intro to anatomy and physiology Flashcards
Types of Anatomy
Macro, Micro, Developmental, Pathology, Radiology, Molecular Bio, Physiology
Macroscopic Anatomy
study of large body structures visible to the naked eye
3 approaches of macro anatomy
regional, systemic, surface
regional approach
all structures in a region studied at once
systemic approach
all structures of a body system are studied together
surface approach
study of internal body structures relative to the skin
Microscopic Anatomy
structures to small to see without a microscope
2 subdivisions of micro anatomy
cytology, histology
Cytology
study of cells
Histology
study of tissues
Developmental Anatomy
study of changes in body parts throughout life
Pathology Anatomy
study of changes in body structures due to disease
Radiology Anatomy
study of body structures via imaging techniques
molecular biology anatomy
study of molecules that make up body structures
Physiology Anatomy
study of the function of body parts
Structural Hierarchy
Chemical, Cell, Tissue, Organ, System, Organisim
Chemical
basic building blocks for all structures, made of non-living components
atom
smallest unit of all things
molecule
chemical composition of atoms
organelle
mini organ
cell
smallest unit of life and all living things
tissue
a group of similar cells working together for a specific function
4 types of tissue
connective, epithelial, muscle, nervous
organ
two or more tissue types working together for a specific function
organisim
combination of all organ systems working together to maintain life
8 functional characteristics of life
boundaries, movement, responsiveness, digestion, metabolism, excretion, reproduction, growth
boundary maintenance
form barriers to keep internal/external environments separate from each other
movement
whole organism moving or movement of substances through the organism
responsiveness
ability to sense and respond to changes in the internal or external environment
digestion
ability to break down food into useable nutrients for absorption
metabolism
all chemical reactions used to sustain life
excretion
removal of waste products from cells or organisms
reproduction
ability to reproduce cells for growth, repair, or a whole new organisim
Growth
ability to increase the size of a cell, body part, or organisim
factors necessary for survival
nutrients, oxygen, water, body temp, atmospheric pressure
nutrients
ingest nutrients to be used for energy, growth, repair
oxygen
inhale from environment
water
most abundant substances in cells/organisims
body temp
maintain a fairly constant temp for functional chemical reactions
atmospheric pressure
pressure the environment exerts on the body, must also be maintained at a fairly constant level for proper function
Homeostasis
the ability to maintain fairly constant internal conditions in response to changing external conditions
3 parts of control mechanism for homeostasis
receptor, control unit, effector
receptor
receives stimuli and sends info to control unit
control unit
receives info from the receptors, analyzes info, decides on plan of action
effector
carries out the response as directed by the control unit
2 types of control mechanisms of homeostasis
negative and positive feedback
negative feedback
most common, effctors are directed to carry out an opposite response to the stimuli
positive feedback
enhances, continues, or heightens the response to the stimulus
anatomical position
standard reference point to locates all structures relative to each other
4 parts of anatomical position
body erect, feet forward, palms forward, thumbs away from body
superior
toward the head, above
inferior
toward the feet, below
anterior/vental
toward the front, in front of
posterior/dorsal
toward the back, in back of
medial
toward the midline of the body
lateral
away from the midline of the body
proximal
towards the origin (trunk) of the body
trunk of the body
head, chest, torso
distal
away from the origin of the body
superficial
towards the surface of the body
deep
away from the body surface, more internal
cephalic
head
frontal
forehead
nasal
nose
orbital
eye
bucal
cheek
mental
chin
oral
mouth
otic
ear
cervical
neck
axillary
armpit
sternal
breastbone
mammary
breast
thoracic
chest
inguinal
groin
doral
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