RT 103 Ch. 3, CA Flashcards
Name the 3 groups that the nine regions of the body are divided into, in the REGION method.
- Superior
- Middle
- Inferior
What 3 regions of the body are part of the superior group?
- Right hypochondrium
- Epigastrium
- Left hypochondrium
What 3 regions of the body are part of the Middle group?
Right lateral
Umbilical
Left lateral
If a patient is diagnosed as having epigastric pain what method of division would this be an example of?
Region method ( Nine region method)
If a patient is diagnosed as having RLQ pain, what method of division would this be an example of?
Quadrant method
Surface Landmarks- C1
Mastoid tip
Surface Landmarks- Cervical Area, C2, C3
Gonion, (Angle of mandible)
Surface Landmarks- Cervical Area, C3, C4
Hyoid Bone
Surface Landmarks- Cervical Area, C5
Thyroid cartilage
Surface Landmarks- Cervical Area- C7, T1
Vertebra prominens
Surface Landmarks- Thoracic area- T1
Approx. 2” (5cm) above level of the jugular notch
Surface Landmarks- Thoracic area- T2, T3
Level of Jugular notch
What 3 regions of the body are part of the Inferior group?
Right inguinal
hypogastrium
left inguinal
Surface landmarks - Thoracic Area - T4, T5
Level of sternal angle
Surface landmarks - Thoracic Area - T7
Level of inferior angles of scapulae
Surface landmarks - Thoracic Area - T9, T10
Level of xiphoid process
Surface landmarks - Lumbar Area - L2, L3
Inferior costal margin
Surface landmarks - Lumbar Area - L4, L5
Level of superiormost aspect of iliac crests
Surface landmarks - Sacrum and Pelvic Area - S1, S2
Level of anterior superior iliac spine (ASIS)
Surface landmarks - Sacrum and Pelvic Area - Coccyx
Level of pubic symphysis and greater trochanters.
Body Habitus
Common variations in the shape of the human body.
Why is the specific type of body habitus important in radiography?
Because it determines the size, shape, and position of the organs of the thoracic and abdominal cavities.
What does the body habitus directly affect the locations of which organs?
Heart Lungs Diaphragm Stomach Colon Gallbladder
What are the four body types of body habitus?
Sthenic (50% of population)
Asthenic (10% of population)
Hyposthenic (35% of population)
Hypersthenic (5% of population)
What percentage of the population has either Sthenic or Hyposthenic body habitus?
85%
What is the dominant type of body habitus?
Sthenic
Patients with Sthenic or Hyposthenic body habitus are referred to as what?
Ordinary or average
Sthenic (50% of population) organ placement
Heart: Moderately transverse
Lungs: Moderate length
Diaphragm: Moderately High
Stomach: High, upper left
Colon: Spread evenly, slight dip in transverse colon
Gallbladder: Centered on right upper abdomen
Sthenic (50% of population) characteristics
Build: Moderately heavy
Abdomen: Moderately long
Thorax: Moderately short, broad, and deep
Pelvis; Relatively small
Hyposthenic (35% of population)
Organs and characteristics for this habitus are intermediate between Sthenic and Asthenic body habitus types: this habitus is the most difficult to classify.
Asthenic (10% of population) organ placement
Heart: Nearly vertical and at midline
Lungs: Long, apices above clavicles, may be broader above base
Diaphragm: Low
Stomach: Low and medial, in the pelvis when standing
Colon: low, spreads in itself
Gallbladder: lower and nearer to the midline
Hypersthenic (5% of population) characteristics
Build: Massiver; described as having a barrell chest
Abdomen: Long
Thorax: Short, broad, deep
Pelvis; Narrow
Asthenic (10% of population) characteristics
Build: Frail
Abdomen: Short
Thorax: long, shallow
Pelvis; Wide
Hypersthenic (5% of population) organ placement
Heart: axis nearly transverse
Lungs: short, apices at or near clavicles
Diaphragm: High
Stomach: High and transverse, and i the middle
Colon: Around periphery of abdomen
Gallbladder: High, outside, lies more parallel.
How many bones does the adult human skeleton have?
206
What unites bones to the skeleton?
Ligaments
What do bones provide?
- Attachment for muscles
- Mechanical basis for movement
- Protection of internal organs.
- a frame to support the body
- Storage for calcium, phosphorus and other salts
- Production of red and white blood cells
What are the 2 main groups bones are divided in?
Axial skeleton and Appendicular skeleton
Axial Skeleton group of bone
supports and protects the head and trunk with 80 bones.
