Podcast Beta
Questions and Answers
Which of the following is a function of the skin?
What is the composition of hair?
Which part of the body is responsible for hearing and maintaining balance?
What are the key components of the eye?
Signup and view all the answers
What is the main function of nails?
Signup and view all the answers
Study Notes
Functions of the Skin
- Acts as a protective barrier against pathogens, UV radiation, and physical damage.
- Regulates body temperature through sweat production and blood vessel dilation.
- Provides sensory information through receptors for touch, pain, and temperature.
- Aids in the synthesis of vitamin D when exposed to sunlight.
Composition of Hair
- Primarily composed of a protein called keratin, which also forms nails and the outer layer of skin.
- Made up of three layers: the medulla (innermost), cortex (middle), and cuticle (outer protective layer).
- Contains melanin, responsible for hair color, varying in amounts among individuals.
Ear and Balance
- The inner ear is responsible for hearing and maintaining balance.
- Contains the cochlea for sound processing and the vestibular system for balance.
- Includes structures like the semicircular canals, which detect head position and motion.
Key Components of the Eye
- Cornea: transparent front part that refracts light.
- Lens: adjusts shape to focus light on the retina.
- Retina: light-sensitive layer at the back of the eye where images are processed.
- Optic nerve: transmits visual information from the retina to the brain.
Main Function of Nails
- Protects the tips of fingers and toes from injury and trauma.
- Enhances fine motor skills and precise handling of objects.
- Contains keratin, providing strength and durability.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of human anatomy and physiology with this quiz covering the different parts and systems of the human body. From organs and tissues to anatomical structures, this quiz provides detailed information to enhance your understanding of the human body.
