Chaper 1 Flashcards
anterior(ventral)
front side of the body
posterior(dorsal)
back side of the body
proximal
closest to the body trunk
distal
farther from the body trunk
anatomy
structure of the body
physiology
study of the function of the body parts
gross/macroscopic anatomy
large structures that you can see
microscopic anatomy
structures that cannot be seen with the naked eye
cytology
study of the cells
histology
study of the tissue
developmental anatomy
the anatomical and physiological development throughout life
embryology
the developments before birth
organization of the human body from smallest to biggest level
chemical level, cellular level, tissue level, organ level, organ system level, organism level
chemical level
atoms , molecules, organelles
cellular level
single cell
tissue level
groups of similar cells
organ level
contains two or more types of tissues
organ system level
organs that work closely together
organismal level
all organ systems combined to make the whole organism
digestion
breaking food down
metabolism
all chemical traditions in the body
maintaining boundaries
separate internal from external environments
movement
moving things in and out of the body such nutrients or waste
responsiveness
body responding to the environment
excretion
elimination of waste
reproduction
having to reproduce by your own
growth
cells get bigger as you develop
how many organ systems are there in the body?
11
endocrine system
controls and secretes hormones
cardiovascular system
the heart and takes things around the body
immune/lymphatic system
vacc
survivals needs
nutrients oxygen water normal body temperature appropriate atmospheric pressure
nutrients
chemicals for energy and cell building
oxygen
release of energy from foods
water
most abundant chemical in body also provided the necessary watery environment for chemical reactions
normal body temperature
body temp changes the rate of chemical reactions are affected
appropriate atmospheric pressure
needed for adequate breathing and gas exchange in the lungs
homostestis
maintenance of relatively stable internal conditions
pathology
disease
receptor
essentially a sensors that reacts to stimuli and sends signals to the body
control center
receives input from record and determined the appropriate responses
effector
provided the means to respond from the revived output from the control center
negative feedback
reduces stimuli
positive feedback
enhances stimuli
how does homeostatic happen
1 stimulus 2 receptor 3 input 4 output 5 response creates balance in the body
superior(cranial)
towards the head
inferior(caudal)
away from the head
naval
bellybutton
medial
towards the middle of the body in a straight line down
lateral
away from the midline
intermediate
anything between lateral and medial
superficial (external)
towards the body surface
deep(internal)
deep cut , away from the body surface
what are the major divisions of the body?
Axial, Appendicular
Axial
head, neck, trunk
appendicular
limbs (legs and arms)
regional terms
specific areas in the body divisions
sagittal plane
essentially cut a person from the front
See the left and right
Frontal (coronal)plane
cut the person from back to front
midsagittal(median) plane
cut a person perfectly in the middle
traverse(horizontal) plane
Divided the person from top and bottom
cranial cavity
encases the brain
vertebral cavity
encases spinal cord
dorsal body cavity
contains the cranial cavity and vertebral cavity
thoracic cavity
two pleural cavities , each cavity surrounds one lung