Lecture 1
Medical Pharmacology & Physiology 3202 with Hurley at University of Missouri- Columbia
About this deck
By: Brittany Gordon
Created: 2012-01-20
Size: 43 flashcards
Views: 26
Created: 2012-01-20
Size: 43 flashcards
Views: 26
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Physiology
Structure of the parts if the body
Homeostasis
Tendency to maintain a relatively constant internal environment
Negative feedback control
Change in one variable initiates events tend to return that variable to its initial value
Positive feedback control
Change in 1 variable, initiates events events that cause a further change in that variable
Chemical Structures of the Body
1. Atoms
2. Molecules
3. Ions
4. Free radicals
Atoms
1. Units of matter that forms chemicals substances
2. Made up of protons, neutrons, and electrons
3. Electrically neutral
4. 24 elements are essential for normal body function (99% car carbon, hydrogen, nitrogen, oxygen)
Molecules
Groups of atoms that are joined by chemical bonds
Types od chemical bonds (strongest to weakest)
1. Covalent bonds
2. Ionic bond
3. Hydrogen Bond
Covalent Bonds
1. When 2 atoms share an electron pair
2. equal sharing (non polar bonds)
3. unequal sharing (polar bonds)
Ionic Bond
One atom donates an electron to another (polar)
Hydrogen Bond
Polar area of one molecule binds to an area of opposite polarity on another molecule
Ions
Atoms that has gained or lost an electron
Most frequently encountered ion
Anion: gained an ion (proteins, PO, HCO-)
Cation: (Sodium, hydrogen, Calcium)
Free Radicals
Atom or molecule that has an unpaired electron in its outer shell (unstable, highly reactive)
Solutions
(5) solvent, solute, polar/ionized, non-polar, Amphipathic
Solvent
Stuff in which materials are the solvent (water).......Aqueous
Solute
whats dissolved, solute is dissolved in the solvent
Polar/Ionized
Hydrophilic (soluble)
Non-polar
Hydrophobic......limited solubility
Amphipathic
Polar anad non-polar areas on some molecules
Classes of Organic Molecules
1. Carbohydrates
2. Lipids
3. Cholesterol
Carbohydrates (Ca(H20)a)
Energy or stores
Monosaccharides
Single molecule
Polysaccharides
Polymers ....Animals have Glycogen.....Plants have starches (storage formes of energy)
Lipids
Fats
Cholesterol
1. Component of plasma membrane
2. Precursor of steroid hormones
3. Circulates as (low density and high density)
4. Precursor of all steroid hormones and bile salts and vitamin D...chunk of hydrocarbon
Proteins
By far most structurally diverse and functionally versal of biological compounds. Enzymes, Hormones, ion channels muscle.
4 types of proteins
1. Amino acids
2. Peptide bonds
3. Primary structure
4. Protein conformation
Protein conformation
shape in 3 dimensions
1. Globelar (compact)
2. Fiberous ( stobugated)
3. Mixed
Nucleic acids
Found mostly in nucleus
DNA
Deoxyribonucleic acid...stores aid relays genetic information
RNA
Rinonucleic acid.....messenger RNA (mRNA)....transfer RNA (trNA)
Organ Systems
Nervous, Endocrine, Musculoskeletal, Circulatory, Respiratory, Urinary, Digestive, Skin, Immune, Reproductive
Nervous
Major control system
Endocrine
Control system
Musculoskeletal
Support and movement
Circulatory
Transport of blood, gases nutrients
Respiratory
Gas exchange
Urinary
Maintenance of water and blood composition and excretion of wastes
Digestive
Breakdown of food, absorption of nutrients, removal of wastes
Skin
Protection, temperature control, and water balance
Immune
Fights off foreign invaders
Reproductive
Production of eggs and sperm to perpetuate species
About this deck
By: Brittany Gordon
Created: 2012-01-20
Size: 43 flashcards
Views: 26
Created: 2012-01-20
Size: 43 flashcards
Views: 26
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“Simply amazing. The flash cards are smooth, there are many different types of studying tools, and there is a great search engine. I praise you on the awesomeness.”
Dennis
Dennis