Appendicular skeleton group of bone
allows the body to move in various positions and from place to place with 126 bones
Axial skeleton - Skull 28 bones
Cranial - 8
Facial - 14
Axial skeleton - Neck 1 bone
Hydroid
Axial skeleton - Thorax 25 bones
Sternum - 1
Ribs - 24
Axial skeleton - Vertebral Column 26 bones
Cervical -7 Thoracic - 12 Lumbar - 5 sacrum - 1 Coccyx - 1
Appendicular skeleton - Shoulder Girdle 4 bones
Clavicles -2
Scapulae -2
Appendicular skeleton - upper limbs 60 bones
Humeri - 2 Ulnae - 2 Radii -2 Carpals - 16 metacarpals - 10 Phalanges -28
Appendicular skeleton - lower limbs 60 bones
Femora - 2 Tibias - 2 Fibuae -2 Patellae - 2 Tarsals -14 Metatarsals - 10 Phalanges -28
Appendicular skeleton - pelvic girdle 2 bones
Hip bones - 2
Bone Features
A spiculated network of interconnecting spaces; filled with red and yellow marrow
Trabeculae
(Don’t forget that this answer is part of the spongy bone feature, there is also a compact bone outer layer which is also a feature.)
Bones that have a central cavity;which contains trabeculae filled with yellow marrow. Name this type of bone?
Long Bones
The name of the cavity containing yellow marrow in long bones?
Medullary
This tough fibrous connective tissue covers all bony surfaces except the articular surfaces, which are covered by the articular cartilage.
Periosteum
The tissue lining the medullary cavity of bones is called?
Endosteum
The term given to the development and formation of bones?
Ossification
When do bones begin to develop?
In the 2nd month of embryonic life
Ossification
Bones that develop from fibrous membranes in the embryo produce the flat bones? Name the stage in ossification and bones.
Intermembranous; Bones of the skull, clavicles, mandible, and sternum
Ossification
Bones that develop from HYALINE CARTILAGE in the bone and produce the short, irregular and long bones. Name the Ossification.
Endochondral
Ossification
Begins BEFORE BIRTH and forms the entire bulk of the short and irregular bones, and forms the long central shaft in long bones.
Primary
What the long shaft of long bones is called
Diaphysis
Ossification
Occurs after birth when a separate bone begins to develop at both ends of each long bone.
Secondary
Name the end of each end of the long bone
Epiphysis
Name the type of bones found only in the limbs, and examples of these bones?
Long bones ; Femur, humerus, phalanges of fingers, and toes
Name the type of bone consisting of cancellous bone containing red marrow and have a thin outer layer of compact bone. Give examples.
short bones; carpal bones of the wrist and tarsal bones of the ankles
Name the type of bones which are named for their peculiar shape? Give examples.
Irregular bones; vertebrae and bones in the pelvis
Name the type of bones which are small and oval, and develop inside and beside tendons. Give examples
Sesamoid bones; Patella
The study of the joints, or articulations between bones.
Arthrology
Functional Classification:
Immovable joints
Synarthroses
Functional Classification
Slightly movable joints
Amphiarthroses
Functional Classification
Freely movable
Diarthroses
Name the three groups of joints?
Fibrous, Cartilaginous, Synovial
Name the three types of Fibrous joints?
Syndesmosis, Suture, Gomphosis
Structural Classification
Name this fibrous immovable or slightly movable joint united by sheets of fibrous tissue.
Also name the functional class.
Syndesmosis
Functional: Synarthroses or Amphiarthroses
Give an example of a Syndesmosis joint.
The inferior tibiofibular joint
Structural Classification
Name this fibrous immovable joint occuring only in the skull.
Also name the functional class.
Suture
Functional: Synarthroses
Structural Classification
Name this fibrous immovable joint occuring only in the roots of the teeth
Also name the functional class.
Gomphosis
Functional: Synarthroses
Name the two types of Cartilaginous joints:
Symphysis, Synchondrosis
Structural Classification
Name this cartilaginous slightly movable joint separated by a pad of fibrocartilage and designed for strength and shock absorbency.
Also name the functional class.
Symphysis
Functional: Ampiarthroses
Give an example of a symphysis joint:
The joint between the two pubic bones (pubic symphysis)
Structural Classification
Name this cartilaginous immovable joint that contains a rigid cartilage that units two bones.
Also name the functional class.
Synchondrosis
Funtional: Synarthrosis
Give an example of a synchondrosis joint:
The epiphyseal plate found between the epiphysis and diaphysis of a growing long bone.
Name the six types of Synovial joints:
- Gliding (or Plane)
- Hinge (or Ginglymus)
- Pivot (or Trochoid)
- Ellipsoid (or Condyloid)
- Saddle (or Sellar)
- Ball and Socket (Spheroid)
Structural Classification
Name this synovial joint with uniaxial movement, that permits slight movement, and contain flattened or slightly curved surfaces.
Also name the functional class.
Gliding (or Plane)
Funtional: Diarthroses
Give an example of a Gliding (or Plane) joint?
The intertarasal and intercarpal joints of the ankles and wrists.
Structural Classification
Name this synovial joint with uniaxial movement, that permits only flexion and extension:
Also name the functional class.
Hinge (or Ginglymus)
Functional: Diarthroses
Give an example of the Hinge (or Ginglymus) joint:
The elbow knee, and ankle
Structural Classification
Name this synovial joint with uniaxial movement, that permits rotation around a single axis.
Also name the functional class
Pivot (or trochoid)
Functional: Diarthroses