TEAS 7 Anatomy & Physiology: The Ultimate High-Yield Study Guide
Why Anatomy and Physiology Dominates the TEAS 7 Science Section
If you only have time to master one part of the TEAS 7 science section, make it anatomy and physiology. The ATI TEAS 7 science section contains 47 questions in 60 minutes, and human anatomy and physiology accounts for roughly 18 of those questions, making it the single largest content area in the section. The remaining science questions cover biology, chemistry, and scientific reasoning, but A&P is where most applicants either secure a strong score or fall behind.
The reason A&P carries so much weight is simple. Nursing programs want proof that you can handle the foundational science that every nursing course builds on. When you later study heart failure, kidney injury, or diabetes, you will be applying the same structures and functions the TEAS tests now. Admissions committees use your science score as a predictor of how well you will handle that coursework.
Many applicants underestimate this section because they took an A&P course years ago or assume the questions will be simple definitions. In reality, the TEAS 7 often asks you to apply knowledge, such as tracing the path of blood through the heart or predicting what happens when a hormone is overproduced. If you are wondering how this fits into the bigger picture of exam difficulty, our breakdown of whether the TEAS 7 exam is hard explains which sections trip students up most. Applicants still deciding between entrance exams may also want to compare formats in our guide on TEAS 7 vs HESI A2, since the two tests weight anatomy content differently.
Body Organization, Terminology, and Tissues
Before diving into individual systems, lock down the language of anatomy. The TEAS expects you to know directional terms instantly. Superior means toward the head, inferior means toward the feet, anterior or ventral means toward the front, and posterior or dorsal means toward the back. “Medial” refers to closer to the midline, while “lateral” means farther from it. "Proximal" and “distal” describe positions on a limb relative to the point of attachment, so the elbow is proximal to the wrist. Superficial and deep describe the distance from the body surface.
You also need to recognize the body planes. The sagittal plane divides the body into left and right portions, the frontal or coronal plane divides it into front and back, and the transverse plane divides it into upper and lower sections. Questions frequently describe an imaging slice and ask which plane it represents.
Body cavities are another reliable test topic. The dorsal cavity contains the cranial cavity, which houses the brain, and the vertebral canal, which houses the spinal cord. The ventral cavity contains the thoracic cavity, separated by the diaphragm from the abdominopelvic cavity. Remember that the heart sits in the mediastinum within the thoracic cavity.
Finally, know the four primary tissue types: epithelial tissue covers and lines surfaces, connective tissue supports and binds structures, muscle tissue produces movement, and nervous tissue transmits signals. This vocabulary will follow you directly into nursing school, where you will use it during skills like a head-to-toe assessment to document findings accurately.
Cardiovascular and Respiratory Systems
The cardiovascular system is one of the most heavily tested areas, and the path of blood through the heart is a near-guaranteed question. Deoxygenated blood returns from the body through the superior and inferior vena cava into the right atrium. It passes through the tricuspid valve into the right ventricle, then through the pulmonary valve into the pulmonary arteries, which carry it to the lungs. Oxygenated blood returns through the pulmonary veins to the left atrium, moves through the mitral (bicuspid) valve into the left ventricle, and exits through the aortic valve into the aorta.
A common trap involves the pulmonary vessels. Arteries carry blood away from the heart, and veins carry blood toward it, regardless of oxygen content. That means the pulmonary arteries carry deoxygenated blood and the pulmonary veins carry oxygenated blood, which is the opposite of systemic circulation. Also remember that the left ventricle has the thickest wall because it pumps blood to the entire body, and that the sinoatrial node is the heart's natural pacemaker.
The respiratory system pairs naturally with circulation. Air travels through the nasal cavity, pharynx, larynx, trachea, bronchi, and bronchioles before reaching the alveoli, where gas exchange occurs by diffusion across thin capillary walls. Oxygen moves from the alveoli into the blood, while carbon dioxide moves from the blood into the alveoli to be exhaled. The diaphragm contracts and flattens during inspiration, increasing thoracic volume and lowering pressure so air flows in. Expect questions linking these two systems, such as how carbon dioxide levels influence breathing rate through chemoreceptors in the brainstem.
Nervous, Endocrine, and Musculoskeletal Systems
The nervous system is divided into the central nervous system, made up of the brain and spinal cord, and the peripheral nervous system, which includes all nerves outside the central nervous system. The autonomic branch splits into the sympathetic system, responsible for the fight-or-flight response with increased heart rate and dilated pupils, and the parasympathetic system, responsible for rest-and-digest functions. Know the major brain regions as well: the cerebrum handles higher thinking and voluntary movement, the cerebellum coordinates balance, and the brainstem controls vital functions like breathing and heart rate.
