Body Organization Flashcards
Caudal
Body parts located near sacral region or “tail”
Cranial
Body parts located near the head
Distal
Body parts away from the point of reference
Proximal
Body parts close to the point of reference
Dorsal/posterior
Body parts on the back of the body
Ventral/anterior
Body parts on the front of the body
Lateral
Body parts away from the midline
Medial
Body parts close to the midline
Inferior
Body parts below the transverse plane
Superior
Body parts above the transverse plane
Transverse plane
- horizontal plane that divides the body into a top and bottom half
- movement: rotation
Sagittal plane
- plane that divides the body into a right and left side
* movement: flexion/extension
Frontal/coronal plane
- plane that divides the body into front and back sections
* movement: abduction/adduction
Cell
- The entire body is made of cells
- The basic structures of cells are the cell membrane, nucleus, and cytoplasm
- all cells need food, water and oxygen to live and function
Tissue
- groups of cells that work together to perform the same task
- 4 types of tissue: connective, epithelial, muscle and nervous
Organs
• groups of tissues that work together to perform a specific function
Systems
- groups of organs working together to perform one of the body’s major functions
- Systems have separate and distinct functions, but rely on one another to perform their tasks
Epithelial tissue
Thin, flat and tightly packed so that they form a protective layer over underlying cells
Muscular tissue
Slender rods that attach at the ends of the structures they move
Nervous tissue
Usually have long, thin extensions that can transmit nerve impulses over a distance