Unit 1Chapters 1 and 2Samantha SilverVaishnavi RaoJason MaShelief JuarezSara Wong

What Unit 1 CoversLevels of organizationBody systemsBiochemistry (macromolecules)Cross sectional planesAnatomical terms

Levels of Organization

Homeostasis: Body’s maintenance of a stable internal environment

Metabolism : all the chemical reactions occurring in the body.

Organ Systems

FUN Positional Terms !!!!

Superior versus InferiorAnterior versus Posterior

Medial versus LateralIpsilateral versus

ContralateralProximal versus DistalSuperficial versus Deep

Cross Sections

SagittalTransverse Coronal

FUN Abdominal Subdivisions

FUN Anatomical Regions

Common Body Minerals

Carbohydrates

Sugars

Provide both energy and structure

There are 3 types:◦Monosaccharide

1 sugar – quick energy

◦Disaccharide 2 sugars – short storage

◦Polysaccharide many sugars –long term energy storage

Lipids

Water insoluble ◦Triglycerides: insulation and long-term

energy ◦Phospholipids: make up cell membrane◦Steroids: cell signaling

Includes androgens and estrogens.

◦Waxes: prevent water loss, protect

Proteins

Versatile in function Prevalent

Nucleic Acids: DNA and RNA

Made up of nucleotides phosphate molecule, nitrogenous base, and 5-carbon sugar

Several types of nucleic acids, including:◦ DNA: deoxyribonucleic acid, double stranded helix◦ RNA: ribonucleic acid that is used for making proteins,

single stranded, includes uracil instead of thymine◦ ATP: adenosine triphosphate, provides energy for cell