Complete guide to pass-HESI A2 Anatomy and Physiology questions & answers

What is the primary function of the skeletal system? ️☑️ It provides support, protection for organs, enables movement with muscles, and stores minerals such as calcium and phosphorus. Which organ system is responsible for transporting oxygen, nutrients, and hormones throughout the body? ️☑️ The circulatory system. What type of tissue covers body surfaces and lines internal organs? ️☑️ Epithelial tissue. Which structure in the cell controls cellular activities? ️☑️ The nucleus. What is the basic structural and functional unit of the body? ️☑️ The cell. Which muscle type is voluntary and attached to bones? ️☑️ Skeletal muscle. What is the main function of red blood cells? ️☑️ To transport oxygen using hemoglobin. Which organ produces insulin? ️☑️ The pancreas. What is the role of the respiratory system? ️☑️ To exchange gases, bringing oxygen into the body and removing carbon dioxide. Which part of the brain regulates balance and coordination? ️☑️ The cerebellum. What is homeostasis? ️☑️ The maintenance of a stable internal environment in the body. Which blood vessel carries blood away from the heart? ️☑️ Arteries. 2 What is the function of white blood cells? ️☑️ To defend the body against infections and pathogens. Which organ filters blood and produces urine? ️☑️ The kidneys. What is the main function of the digestive system? ️☑️ To break down food into nutrients that can be absorbed by the body. Which structure connects muscle to bone? ️☑️ A tendon. Which part of the eye controls the amount of light entering? ️☑️ The iris. What is the function of the lymphatic system? ️☑️ To return excess fluid to the bloodstream and support immune defense. Which hormone regulates blood calcium levels? ️☑️ Parathyroid hormone. What is the largest organ in the human body? ️☑️ The skin. Which chamber of the heart pumps oxygenated blood to the body? ️☑️ The left ventricle. What is the function of platelets? ️☑️ To help blood clot and prevent bleeding. Which organ is primarily responsible for detoxification? ️☑️ The liver. What is the main function of neurons? ️☑️ To transmit electrical and chemical signals in the nervous system. Which system controls voluntary and involuntary actions? ️☑️ The nervous system. What is the function of alveoli in the lungs? ️☑️ To facilitate gas exchange between air and blood. Which hormone increases blood glucose levels? ️☑️ Glucagon. 3 What is the role of the thyroid gland? ️☑️ To regulate metabolism through hormone secretion. Which type of joint allows the greatest range of motion? ️☑️ A ball-and-socket joint. What is the function of the large intestine? ️☑️ To absorb water and form feces. Which part of the brain controls heartbeat and breathing? ️☑️ The medulla oblongata. What is the primary function of the endocrine system? ️☑️ To produce and regulate hormones. Which organ stores bile? ️☑️ The gallbladder. What is the role of hemoglobin? ️☑️ To bind and transport oxygen in red blood cells. Which muscle type is found in the walls of hollow organs? ️☑️ Smooth muscle. What is the function of the spinal cord? ️☑️ To transmit signals between the brain and the rest of the body. Which organ produces bile? ️☑️ The liver. What is the smallest unit of bone structure? ️☑️ An osteon (Haversian system). Which system includes the skin, hair, and nails? ️☑️ The integumentary system. What is the function of the hypothalamus? ️☑️ To regulate body temperature, hunger, thirst, and link the nervous and endocrine systems. Which blood component carries oxygen? ️☑️ Red blood cells. What is the function of the pancreas in digestion? ️☑️ To produce digestive enzymes and bicarbonate. 4 Which organ is responsible for sound production? ️☑️ The larynx. What is the function of synovial fluid? ️☑️ To lubricate joints and reduce friction. Which system protects the body against disease? ️☑️ The immune system. What is the role of the trachea? ️☑️ To conduct air to the lungs. Which organ filters lymph? ️☑️ The lymph nodes.