Medical Terminology Simplified

(Grace) #1
2–44 The frontal (coronal) plane is commonly used to take an anter/o/poster/ior
(AP) chest radiograph, indicating that the x-ray beam enters the body on the anterior
side and exits the body on the ____________________ / __________side. The radi-
ograph produced shows a view from the front of the chest toward the back (of the body).

2–45 In the previous frame, you learned that anter/o/poster/ior is used in
radi/o/logy to describe the direction or path of an x-ray beam. The CF radi/o
means radiation; x-ray; radius (lower arm bone on thumb side).
The suffix -logy means ____________________ __________.

2–46 Use radi/oto form a word that means study of radiation or x-rays:
__________ / _____ / __________.

2-47 Identify the abbreviation in Frame 2–45 that designates the path of an x-ray

beam from the anterior to the posterior part of the body: __________.

Body Cavities


2–48 Body cavitiesare hollow spaces within the body that help protect, separate,
and support internal organs. There are four body cavities: two dors/al cavities, which
are located in the back (posterior) part of the body, and two ventr/al cavities, which
are located in the front (anterior) part of the body. The thorac/ic and abdominal
cavities are separated by a muscular wall known as the diaphragm.Because the ab-
dominal and pelvic cavities are not separated by a wall, they are commonly referred
together as the abdominopelvic cavity.Review Figure 2–3 to study the location of
the dors/al cavities.

2–49 The dors/al cavity is subdivided into the (1) crani/aland (2) spin/alcavi-
ties. The crani/al cavity is encased by the skull and contains the brain; the spin/al
cavity contains the spinal cord.
Practice building words that refer to the body cavities by building a term that means
pertaining to the cranium (skull):__________ / __________
pertaining to the spine:__________ / __________

2–50 The (3) diaphragm is a dome-shaped muscle that plays an important role in
breathing. It separates the thorac/ic cavity from the abdomin/o/pelv/ic cavity. Lo-
cate the diaphragm in Figure 2–3.

2–51 Let us review some of the elements in the previous frame. Indicate the root
that refers to the
pelvis:____________________
chest:____________________
abdomen:____________________

Boldfaceindicates a word root or combining form. Blueindicates a suffix. Pinkindicates a prefix.


44 CHAPTER 2• Body Structure


poster/ior
pŏs-TĒ-rē-or

study of

AP

crani/al
KRĀ-nē-ăl

spin/al
SPĪ-năl

pelv

thorac

abdomin

radi/o/logy
rā-dē-ŎL-ō-jē
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