The endocrine system works alongside the nervous system but communicates through hormones carried in the blood. The TEAS loves feedback loop questions, especially negative feedback, where rising levels of a hormone signal the body to reduce its production. Insulin and glucagon from the pancreas, thyroid hormones, cortisol from the adrenal cortex, and antidiuretic hormone from the posterior pituitary are high-yield. For a focused review, our article on TEAS 7 science hormones you must know walks through each gland and its effects.
For the musculoskeletal system, know that the adult skeleton has 206 bones, divided into the axial skeleton (skull, vertebral column, rib cage) and the appendicular skeleton (limbs and girdles). Understand the three muscle types: skeletal muscle is voluntary and striated, cardiac muscle is involuntary and striated, and smooth muscle is involuntary and nonstriated. Muscle contraction depends on calcium and the sliding of actin and myosin filaments, a concept that reappears constantly once you begin studying electrolytes in nursing school.
Digestive, Urinary, Immune, and Remaining Systems
The digestive system questions usually focus on where specific processes occur. Mechanical and chemical digestion begin in the mouth, where salivary amylase starts breaking down carbohydrates. The stomach uses hydrochloric acid and pepsin to begin protein digestion. Most nutrient absorption happens in the small intestine, particularly the jejunum and ileum, thanks to villi and microvilli that increase surface area. The large intestine primarily absorbs water and electrolytes. Accessory organs matter too: the liver produces bile, the gallbladder stores it, and the pancreas releases digestive enzymes and bicarbonate.
The urinary system centers on the nephron, the functional unit of the kidney. Filtration occurs in the glomerulus, and the proximal convoluted tubule reabsorbs most water, glucose, and sodium. The loop of Henle concentrates urine, and antidiuretic hormone acts on the distal tubule and collecting duct to increase water reabsorption. Understanding these mechanisms gives you a head start on fluid and electrolyte topics like those covered in our hyponatremia vs hypernatremia review.
For the immune system, distinguish innate immunity, which includes skin and inflammation, from adaptive immunity. B cells produce antibodies for humoral immunity, while T cells drive cell-mediated immunity. Also review the integumentary system, especially the epidermis, dermis, and hypodermis layers, and the reproductive system, including where fertilization typically occurs (the fallopian tube) and the roles of estrogen, progesterone, and testosterone. These smaller systems produce fewer questions individually, but together they can account for several points you cannot afford to lose.
How to Study A&P Efficiently Before Test Day
The biggest mistake applicants make is rereading textbook chapters passively. A&P is too large for that approach, and recognition is not the same as recall. Instead, use active retrieval. Cover a diagram of the heart and draw the blood flow path from memory, then check your work. Explain the nephron out loud as if teaching a classmate. These methods force your brain to rebuild information, which strengthens long-term memory. Many of the techniques in our guide to smart study methods for retaining information apply just as well to the TEAS as they do to the NCLEX.
Organize your review by system and prioritize the highest-yield areas first: cardiovascular, respiratory, nervous, endocrine, and urinary. Once those feel solid, move to digestive, immune, and musculoskeletal content. Spread your sessions across several weeks rather than cramming, and revisit earlier systems every few days so they stay fresh. Flashcards work especially well for terminology and hormone functions, and the NCLEKS flashcards make spaced repetition easy.
Practice questions should be part of your routine from the very first week, not saved for the end. Questions reveal whether you can apply knowledge under time pressure, and the TEAS gives you a little over a minute per science question. If you are unsure how to fit this into a busy schedule, our realistic daily study plan offers practical guidance on balancing review time with work and family.
Why Strong A&P Skills Pay Off Long After the TEAS
Earning a high TEAS science score does more than check a box on your application. Nursing programs often rank applicants by composite score, and the science section can separate you from hundreds of other candidates with similar GPAs. Understanding how competitive nursing school admissions are helps put into perspective why a few extra A&P points can make a real difference in whether you receive an acceptance letter.
The benefits continue after admission. Pathophysiology, pharmacology, and medical-surgical nursing all assume you already understand normal body function. When a professor explains why beta blockers lower heart rate or why kidney failure causes fluid overload, students with a strong A&P foundation follow along easily, while others scramble to relearn the basics. That is a big part of what makes the early semesters feel manageable, as described in our overview of what to expect in your first semester of nursing school.
Think of your TEAS preparation as the first step in building clinical judgment. Every structure you memorize now becomes a tool for recognizing abnormal findings later. Study with the goal of truly understanding how systems connect, not just passing a single test, and you will find that the effort pays off in every course and eventually on the NCLEX itself. When you are ready to test your knowledge, explore the practice exams available on the NCLEKS exams page to measure your progress.
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