TEAS 7 Cheat Sheet (All 4 Sections)
The facts, rules and formulas that show up most on the ATI TEAS 7 — on one printable page. Notes are not allowed on test day, so print this, study it, and then test yourself with the free practice questions.
TEAS Science
44 scored questions · 60 minutes · about 40% is Anatomy & Physiology
Body systems at a glance
- Cardiovascular
- Heart pumps blood; arteries carry blood away from the heart, veins return it; capillaries exchange gases and nutrients
- Blood flow
- Body → vena cavae → right atrium → tricuspid → right ventricle → pulmonary valve → lungs → pulmonary veins → left atrium → mitral → left ventricle → aortic valve → aorta
- Respiratory
- Nose → pharynx → larynx → trachea → bronchi → bronchioles → alveoli (gas exchange by diffusion); diaphragm drives inhalation
- Nervous
- CNS = brain + spinal cord; PNS = everything else. Sympathetic = fight or flight (↑HR, ↑BP); parasympathetic = rest and digest
- Digestive
- Mouth (amylase) → esophagus → stomach (pepsin, HCl) → small intestine (most absorption) → large intestine (water). Liver makes bile, gallbladder stores it, pancreas makes enzymes + insulin
- Endocrine
- Pituitary = master gland; thyroid = metabolism; adrenals = cortisol, epinephrine; pancreas = insulin (↓glucose) & glucagon (↑glucose). Most hormones use negative feedback
- Urinary
- Kidney → ureter → bladder → urethra. Nephron filters, reabsorbs, secretes. ADH and aldosterone help the body hold on to water
- Immune
- Innate = skin, inflammation, phagocytes. Adaptive = B cells (antibodies) and T cells. Vaccines create active immunity
- Skeletal & muscular
- 206 bones; red marrow makes blood cells. Tendons: muscle→bone; ligaments: bone→bone. Muscle types: skeletal (voluntary), smooth, cardiac
- Integumentary
- Epidermis → dermis → hypodermis. Protects, regulates temperature, makes vitamin D
Anatomy directions
- Superior / inferior
- Toward the head / toward the feet
- Anterior / posterior
- Front (ventral) / back (dorsal)
- Medial / lateral
- Toward the midline / away from the midline
- Proximal / distal
- Closer to / farther from where a limb attaches
- Planes
- Sagittal = left/right · Frontal (coronal) = front/back · Transverse = top/bottom
Biology
- Organelles
- Nucleus = DNA · Mitochondria = ATP · Ribosome = proteins · Golgi = packaging · Lysosome = digestion · Rough ER = protein, smooth ER = lipids
- Mitosis vs. meiosis
- Mitosis → 2 identical diploid cells (growth/repair). Meiosis → 4 unique haploid gametes
- DNA → protein
- Transcription (DNA → mRNA, nucleus) → translation (mRNA → protein, ribosome). DNA: A–T, C–G. RNA: A–U
- Macromolecules
- Carbs → monosaccharides · Lipids → fatty acids + glycerol · Proteins → amino acids · Nucleic acids → nucleotides
- Genetics
- Aa × Aa → 1 AA : 2 Aa : 1 aa (3:1 dominant phenotype). Homozygous = same alleles, heterozygous = different
Chemistry
- Atom
- Protons (+) and neutrons (0) in nucleus; electrons (−) in shells. Atomic number = protons. Mass number = protons + neutrons
- Isotopes & ions
- Isotope = different neutrons. Ion = different electrons (lose e⁻ → positive, gain e⁻ → negative)
- Bonds
- Ionic = transfer of electrons · Covalent = sharing · Hydrogen bonds = weak attractions (water)
- pH
- 0–6.9 acidic · 7 neutral · 7.1–14 basic. Blood ≈ 7.35–7.45
- Reaction rate ↑
- Higher temperature, higher concentration, more surface area, catalyst (lowers activation energy)
- Solutions
- Hypertonic = cell shrinks · Hypotonic = cell swells · Isotonic = no net change
Scientific reasoning
- Variables
- Independent = what you change · Dependent = what you measure · Controlled = kept the same
- Control group
- Group that does not receive the treatment, used for comparison
- Correlation ≠ causation
- Two things moving together does not prove one causes the other
- Metric prefixes
- kilo 1000 · hecto 100 · deka 10 · base · deci 0.1 · centi 0.01 · milli 0.001 · micro 0.000001
TEAS Math
34 scored questions · 57 minutes · built-in on-screen calculator
Must-know formulas
- Percent
- part = percent × whole · % change = (new − old) ÷ old × 100
- Proportion
- a/b = c/d → a × d = b × c
- Area
- Rectangle l × w · Triangle ½bh · Circle πr²
- Perimeter / circumference
- Rectangle 2l + 2w · Circle 2πr
- Volume
- Rectangular prism l × w × h · Cylinder πr²h
- Pythagorean theorem
- a² + b² = c²
- Mean / median / mode / range
- Average · middle value (sorted) · most frequent · max − min
- Conversions
- 1 in = 2.54 cm · 1 kg = 2.2 lb · 1 L = 1000 mL · 1 tsp = 5 mL · 1 oz = 30 mL · °F = 1.8°C + 32
Full formula list with examples: TEAS Math formula sheet · Practise the on-screen calculator: free TEAS calculator
TEAS Reading
39 scored questions · 55 minutes
Question types and how to answer them
- Main idea / summary
- Pick the answer that covers the whole passage — not one detail
- Inference
- Must be supported by the text; avoid extreme words (always, never)
- Author’s purpose
- Persuade, inform, entertain, or explain (PIE + expository)
- Point of view
- 1st person = I/we · 2nd = you · 3rd = he/she/they. Look at word choice for tone
- Fact vs. opinion
- Facts can be checked; opinions use judgment words (best, should, beautiful)
- Words in context
- Plug each choice back into the sentence
- Directions / sequence
- Track every step in order; watch for “if”, “unless”, “before”
- Charts & graphs
- Read the title, axes, units and legend before the numbers
TEAS English & Language Usage
33 scored questions · 37 minutes
Punctuation
- Comma
- Before a coordinating conjunction joining two sentences (FANBOYS: for, and, nor, but, or, yet, so), after introductory phrases, in lists
- Semicolon
- Joins two complete sentences without a conjunction
- Colon
- After a complete sentence to introduce a list or explanation
- Apostrophe
- Possession (the nurse’s chart, the nurses’ station) and contractions. its = possessive, it’s = it is
Grammar & sentence structure
- Subject–verb agreement
- Singular subject → singular verb, even with phrases in between (“The box of gloves is…”)
- Pronouns
- Match the antecedent in number; who = subject, whom = object
- Modifiers
- Place them next to what they describe to avoid dangling modifiers
- Sentence types
- Simple (1 independent clause) · Compound (2 independent) · Complex (1 independent + 1 dependent) · Compound-complex
- Errors
- Fragment = missing subject or verb · Run-on / comma splice = two sentences joined incorrectly
Word parts (great for medical terms)
- Prefixes
- hypo- below · hyper- above · brady- slow · tachy- fast · pre- before · post- after · anti- against
- Suffixes
- -itis inflammation · -ectomy removal · -ology study of · -algia pain · -emia blood condition
- Roots
- cardi heart · derm skin · gastr stomach · hem blood · neur nerve · oste bone · pulmo lung
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