Intro to Human Body Flashcards
Anatomical Position
Reference body position characterized by the body erect and facing forward, feet parallel, arms extended at the sides, and palms facing forward.
Superficial
regional term indicating closer to the surface
Deep
regional term indicating further form the surface of the body
Sagittal Plane
plane of movement that divides the body vertically into right and left halves
Frontal plane
plane of movement that divides the body vertically into anterior and posterior halves
Transverse Plane
plane of movement that divides the body horizontally into superior and inferior halves
Axis
part of a lever system that the lever itself turns around. also called fulcrum
Frontal Axis
imaginary line that intersects the sagittal plane at a right angle around which flexion and extension occur.
Sagittal Axis
imaginary line that intersects the frontal plane at a right angle around which abduction and adduction occurs
Longitudinal Axis
imaginary line that intersects the transverse plane at a right angle around which rotation occurs
Flexion
joint movement occurring on sagittal around a frontal axis that results in a decrease in joint angle
Extension
joint movement occurring on the sagittal plane around a frontal axis that results in an increase in joint angle
Abduction
joint movement occurring on the frontal plane around a sagittal axis that results in movement away from the midline
Adduction
joint movement occurring on the frontal plane around a sagittal axis that results in movement towards the midline
right rotation
joint movement of the spine on the transverse plane around a longitudinal axis that turns the spine to the right
left rotation
joint movement of the spine on the transverse plane around a longitudinal axis that turns the spine left
internal rotation (medial rotation)
joint movement of the appendicular skeleton on the transverse plane around a longitudinal axis that turns toward the midline
external rotation (lateral rotation)
joint movement of the appendicular skeleton on the transverse plane around a longitudinal axis that turns away form the midline
medial
regional term indicating toward the midline
lateral
regional term indicating away from the midline
anatomy
the study of an organisms structure
physiology
the study of an organism’s function
kinesiology
the study of human movement
tissue
a group of cells that share a similar structure and function
surface epithelium
tissue that contains sheetlike layers of cells located on the internal or external body surfaces functioning as a barrier or secretor
glandular epithelium
tissue that produces and delivers substances to the external or internal surfaces or the body or directly into the bloodstream
sensory epithelium
tissue containing specialized cells that are able to perceive and conduct specific stimuli
Extracellular matrix
connective tissue component made up of various fibers suspended in ground substance
ground substance
unique fluid component of connective tissue that suspends the extracellular matrix and exists as either watery liquid or firm solid
collagen fibers
long straight strands of proteins that give connective tissue tensile strength and flexibility
reticular fibers
thin proteins found within connective tissue that resist force in multiple directions, helping to hold structures together