Chapter 2: General Anatomy and Radiographic Positioning Terminology Flashcards
What plane divides the body into right and left parts
Sagittal plane
divides body into EQUAL right and left halves
Mid sagittal plane
divides the body into front and back parts
coronal plane
divides the body into EQUAL front and back parts
Midcoronal Plane
What plane enters the others at an angle?
oblique planes
The plane formed by biting the upper and lower teeth with jaw closed
Occlusal Plane
transects the body at the pelvis and iliac top of the crest
Interiliac plane
What are the 4 types of body habitus
Sthenic
Hyposthenic
Asthenic
Hypersthenic
What are the two types of body habitus that are considered average?
Sthenic and hyposthenic
What are the two types of body habitus that are considered extremes?
hypersthenic and asthenic
classification of bones
long bones
short bones
flat bones
irregular bones
sesamoid bones
What kind of bones are only found in limbs?
Long bones. consist of body and two enlarged articular ends
examples: femur, humerus and phalanges
What bones consist mainly of cancellous bone with a thin outer layer of compact bone?
short bones
examples: carpal and tarsal bones
What bones consist of two plates of a compact bone?
flat bones
examples: sternum, cranium and scapula
What kind of bones are peculiarly shaped?
irregular bones
examples: vertebrae, pelvic bones, and facial bones
Skeletel divisions
axial and appendicular skeletons
Bone development
primary ossification
secondary ossification
full growth into single bone
sesamoid bones
very small and oval
develop inside and beside tendons. protect the tendon from excessive wear
In terms of anatomic relationship what is the forward or front part of the body or of a part called?
anterior (ventral)
In terms of anatomic relationship what is the back part of the body or body part called?
posterior (dorsal)
in terms of anatomic relationship, what is the name of the angle that parts away from the head of the body called?
caudad
In terms of anatomic relationship, what is the name for the angle that parts towards the head of the body?
cephalad
medial (anatomic relationships)
towards the median plane of the body or toward the middle of a body part
deep (anatomic relationships)
far from the surface
lateral (anatomic relationships)
away from the median plane or away from the middle of a part
superficial (anatomic relationships)
near the skin or surface
ipsilateral (anatomic relationships)
parts on the same side of the body
contralateral (anatomic relationships)
parts on the opposite side of the body
distal (anatomic relationships)
farthest from the point of attachment or origin
proximal (anatomic relationships)
near the point of attachment or origin