Most tested Nursing ATI TEAS 7 Test questions and answers

What is the primary function of red blood cells in the human body? ️️ To transport oxygen from the lungs to body tissues and carry carbon dioxide back to the lungs for exhalation Which organ is primarily responsible for filtering blood and producing urine? ️️ The kidneys What is the basic structural and functional unit of the nervous system? ️️ The neuron Which vitamin is essential for proper blood clotting? ️️ Vitamin K What is the normal range for adult resting heart rate? ️️ 60–100 beats per minute Which part of the brain controls balance and coordination? ️️ The cerebellum What type of tissue connects muscles to bones? ️️ Tendons What is the main function of platelets? ️️ To assist in blood clotting Which organ produces insulin? ️️ The pancreas What is the largest organ in the human body? ️️ The skin Which blood type is known as the universal donor? ️️ O negative What is the function of alveoli in the lungs? ️️ Gas exchange between oxygen and carbon dioxide Which system is responsible for producing hormones? ️️ The endocrine system 2 What is the normal pH range of human blood? ️️ 7.35 to 7.45 Which chamber of the heart pumps oxygenated blood to the body? ️️ The left ventricle What is the primary function of white blood cells? ️️ To fight infection and protect the body from pathogens Which bone is known as the thigh bone? ️️ The femur What is the main function of the small intestine? ️️ Absorption of nutrients into the bloodstream Which gas is most abundant in Earth’s atmosphere? ️️ Nitrogen What is the function of hemoglobin? ️️ To carry oxygen in red blood cells Which organ system includes the trachea and bronchi? ️️ The respiratory system What is the function of the lymphatic system? ️️ To help defend the body against infection and maintain fluid balance Which part of the cell contains genetic material? ️️ The nucleus What is the function of the cerebrum? ️️ Responsible for thinking, memory, and voluntary movement Which mineral is essential for oxygen transport in the blood? ️️ Iron What is the main function of the large intestine? ️️ Absorption of water and formation of feces Which hormone regulates blood glucose levels? ️️ Insulin What is the function of the urinary bladder? ️️ To store urine before excretion 3 Which organ is responsible for detoxifying chemicals in the body? ️️ The liver What is the function of the mitochondria? ️️ To produce ATP (energy) for the cell Which structure prevents food from entering the airway during swallowing? ️️ The epiglottis What is the primary function of the skeletal system? ️️ To support, protect organs, and enable movement Which type of blood vessel carries blood away from the heart? ️️ Arteries What is the function of the adrenal glands? ️️ To produce stress hormones like adrenaline and cortisol Which part of the eye controls the amount of light entering? ️️ The iris What is the main function of the pancreas besides insulin production? ️️ Secreting digestive enzymes Which system is responsible for voluntary movement? ️️ The muscular system What is the role of synovial fluid? ️️ To lubricate joints and reduce friction Which organ filters air before it reaches the lungs? ️️ The nose What is the function of the placenta during pregnancy? ️️ To supply oxygen and nutrients to the fetus and remove waste Which part of the brain controls breathing and heart rate? ️️ The medulla oblongata What is the function of DNA? ️️ To store genetic instructions for growth and development Which electrolyte is most important for nerve conduction? ️️ Sodium 4 What is the function of the thyroid gland? ️️ To regulate metabolism Which blood component carries oxygen? ️️ Red blood cells What is the role of the diaphragm in breathing? ️️ It contracts and expands to allow lung inflation and deflation Which organ system includes the skin, hair, and nails? ️️ The integumentary system What is the function of antibodies? ️️ To identify and neutralize pathogens