LO 1 Flashcards
Define anatomy
Derived from two words that mean “cutting apart” - focuses on the structure of the human party by cutting apart through dissection or imaging
Define physiology
The study of the functions of living organisms and their parts - done through experimentation
What is the relationship of anatomy to physiology?
Anatomical structures are suited to perform specific functions (size, shape, form, or position in body related to ability to perform specialized activities)
What are the 7 levels of organization from smallest to largest?
- Chemical - atoms and molecules
- Organelle
- Cell - smallest living unit
- Tissue - organizations of similar cells that work together
- Organ - organizations of different tissues that work together
- Organ systems - organizations of many organs that work together
- Organism - the living thing
Define anatomical position
Standing erect with the arms at the sides and palms turned forward. Head and feet also point forward.
Describe supine position
Body laying down facing upward
Describe prone position
Body laying down facing down
Superior is the opposite of ______
Inferior
Anterior is the opposite of _______
Posterior
Medial means _______
Toward the midline
Lateral means ________
Toward the side of the body and away from midline
Proximal means ________
Toward the nearest trunk of the body or point of origin of one of its parts
Distal means _________
Away from or farthest from the trunk or point of origin
The opposite of superficial is _________
Deep
Describe the saggital plane
Lengthwise plane that divides the body into left and right sections (do not need to be equal sizes)
Describe the midsagittal plane
Divides the body into two equal left and right halves
Describe the frontal or coronal plane
Lengthwise plane that divides the body into anterior and posterior sections
Describe the transverse plane
Horizontal plane that divides the body into upper and lower sections
Name the two major body cavities
- Ventral - whole abdominal cavity
- Dorsal - cranial and spinal cavity
What cavities are included in the ventral body cavity?
- Thoracic cavity
- Abdominopelvic cavity
What divides the thoracic cavity from the abdominopelvic cavity?
The diaphragm
What are the two sections of the thoracic cavity?
- Pleural cavity
- Mediastinum
Describe the mediastinum
Mid-portion of the thoracic cavity - contains the heart and trachea
Describe the pleural cavities
Part of the thoracic cavity that contains the lungs - left lung in left cavity, right lung in right cavity