A&P Ch 1 Flashcards
major themes in anatomy & physiology
anatomy
the study of structure
physiology
the study of function
gross anatomy
bodily structure that can be observed without magnification
microscopic anatomy (histology)
the study of microscopic structures of tissues and organs
5 ways to study anatomy
inspection, palpation, auscultation, percussion, dissection
thin organ linings
for absorption and transportation
thick organ linings
protection
inspection
looking, visual observation ex. skin colour
palpation
touching
auscultation
listening
percussion
tapping
dissection
cutting open
structural hierarchy
cell, tissue, organ, organ system
cell
smallest unit of an organism that can carry out basic functions
tissue
mass of similar cells & cell products, forms a discrete region of an organ, performs a specific function
organ
composed of two or more
organ system
a group of organs with a unique collective function (circulation, respiration, digestion)
anatomical variation
variations of organs or parts of organs inside the body
characteristics of life
organization, cellular composition, metabolism, excretion, responsiveness & movement, homeostasis, development, reproduction, evolution
physiological variations
age, height, sex, weight, diet, degree of physical activity, environment
homeostasis
the body’s ability to maintain stable conditions that fluctuate around an ideal set point under changing conditions
negative feedback
when the body senses change and activates mechanisms to reverse the change
stimuli
changes in environment, responsiveness, irritability, excitability
negative feedback loop
stimulus (body temp rises) =>sensor (thermoreceptors) => control center (hypothalamus) => effector (sweat glands, vasodilation, behaviour)
positive feedback loop
self amplifying cycle; a change results in more change in the same direction. a normal way of producing fast changes. ex. oxytocin, blood clotting, protein digestion
eponyms
structures/diseases named after people
acronyms
words made from the first or first few letters of words