What is the outermost layer of the skin called?

• dermis

• stratum corneum

• epidermis

• hypodermis

Which layer of the skin contains blood vessels and nerves?

• Subcutaneous layer

• Dermis

• Hypodermis

• Epidermis

What is the primary function of the epidermis?

• To produce sweat and oil.

• To regulate body temperature.

• To facilitate nutrient absorption.

• To act as a protective barrier.

What skin condition is characterized by red, itchy patches?

• Acne

• Rosacea

• Psoriasis

• Eczema

What is the role of the dermis in skin function?

• The dermis provides structural support, elasticity, and houses essential components for skin function.

• The dermis acts as a barrier against pathogens.

• The dermis primarily regulates body temperature.

• The dermis is responsible for producing melanin.

Which vitamin is synthesized in the skin upon exposure to sunlight?

• Vitamin A

• Vitamin D

• Vitamin E

• Vitamin C

What is the primary function of sweat glands?

• Filtering toxins from the blood.

• Generating energy for muscle movement.

• Regulating body temperature.

• Producing hormones.

What is the main function of the respiratory system?

• To filter and purify blood before it circulates.

• To produce hormones that control metabolism.

• To facilitate gas exchange (oxygen and carbon dioxide) between the body and the environment.

• To regulate body temperature through sweating.

Which structure in the respiratory system is responsible for gas exchange?

• Alveoli

• Lungs

• Trachea

• Bronchi

What is the primary muscle involved in breathing?

• pectoralis major

• diaphragm

• abdominal muscles

• intercostal muscles