Anatomy Lecture 1 Flashcards
Principle mass of a bone: with long bones, the shaft; with vertebrae, the anterior, weight-bearing portions between interventricular discs
Body
small, round, articular head (humerus)
capitulum
rounded, knuckle-like articular area, often occurring in pairs
condyle
ridge of bone
crest
eminence superior or adjacent to a condyle
epicondyle
smooth flat area, usually covered w cartilage where a bone articulates w another bone
facet
usually serve protective functions (cranial bones)
flat bones
passage through a bone
foramen
hollow or depressed area
fossa
elongated depresson or furrow
groove
large, round articular end
head
Varying shapes like bones of face
irregular bones
Linear elevation, sometimes called a ridge
line
Tubular bone
long bones
rounded process
malleolus
relatively narrow portion proximal to the head
neck
indentation at the edge of a bone
notch
extension or projection serving a particular purpose, having a characteristic shape, or extending in a particular direction
process
bulge or projection of bone
protuberance
bones that develop in certain tendons and are found where tendons cross the ends of long bones in the limbs; protect tendons from excessive wear and often change the angle of the tendons as they pass to their attachments
seasmoid bones
the diaphysis or body of a long bone
shaft
Cubiodial and are found only in the tarsus
short bones
thorn-like process
spine
large blunt elevation
trochanter
spool-like articular process or process that acts as a pulley
trochlea
small raised eminence
tubercle
large rounded elevation
tuberosity
divides body into left and right sections passing longitudinally through the midlines of the head, neck, and trunk
median plane
vertical planes passing through the body parallel to the median plane
sagittal plane
vertical planes passing through the body at right angles to median plane, dividing the body into the anterior and posterior parts
front (coronal) plane
horizontal planes passing through the body at right angles to the median and frontal plane dividing the body into superior and inferior parts
transverse plane
structure that is nearer the vertex (topmost part of cranium)
superior
structure nearer to the sole of the foot
inferior
towards the feet or tail region
caudal
back surface of the body
posterior
front surface of body
anterior
front part of brain
rostral
structure nearer to the median plane of body
medial
structure further away from median plane of body
lateral
superior aspect of any part that protrudes anteriorly from the body
dorsum
nearer to the feet and median plane
inferomedial
nearer to the head and farther away from the median plane
superolateral
outside of or further away from the center of an organ or cavity
external
closer to the center of an organ or cavity
internal
closer to the body when referring to an attachment or limb
proximal
further away from the main body when referring to limbs or attachments
distal
paired structures having left and right membranes
bilateral
paired structures occurring on one side only
unilateral
occurring on the opposite side of the body relative to another
contralateral
occurring on the same side of the body as another structure
ipsilateral
bending or decreasing the angle between the bones or parts of the body
flexion
straightening or increasing the angle between the bones or other body parts
extension
flexion at the ankle joint
dorsiflexion
bends the foot and toes toward the ground
plantarflexion
extension of a limb or part beyond the normal limit
hyperextension
means moving away from away from the median plane (except for digits)
abduction
means moving toward the median plane (except for digits)
adduction
circular movement that involves sequential flexion, abduction, extension, and adduction in such a way that the distal end of the part moved in a circle
circumduction
involves turning or revolving a part of the body around its longitudinal axis
rotation
rotates the radius medially so that the palm of the hand faces posteriorly
pronation
rotating radius laterally and up tossing the ulna
supanation
moves sole of the foot away from the median plane turning the sole laterally
eversion
moves the sole of foot toward median plane turning sole medially
inversion
movement by which the pad of the 1st digit is brought to another digit pad
opposition
movement of 1st digit from opposition back to its anatomical position
reposition
movement forward (anteriorly) as in mandible
protrusion
movement posteriorly or backwards as in mandible
retrusion
raises or moves parts superiorly
elevation
lowers or moves parts inferiorly
depression
united by a joint capsule spanning and enclosing a joint or articulate cavity (most common)
synovial joints
united by fibrous tissue and movement depends on length of fibers
fibrous joint
united by hyaline cartilage or fibrocartilage
cartilaginous joint
permit gliding or sliding movements in the plane of articular surfaces
plane joints
permit flexion and extension only; movements occur in one plane around a single axis that runs transversely (uniaxial)
hinge joints
permit abduction and adduction as well as flexion and extension; biaxial movements
saddle joints
permit flexion and extension as well as abduction and adduction and circumduction
condyloid joints
allow movements in multiple axes and planes; flexion/extension, abduction/adduction, medial/lateral rotation, and circumduction; multiaxial
ball and socket joints
permit rotation around a central axis; uniaxial
pivot joints
considers the organization of body as major parts/segments and focuses only on a specific part, area, or region; examining arrangement and relationships of the various systemic structures within it
regional anatomy
study of the body’s organ systems that work together to carry out complex functions
systemic anatomy
emphasizes aspects of bodily structure and function; incorporates regional and systemic and stresses clinical application; often involves inverting or reverting the thought process
clinical anatomy
outer connective tissue layer or sheath of blood vessels
tunica adventitia
middle layer of blood vessels consisting primarily of smooth muscle
tunica media
inner lining of blood vessels consisting of extremely flattened epithelial cells (endothelium) supported by delicate connective tissue
tunica intima