Exam 1: Ch1,2 &atlas a Flashcards
5 Types of chemical gradients
- Concentration
- Electrical
- Thermal
- Electrochemical
- Pressure
Parts of scientific terms: (Study medical terminology cards)
Roots, Prefix, conjoining vowels, suffix. Breaking down a word to understand it’s meaning
Physiological variations
Weight, age, sex, diet
Axial region includes
Cephalic
Thoracic
Abdominopelvic
Appendicular region includes:
Lower and upper limbs
Trunk divisions
Thoracic cavity has plural and pericardial cavities; abdominal and pelvic
A segment is:
A region between one joint and the next.
6 Most abundant elements in the body:
98.5%: Oxygen, hydrogen, carbon, nitrogen, calcium, phosphorus
6 Lesser elements are:
.8%: Sulfur, potassium, sodium, chlorine, magnesium, iron 
Atomic mass
Protons plus neutrons
Atomic weight
The average weight of all the isotopes of an element 
Radiation and Ionizing radiation
Radioisotopes: Unstable isotopes of an element That want to decay. Shoots off particles and energy.
Ionizing radiation: high energy radiation, shoots off electrons. Very damaging: alpha beta gamma
Ions
Charged particles: cation gives away an electron, anion gains an electron
Electrolytes
Substances that ionizes in water, can conduct electricity, and a deficit is detrimental (Can cause muscle cramps, heart issues, etc.)
Common electrolytes are:
Potassium, calcium, magnesium, sodium, chloride
Free radicals
Unstable highly reactive particles with an odd number of electrons.
They are short-lived, and quickly combine with other molecules and can cause damage
Antioxidants
Neutralize free radicals; can pick up an electron or help pair one with another molecule to stabilize the free radical
Properties of carbohydrates
-Quick source of energy (break off energy from glycogen through hydrolysis)
-Converted to glucose (then ATP via oxidation)
-Can be combined with other macromolecules, but each have moiety
-4 calories per gram
Glycogen is what and does what? Blood sugar?
Polysaccharide: Long branched chains of glucose to store energy. Created via secretions in the liver after a meal. You can break off a branch to get energy. It helps keep blood glucose levels stable between meals.
Calories per gram
Carbohydrate: 4 cal per gram
Protein: 4 cal per gram
Fats: 9 cal per gram
Structure of amino acids
-Carbon with a hydrogen, a carboxyl group and an amino group, and an R group that is different for each amino acid
-Usually amphipathic
Polymer of protein
Peptides: small chain of linked amino acids