UNIT 1Intro to Structure and Function

Directional Orientation

Guiding Questions:

1. What does directional orientation tell you about a patient?

2. Make a chart of the various directional orientation terms

3. Why would a veterinarian and a doctor have a disagreement about the words anterior, ventral, posterior, and dorsal?

Why get so technical?

Communicates precise information Used in procedures, therapies

Directional Orientation

Explains a particular view of a person/subject

Biped vs. Quadruped

Directional Planes

Guiding Questions:

1. How are directional planes different from directional orientation terms?

2. Make a chart of the various directional planes terms

DirectionalPlanes

Views of imaginary lines sliced through a person/subject

“Midsagittal” Plane

Positions

Guiding Questions:

1. What do position terms indicate?

2. Why do you think there are so many different positions?

Some Positional Examples

Dorsal recumbent Knee-chest Lithotomy Sim’s Sitting Trendelenberg

Mod.

Why so many positions to know? Trendelenberg

Allows better access to the pelvic organs as gravity pulls the intestines away from the pelvis

Increases blood flow to the brain Sitting

Examination of heart, lungs,

head, eyes, ears, nose throat

More positions: Fowler’s position

Promote drainage or ease breathingUpper body may be reclined

Knee-chest position Used for rectal and vaginal examinations and as

treatment to bring uterus into normal position

Even more positions!

Dorsal recumbentVaginal examinationsObstetrical forceps

Supine – Palpating internal organs, front of body

Almost done!

ProneUsed to examine spine and back, legs

Sim’sused for rectal examination, treatments and enemas

LithotomyExamination of pelvic organs

A little practice…

Work through the different slides here