,1. Which of the following structures make up the integumentary system?
a. Skin, hair, nails, and glands
b. Heart, lungs, kidneys, and liver
c. Bones, muscles, and tendons
d. Brain, spinal cord, and nerves
Answer: a. Skin, hair, nails, and glands
Rationale: The integumentary system is composed of the skin, hair, nails,
and glands, all of which work together to protect the body from external
harm and regulate temperature.
2. Which layer of the skin contains blood vessels, nerves, and hair
follicles?
a. Epidermis
b. Dermis
c. Hypodermis
d. Subcutaneous tissue
Answer: b. Dermis
Rationale: The dermis is the middle layer of the skin, containing blood
vessels, nerves, and hair follicles, providing nourishment and sensation to
the skin.
3. Which skin condition is caused by an overproduction of sebum, leading
to clogged pores and inflammation?
a. Eczema
b. Psoriasis
c. Acne
d. Rosacea
Answer: c. Acne
Rationale: Acne is a common skin condition caused by excess oil
production, leading to clogged pores and inflammation, often affecting
adolescents and young adults.
, 4. Which of the following bones is part of the axial skeleton?
a. Femur
b. Humerus
c. Skull
d. Patella
Answer: c. Skull
Rationale: The axial skeleton includes the skull, vertebral column, and rib
cage, providing protection and support for the central axis of the body.
5. Which joint type allows for movement in multiple directions?
a. Hinge joint
b. Ball and socket joint
c. Pivot joint
d. Suture joint
Answer: b. Ball and socket joint
Rationale: Ball and socket joints allow for movement in multiple
directions, such as the shoulder and hip joints, providing a wide range of
motion.
6. Which of the following muscles is responsible for extending the elbow
joint?
a. Biceps brachii
b. Triceps brachii
c. Deltoid
d. Gluteus maximus
Answer: b. Triceps brachii
Rationale: The triceps brachii muscle is responsible for extending the
elbow joint, enabling movements like pushing and straightening the arm.
7. Which condition is characterized by a loss of bone density, leading to
fragile and brittle bones?
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