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Anatomy & Physiology: Anatomical Terms, Body Cavities, and Planes

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  • What is the anatomical position?

    Standing up, hands at the sides, palms facing forward, feet together.

  • Define 'Superior' in anatomical terms.

    A structure located above another. Example: The nose is superior to the mouth.

  • Define 'Inferior' in anatomical terms.

    A structure located below another. Example: The mouth is inferior to the nose.

  • What does 'Anterior' mean in anatomy?

    A structure toward the front of the body. Example: The xiphoid process is anterior to the lungs.

  • What does 'Posterior' mean in anatomy?

    A structure toward the back of the body. Example: The spine is posterior to the lungs.

  • Explain 'Distal' and give an example.

    Farther from the point of attachment to the body. Example: The hands are distal to the elbow.

  • Explain 'Proximal' and give an example.

    Closer to the point of attachment to the body. Example: The elbow is proximal to the phalanges.

  • What does 'Lateral' mean?

    Away from the midline of the body. Example: The shoulder is lateral to the clavicle.

  • What does 'Medial' mean?

    Toward the midline of the body. Example: The lips are medial to the ear.

  • Define 'Superficial' and 'Deep'.

    Superficial: Toward the surface of the body. Deep: Away from the body surface. Example: Skin is superficial to the heart; lungs are deep to the ribs.

  • What is the 'Dorsal' direction?

    Toward the back. Example: The spine is dorsal to the breastbone.

  • What is the 'Ventral' direction?

    Toward the front. Example: The navel is ventral to the spine.

  • Name the two main body cavities and their general contents.

    Thoracic cavity (lungs, heart) and abdominopelvic cavity (digestive, urinary, reproductive organs).

  • What separates the thoracic cavity from the abdominopelvic cavity?

    The diaphragm, a muscular sheet.

  • What is the pericardium and its function?

    A delicate serous membrane lining the pericardial cavity; secretes fluid to reduce friction and allows heart movement.

  • Define 'retroperitoneal' organs with examples.

    Organs located behind the peritoneal lining, e.g., kidneys and pancreas.

  • What are the pleural cavities and what do they contain?

    Two cavities each enclosing a lung, lined by the pleura serous membrane.

  • Describe the mediastinum and its contents.

    Connective tissue mass between pleural cavities containing the pericardial cavity and heart.

  • What are the three anatomical planes?

    Frontal (coronal), sagittal (median), and transverse (horizontal) planes.

  • What is the function of serous membranes in body cavities?

    They line cavities and cover organs, secreting fluid to reduce friction during organ movement.