Exam 1 Flashcards
Anatomy is
the study of body structures
Gross anatomy
large structures
macroanatomy
visible to the naked eye
microanatomy
requires microscope to observe
Cytology
study of cells
Histology
study of tissues
Regional anatomy
within a region, like thorax
Systemic anatomy
all structures making up a body system- like skeleton
Homeostasis
maintaining steady state
Structural organization of the body
chemical
cellular
tissue
organ
organ system
organism
Metabolism
changes food into energy
anabolism
builds
catabolism
breaks down
Differentiation
cells become specialized/functional
Growth
increase in size
hyperplasia
proliferation, increase cell number
hypertrophy
increase in cell size
deposition
of extracellular material, minerals in bone, connective tissue
Requirements for life
Oxygen
Water
Energy
Micronutrients
Narrow range of temperature
narrow range of atmospheric pressure
Negative feed back loop
reverses change
stimulus- sensor- control- effector
Positive feed back loop
snowball effect
example- birth
Homeohesis
the orchestrated or coordinated control in metabolism of body tissues necessary to support a physiological state
Sagittal plane
divides left vs right sides
Frontal plane
divides the anterior (front) from posterior (rear)
Transverse plane
divides upper vs lower
pleural cavity
surrounds the lungs
pericardium
surrounds the heart
peritoneum
surrounds organs in the abdominal cavity
Serous membranes
serosa
thin membranes that cover organs
Isotopes
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties
Types of isotopes
radioactive
stable
radioactive isotopes
decay causing radiation=detectable
Stable Isotopes
don’t decay but can be detected by mass spectrometry
used as markers
3 types of reactions
synthesis
decomposition
exchange
Synthesis
make something from ingredients
decomposition
destroy something
exchange
combined decomposition and synthesis