Superior (Cranial)
Toward the head; e.g., the head is superior to the abdomen.
Inferior (Caudal):
Toward the feet; e.g., the feet are inferior to the head.
Anterior (Ventral)
Front of the body; e.g., the chest is anterior to the spine.
Posterior (Dorsal):
Back of the body; e.g., the spine is posterior to the stomach.
Medial
Toward the midline of the body; e.g., the nose is medial to the eyes.
Lateral
Away from the midline; e.g., the ears are lateral to the nose.
Proximal
Closer to the point of attachment; e.g., the shoulder is proximal to the hand.
Distal
Farther from the point of attachment; e.g., the fingers are distal to the elbow.
Sagittal Plane
Divides the body into left and right halves.
Midsagittal
Exactly down the midline.
Parasagittal
Offset from the midline.
Frontal (Coronal) Plane
Divides the body into front (anterior) and back (posterior) parts.
Transverse (Horizontal) Plane
Divides the body into upper (superior) and lower (inferior) parts.
Anatomical Position
-Standing upright
-Feet flat, slightly apart
-Arms at sides
-Palms facing forward
-Head level, eyes forward
-This standardized position allows consistent description of body parts and movements
Dorsal Cavity
Cranial Cavity: Contains the brain.
Vertebral (Spinal) Cavity: Contains the spinal cord.
Ventral Cavity
-Thoracic Cavity:
Contains lungs, heart, esophagus, trachea.
Divided by the mediastinum (which contains the heart and esophagus).
-Abdominal Cavity:
Contains stomach, intestines, liver, spleen, kidneys.
-Pelvic Cavity:
Contains bladder, reproductive organs, rectum.
Respiratory
Function:Gas exchange.
Key Structures:Lungs, trachea, bronchi
Cardiovascular
Function:Circulate blood. Key Structures:Heart, blood vessels
Nervous
Function Control & coordinate. Key Structures:Brain, spinal cord, nerves
Integumentary
Function:Protection, regulation. Key structures: Skin, hair, nails
Endocrine
Function:Hormone regulation. Key structures :Glands (pituitary, thyroid)
Digestive
Function:Nutrient absorption. Key structures: Stomach, intestines
Urinary
Function:Waste removal. Key structures: Kidneys, bladder.
Reproductive
Function:Reproduction Key structures: Ovaries, uterus (women)