IAS22 Flashcards
anatomy meaning
study of human structure to understand human body
levels of anatomy study (optional)
descriptive (form), functional (relation of form & function), clinical -> application in diagnosis and therapy
anatomy vs histology vs cytology
anat: internal morphology, study of human structure
histo: study of tissue
cyto: study of cells & organelles
eponym
person or thing after which sth else is named i.e. common name -> should be avoided
anatomical terminology + e.g. lying down
description always done in standard anatomical position
prone: face down, supine: face up
3 axes, 3 planes
axes: horizontal, saggital (front to back), vertical
planes: transverse, / horizontal, coronal / frontal, saggital (midsaggital & parasaggital)
3 direction pairs
superior & inferior (vertical), lateral & medial (horizontal), anterior & posterior (saggital)
3 movement pairs
abduction (up) & adduction (down) (frontal plane, saggital axis)
flexion & extension (saggital plane, vertical axis)
lateral & medial rotation (transverse plane, horizontal axis)
anatomical space, space within space e.g.
consist of lumen enclosed by boundary
boundaries can be physical (anat. structures) or imaginary
lumen contains anat. structures, fluid or air
spaces within spaces exist: pericardial cavity in mediastinum in thoracic cavity
gap terminology
gap: 2D openings, channels, etc. that connect diff. body parts
canal: 3D structure with at least 2 openings & walls between them
names e.g. opening, hiatus, inlet, outlet, ring, foramen, ostium; also some have specialized & unique name e.g. nostril
body cavity
house brain, spinal cord & internal organs (viscera)
dorsal (cranial & vertebral canal)
ventral (thoracic, abdominal, pelvic)
serous cavity types & structure
3P: peritoneal, pericardial, pleural
2 cont. membranes: parietal (outer) & visceral (peritoneum, pericardium, pleura)
outer layer lined by serosa that secrete thin film of lubricating fluid
serous cavity functions
surrounds structures (abd. organs, heart, lung)
provide slippery, non-adhesive surface to reduce friction in movement of organs (between organs & body wall)
protects organs from external shock
allows organs to change shape & size
serous membrane used for transport of solutes & cells, body defense
mucous cavity
lined by mucosa
mucus secreted by epithelial exocrine glands covers epithelial layer, for protection & lubrication
line body cavities & hollow passageways that open to external env., paranasal air sinus, middle ear, oral & nasal cavities
synovial cavity
soft tissue between articular capsule & joint cavity of synovial joints, surround movable joints
lined by synovial membrane that secretes synovial fluid (clear, viscid, lubricating): reduce friction during movement
involves joint spaces & bursae (provide cushion between bone & tendon / muscle)