Anatomy Chapter 1 and 2 Flashcards
What is RNA?
Carries out protein synthesis. Single stranded. Ribose
What is DNA?
Houses genetic material, the blueprint. Double stranded. Dioxyribose
What is ATP?
Adenosine Triphosphate. Created from combining or breaking down molecules.
What are enzymes?
Biological catalyst. Increases the body’s chemical reactions a million fold. (-ase suffix)
What are Polar molecules?
Molecules that unevenly share electrons and have a charge.
What are non-polar molecules?
Molecules that share electron evenly and have no charge.
What is a molecule?
One or more atom of the same element.
What is a compound?
Atoms from at least two different elements.
What is a cation ion?
Positive charge. Due to less electrons
What is an anion ion?
Negative charge due to more electrons
Inorganic
Simple and small, includes water, salt, acids and bases
Organic
Large covalent molecules, contain carbon. Include proteins, carbs and lipids.
Dehydration Synthesis
Water is removed from molecule to combine monomers
Hydrolysis
Water is added to molecules to combine monomers
Atomic Number
Number of protons in an element, will not change
Atomic Weight
Approximately equal to the element’s most abundant isotope
Mass Number
Add the protons and electron’s of an element
Ion
Atom lost or gained an electron
Proton
Positively charged, close to the nucleus of an atom
Neutron
Neutral, Uncharged
Electron
Negatively Charged, aound the outside of the atom
Proteins
Account for half of the body’s organic mass. Built from building blocks called amino acids.
Saturated Fats
Single covalent bonds. Straight chains. Exist as a solid at room temperature
Unsaturated Fats
One or more covalent bonds. Kink in the chain. Exist in a liquid form at room temperatures. “Oils”
Ionic Bond
form when electrons are completely transferred from one atom to another. Allows the atom to achieve stability in the valence shell. Positive and negative charges hold the atoms together.
Covalent Bonds
become stable through shared electrons. Single covalent share one pair of electrons. Double share two pairs of electrons. Polar (not equally shared) and non polar covalent bonds
Hydrogen Bonds
are are extremely weak bonds. Important for forming intramolecular bonds such as protein structures. Responsible for water tension.
PH
-measure the number of protons in a solution. Measures concentration of hydrogen ions in body fluids. Scale is 0 (acidic) to 14(basic).
Electrolytes
Ions that can conduct electrical currents. (Salt) Acids are also elctrolytes.
Synthesis Reaction
Two or more elements to combine to create a different compound or element. (H2O)
Decomposition Reaction
Energy is released when breaking down molecules. (Digestion)
Exchange Reactions
Simultaneous Synthesis and Decomposition
Matter
Anything that has mass or takes up space
Oxygen
O
Carbon
C
Hydrogen
H
Nitrogen
N
Calcium
Ca
Phosphorus
P
Potassium
K
Sulfur
S
Sodium
Na
Chlorine
Cl
Magnesium
Mg
Survival needs?
Nutrients, Oxygen, Water, Body Temp, Atmospheric Pressure
Frontal Plane
Split front to back
Transverse Plane
Split top to bottom
Sagittal Plane
Split in the middle
Distal
Farther away from limb’s origin
Proximal
Closer to limb’s origin
Medial
Closer to the center of the body
Lateral
Closer to the outside of the body
Superior
Above
Inferior
Below
Deep
Closer to the inside of the body
Superficial
Closer to the skin’s surface
Anterior
Front
Posterior
Back
Anatomical Position
Standing erect, feet shoulder width, arms out, palms facing forward
Water body percentage
60-80%
Homeostasis
the process which the body uses to stay within it’s survivable parameters
Three parts of homeostasis
Recepter, Control, Effect
Receptor
Recognizes the stimuli and sends the report to the control center
Control Center
Analyzes the data and determines the response
Effect
Responds to the stimulus “turns down the thermostat”
Negative Effect Homeostasis
Responds by mitigating or turning down the thermostat
Positive effect Homeostasis
Very rare, occurs during pregnancy. Increases the stimuli’s reaction
Respiratory System Actions
Supplies oxygen and removes CO2
Digestive System Actions
Breaks down food and processes nutrients, gets rid of waste product
Urinary System Actions
Eliminates waste, maintains blood pressure by pulling in or releasing water in the blood stream, maintains acid base
Lymphatic System Actions
Filters bad stuff from your body, helps maintain blood volume
Nervous System Actions
Fast acting control system, sends info out
Endocrine System Actions
Slow acting control system, reacts by releasing hormones into the blood stream
Cardiovascular System Actions
Transports oxygen and CO2
Muscular System Actions
Provides thermogenic properties, “moves” the body
Skeletal System Actions
Provides structure, protects organs, site for blood cell formation
Integument System Actions
Provides protection and a barrier against pathogens, excrements waste, helps regulate body temperature, produces vitamin D
Reproductive
Procreation of the species