Ch. 1 - Body Planes, Thoracic Cavity, and Anatomical Positions Flashcards
Physiology?
The study of the function of the body organs
Osteology?
The study of bones
Describe anatomic position
Standing upright, arms at sides, palms forward, toes forward
What do body planes do?
They divide the body in reference to longitudinal axis
What are the four body planes?
Sagittal, coronal, horizontal (transverse), and oblique
Sagittal Planes
They divide the body into right and left halves
Runs anterior to posterior
Midsagittal plane
A special Sagittal plane that is also known as MSP
Coronal Plane
Divides the body into anterior and posterior
What is a special coronal plane?
Midcoronal plane (MCP)
What two planes divide the body into equal halves or portions?
Midsagittal Plane and the Midcoronal plane
Horizontal Plane
Passes through the body crosswise
Positioned at a right angle to MCP and MSP
Divides body into superior and inferior portions
Other names for horizontal plane
Transverse
Axial
Cross-sectional plane
Oblique plane
Passes through a body part at any angle
Name a very commonly used surface landmark
iliac crest
What do we use since we don’t have X-ray vision to find certain areas in the body?
External landmarks
What landmark can we feel for to find the level of T2 and T3?
Jugular Noch
The inferior angel of the scapula can help us find what level?
T7
What landmark can we feel for to find the level of T9 and T10?
Xiphoid process
What can the iliac crest help you determine the level of?
L4 & L5
Our anterior superior iliac spine can help us determine what level?
S1
Where is the anterior superior iliac spine?
The bump on the front side of your hip
What landmark can be used to help determine the level of C7?
Vertebral prominens (prominent spinal process)
EAM
External auditory meatus
Medial
An anatomic relationship term that means closer to the midline
As for anatomical relationship: The ulna is ___________ to the radius
Medial
Lateral
An anatomical relationship that means more towards the sides
As for anatomical relationship terms: the radius is ________ to the ulna.
Lateral
Central
An anatomical relationship that means mid area or main part of an organ
Peripheral
At or near the surface, edge, or outside of another body part
What two directional terms are only used when in reference to limbs?
Proximal and distal
Proximal
Nearer to the point of attachment
Distal
Further from the point of attachment
In reference to anatomical relationship terms: the ankle is _______ to the knee.
Distal
In reference to anatomical relationship terms: the femoral head is _______ to the femoral condyles.
Proximal
Palmar
Palm of the hand
Plantar
Sole of the foot
Dorsum
Anterior or top of the foot
Back of the hand
What two planes are perpendicular to each other?
The MCP and the MSP
Superficial
Near the skin or surface
Deep
Far from the skin
Parietal
Wall or lining of a body cavity
Visceral
Covering of an organ
Which is the outer most?
Visceral or Parietal
Parietal
Ipsilateral
Parts on the same side of the body
Contralateral
Parts on the opposite side of the body
What are the two great body cavities?
Thoracic and abdominal
What separates the abdominal and thoracic cavities?
The diaphragm
What does the thoracic cavity contain?
Heart and great vessel, Lungs, pleural membranes, trachea, esophagus, pericardium,
What does the abdominal (abdominopelvic) cavity contain?
Peritoneum, stomach, intestines, gallbladder, pancreas, spleen, liver, ureters, kidneys, major blood vessel.
What is in just the pelvic portion of the abdominal cavity?
Part of the reproductive organs, rectum, and bladder
The abdomen is divided in two methods known as what?
Quadrants and regions
What are the four quadrants of the abdomen?
RUQ, LUQ, RLQ, LLQ
Anatomy?
The study of the structure of the body
What are quadrants useful for?
To describe the location of various abdominal organs
What are the Regions of the abdomen?
There are 9 regions of the body:
Right hypochondrium, epigastrium, left hypochondrium, right lateral, umbilical, left lateral, right inguinal, hypogastrium, left inguinal
Which is used more often: regions or quadrants?
Quadrants
Body habitus
The common variations of the shape of the human body
Why is body habitus important to radiography?
Because it determines the size, shape and position of organs of the thoracic and abdominal cavity
What organs are affected by body habitus?
All
What are the types of body habits?
Asthenic - smallest (emaciation)
Hyposthenic - smaller than avg.
Sthenic - average
Hypersthenic - larger than average
Abduction
Movement away from the midline
Adduction
Movement toward the midline
Extension
Straightening of a joint
Flexion
Bending of a joint
Evert/ eversion
Outward turning of the foot at the ankle
Pinky toe comes up
Invert/ inversion
Inward turning of the foot at the ankle
Big toe comes up
Pronation
Rotation of the forearm so the palm is down
Rotates the forearm to where the end result is that the palm is facing down
Supination
Rotation of the forearm so that the palm is forward and up
Rotation / rotate
Turning of the body or part around its axis
Can either be internal rotation or external rotation
Rotation of the limb towards the midline is…
Internal rotation
Rotating a limb away from the midline is…
External rotation
Circumduction
Circular movement of a limb
Tilt
Tipping or slanting a body part slightly
Deviation
Turning away from the regular or standard course
Example: ulnar deviation) (on power point slide 36