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Anatomy & Physiology Key Concepts

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Termini in questo insieme (20)

  • What is the primary function of the skeletal system?

    The skeletal system provides support, protection for organs, movement via attachment points for muscles, mineral storage, and blood cell production.

  • Define homeostasis in physiology.

    Homeostasis is the body's ability to maintain a stable internal environment despite external changes.

  • What are the four main tissue types in the human body?

    Epithelial, connective, muscle, and nervous tissues.

  • Describe the structure of a typical neuron.

    A neuron has a cell body, dendrites that receive signals, and an axon that transmits impulses.

  • What is the role of the respiratory system?

    To facilitate gas exchange, bringing oxygen into the body and removing carbon dioxide.

  • Name the three types of muscle tissue.

    Skeletal, cardiac, and smooth muscle tissues.

  • What is the function of the integumentary system?

    Protects the body, regulates temperature, and prevents water loss through the skin, hair, and nails.

  • Explain the difference between anatomy and physiology.

    Anatomy studies the structure of body parts; physiology studies their function.

  • What is the basic unit of life in the human body?

    The cell is the basic structural and functional unit of life.

  • Define the term 'organ system'.

    An organ system is a group of organs that work together to perform complex functions.

  • What is the function of red blood cells?

    To carry oxygen from the lungs to body tissues and transport carbon dioxide back to the lungs.

  • Describe the role of the cardiovascular system.

    It transports blood, nutrients, gases, and wastes throughout the body via the heart and blood vessels.

  • What is the function of the digestive system?

    To break down food into nutrients for absorption and eliminate waste.

  • Name the layers of the skin.

    Epidermis, dermis, and hypodermis (subcutaneous layer).

  • What is the function of the lymphatic system?

    To return excess fluid to the bloodstream and provide immune defense.

  • Define the term 'metabolism'.

    Metabolism is the sum of all chemical reactions that occur in the body to maintain life.

  • What is the role of the endocrine system?

    To regulate body functions through hormones secreted by glands.

  • Explain the difference between axial and appendicular skeleton.

    Axial skeleton includes the skull, vertebral column, and rib cage; appendicular skeleton includes limbs and girdles.

  • What is the function of the nervous system?

    To control and coordinate body activities by transmitting electrical signals.

  • Describe the process of muscle contraction briefly.

    Muscle contraction occurs when actin and myosin filaments slide past each other, shortening the muscle fiber.