ATI TEAS 7 Practice Test 2026 With 200 Question OFFICIAL STUDY RESOURCE: FULL TEST BANK WITH RATIONALES 2026 COMPLETE EXAM SOLUTION - MULTIPLE VERSIONS INCLUDED

Which of the following statements about the body system and its functions is correct? • A. The urinary system filters blood and removes metabolic wastes and foreign invaders • B. The endocrine system maintains the body's homeostasis via hormones and is considered the fast-acting control system of the body • C. The cardiovascular system consists of the heart and blood vessels which produce and transport blood • D. The reproductive system produces gametes for fertilization and produces sex hormones to promote the development of sex organs and gametes Correct Answer: D Rationale: The reproductive system is biologically responsible for producing gametes (sperm and egg cells) and secreting sex hormones. The urinary system does not filter out foreign invaders (that is the immune system), the nervous system is the fast-acting control system (the endocrine is slow-acting), and blood cells are produced by bone marrow, not the cardiovascular system itself. Question 2 Which of the following types of joints is freely movable? • A. Fibrous joint • B. Cartilaginous joint • C. Ball-and-socket joint D. All of the above Correct Answer: C Rationale: Ball-and-socket joints (like the shoulder and hip) are a type of synovial joint, which are functionally classified as diarthroses (freely movable). Fibrous joints are generally immovable, and cartilaginous joints allow slight movement. Question 3 Which of the following structures may be visible if sectioned by a median plane and a transverse plane at the same time? • A. Scapula • B. Sternum • C. Lungs • D. Carpals Correct Answer: B Rationale: The median (midsagittal) plane passes vertically directly through the midline of the body, and a transverse plane passes horizontally. The sternum (breastbone) lies perfectly on the anterior midline of the thorax, meaning a cut intersecting both planes would pass through it. Question 4 What do the majority of genes code for that determine traits? • A. Proteins • B. Carbohydrates • C. Lipids • D. Nucleic acids Correct Answer: A Rationale: Genes are specific sequences of DNA that primarily contain the instructions or codes required to synthesize proteins, which carry out cellular functions and express physical traits. Question 5 The lungs are covered by a double-layer membrane called: • A. Pleura B. Pericardium • C. Endocardium • D. Periosteum Correct Answer: A Rationale: The pleura consists of a visceral and parietal layer that encloses each lung, providing a lubricated surface to reduce friction during breathing. The pericardium surrounds the heart, and the periosteum covers bones. Question 6 Cardiac muscle is found in which layer of the heart? • A. Periosteum • B. Myocardium • C. Pericardium • D. Pleura Correct Answer: B Rationale: The myocardium is the thick, middle layer of the heart wall composed entirely of cardiac muscle tissue responsible for pumping blood. Question 7 Which of the following structures is found exclusively in females? • A. Ureter • B. Fallopian tube • C. Cowper's gland • D. Parathyroid gland Correct Answer: B Rationale: Fallopian tubes (oviducts) are structures unique to the female reproductive tract that transport ovulated eggs from the ovaries to the uterus. Cowper's glands are found in males, while ureters and parathyroid glands are shared by both sexes. Question 8 Which of the following values is appropriate for the length of an adult human humerus bone? A. 30g • B. 30m • C. 30cm • D. 30mm Correct Answer: C Rationale: The humerus is the long bone of the upper arm. Grams (g) measure mass, meters (m) are too large, and millimeters (mm) are too small, leaving 30 centimeters (cm) as the anatomically realistic length. Question 9 A deficiency in this element may impair hemoglobin synthesis and lead to anemia: • A. Na (Sodium) • B. K (Potassium) • C. Mg (Magnesium) • D. Fe (Iron) Correct Answer: D Rationale: Iron (Fe) forms the core of the heme group within hemoglobin molecules, which allows red blood cells to bind and transport oxygen. A lack of iron directly leads to irondeficiency anemia. Question 10 What is the protective pigment that shields the nuclei of skin cells from UV radiation? • A. Melatonin • B. Melanin • C. Keratinocyte • D. Adipocyte Correct Answer: B Rationale: Melanin is a dark pigment produced by melanocytes that clusters over the nuclei of keratinocytes to absorb harmful ultraviolet (UV) rays and prevent DNA damage. Melatonin is a sleep-regulating hormone. Question 11 What happens to $O_2$ and $CO_2$ levels during hyperventilation? • A. $O_2$ and $CO_2$ levels increase • B. $O_2$ and $CO_2$ levels decrease • C. $O_2$ level increases and $CO_2$ level decreases • D. $O_2$ level decreases and $CO_2$ level increases Correct Answer: C Rationale: Hyperventilation involves rapid or deep breathing that expels carbon dioxide ($CO_2$) out of the lungs faster than the body produces it, leading to hypocapnia (low $CO_2$) while maximizing blood oxygen saturation. Question 12 Which of the following structures connects the kidneys to the urinary bladder? • A. Kidney • B. Urinary bladder • C. Urethra • D. Ureter Correct Answer: D Rationale: The ureters are a pair of long, muscular tubes that use peristalsis to move urine from the renal pelvis of the kidneys down into the urinary bladder. The urethra drains urine out of the bladder to the exterior. Question 13 Which of the following connects muscles to bones? • A. Ligaments • B. Tendons • C. Synovial membrane • D. Periosteum Correct Answer: B Rationale: Tendons are tough bands of fibrous connective tissue that securely attach skeletal muscles to bones, transmitting force to create movement. Ligaments attach bone to bone. Question 14 Which of the following cell organelles uses the genetic information in mRNA to synthesize proteins? • A. Nucleus • B. Mitochondrion • C. Nucleolus • D. Ribosome Correct Answer: D Rationale: Ribosomes serve as the structural site for translation, decoding the messenger RNA (mRNA) transcript and linking amino acids together to build polypeptides. Question 15 In a blood pressure reading of 130/80 mmHg, 130 and 80 refer to [blank] blood pressure, respectively: • A. Systolic and diastolic • B. Diastolic and systolic • C. High and low • D. Low and high Correct Answer: A Rationale: The top number (130) represents the systolic pressure when the ventricles contract, while the bottom number (80) represents the diastolic pressure when the ventricles relax between beats.