test uno
Terms
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what is the differance of systematic and regional anatomy?
anatomy studies the bodily structure
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systematic studies the body by organ systems
regional studies the bodies by areas
true "to cut apart"
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levels of organization
costco
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chemical,(atoms & molecules) cellular (nucleus &mito), tissue(groups of simmilar cells), organ(2 or more tissues with same function), organ system and organism
- there are 11 organ systems
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integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, repiratory, digestive, urinary and reproductive
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classify the four primary tissue types
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epithelial connective nervous and muscular
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the chart of life
OMRGDR
- organization metabolism responsiveness growth development and reproduction
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homeostasis requires three things
rcce
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receptor-todetect changes
control center-to determine set point
effector to respond tp change
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negative feedback
positive feedback
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common, 2 maintain H
Rare, change is increased (BAD) example is bleeding and cloting
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Vertical divides the body into
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anterior and posterior
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the primary cavity
and what does it contain
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Dorsal it contains the brain and the spinal cord
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matter has weight and occupies space
what else is matter composed of
- composed of elements which is the smallest unit of matter
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no 2 elements have the same atomic number
the atomic number of hydrogen is what
oxygen has 8 protons so the atomic # is
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true
one
8
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what are the three types of sub atomic particles?
what is inside the central neucleus?
which one is in the orbital shell?
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proton neutron and electron
protons and neutrons
electrons are in the orbital shell
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how many electrons are full in the inner orbital?
the second orbital can hold up to how many?
the third orbital can hold up to how many?
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2
8
18
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the outermost orbital with any electrons
- valence
- which is never lost or gained, proton or electron?
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protons are never lost or gained
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two or more elements in a fixed ration is a
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compound ex is h20
- three types of chemical bonds
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ionic: transfer electrons between atoms
covalent: electrons shared between atoms
hydrogen :form weak attractions and R easily broke by temp or ph
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IONIC BOND
atoms that gain are what charge
atoms that loss are what charge
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gain are negative charge (anion)
LOSE are positive charge (cation)
these bonds are common in inorganic molecules
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Covalent bond common in what kind of molecule
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ORGANIC MOLECULE protein
represent stored energy
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dehydration synthesis is an exaple of a chemical reaction
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water released as bond formed-this takes energy
example of glycogen from glucose
- example of synthesis
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makes a larger molecule
a+b=ab
- example of decomposition
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breaks bonds and releases energy
ab=a+b
this is the reverse of dehydration synthesis
- EXCHANGE
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AB+C=AC+B
bonds are broken and formed
involves synthesis and decomposition
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4 Organic molecules that contain carbon
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carbohydrates (ch20)n quick source of energy
lipids moving things in & out of cell long term energy
proteins composed of amino acids and carries stuff
nucleic acids (animal DNA)
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proteins are composed of amino acids joined by what type of bond
how many amino acids
functions
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peptide bond
23
structure, carries, enzymes, hormones, antibodies buffers
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human skull has 8 cranial bones joints known as sutures and foramena serve as passageways for blood vessels and nerves
and 14 facial bones that form the underline structure
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sphenoid bone makes up the anterior base of the cranium.