 point(s)

Which type of bone is typically thin, flat, and curved?

Long bones

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Short bones

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Flat bones

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Irregular bones

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Question 22 of 28

22. Question

1 point(s)

What is the function of cartilage in the skeletal system?

Provides flexibility and elasticity support

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Connects muscle to bone

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Holds bones together at joints

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Supports body weight

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Question 23 of 28

23. Question

1 point(s)

What is the role of tendons in the skeletal system?

Connect bone to bone

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Hold bones together at joints

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Connect muscle to bone

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Provide flexibility and elasticity support

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Question 24 of 28

24. Question

1 point(s)

Which type of joint allows movements in every direction?

Hinge joint

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Ball and socket joint

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Immovable joint

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Fixed joint

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Question 25 of 28

25. Question

1 point(s)

What is the main function of the human skeleton?

Produces blood cells

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Supports and protects the body

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Stores fat and minerals

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Provides flexibility for movement

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All the above

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Question 26 of 28

26. Question

1 point(s)

Which disease is characterized by thinning and weakening of bones?

Leukemia

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Osteopenia

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Osteoarthritis

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Osteoporosis

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Question 27 of 28

27. Question

1 point(s)

What is the function of bone marrow in the skeletal system?

Provides flexibility and elasticity support

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Produces blood cells

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Connects muscle to bone

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Supports body weight

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Question 28 of 28

28. Question

1 point(s)

Which type of bone is found in the wrist and ankle?

Long bones

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Short bones

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Flat bones

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Irregular bones

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Grade 8 General Science Unit 4: Human Body Systems and Health

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