organisation of the human body Flashcards
meaning of anatomy
science of science
meaning of physiology
science of body functions that is determined by the anatomy
name a few of the levels of organisation
chemical
cellular
tissue
organ
system
organismal
what does organismal mean
combines all systems of the body
name the 4 main groups of tissue
epithelial
connective
muscular
nervous
what tissue out of the 4 main groups is where the blood is found?
connective tissue
describe systems in the body
group of organs with a common function
organ will be rare if you find one tissue type
cardiovascular system is not just one organ
how does the cardiovascular system work
carries nutrients to and waste away from cells
regulates acidity, temperature and water content of body fluids
do neuron cells multiply?
all cells multiply but neuron cells don’t multiply very well
can lead to loss in function of the body if damaged
what does neuron cells do?
neuron sends pulses to parts of the body for actions to happen
metabolism
sum of all chemical reactions in the body
repsonsiveness
how the body reacts to things that happen
detection and response to changes in the internal or external environment
homeostasis
negative feedback system
reverses a change in the controlled variable
takes it back to normal
maintains blood suagr levels, blood pressure
homeostasis
dynamic process
maintained by feedback systems
must be measured and then changed towards some goal
what happens if there is big loss in blood
means the heart has to work harder
