NAB exam questions and 100% correct answers 2024

Integumentary - correct answer Skin Circulatory - correct answer Decreased cardiac output. Enzyme action on heart, heat rate and ability of heart to return to normal after. illness Respiratory - correct answer Lungs become restricted by rib cage; rib cage size increases; lung tissue becomes more rigid; decrease in respiratory strength; low lung expands less, upper lung more. Musculoskeletal - correct answer Decreased muscle fibers and tissue, muscle strength; increased waste products in muscle (lactic acid, carbon dioxide); muscle cells accumulate fat and collagen; bones become porous and lose bone mass; calcium leaves the bone. Digestive - correct answer Teeth loosen and gums recess; loss of taste buds. Decrease in: enzyme actions, hydrochloric acid (HCL), peristalsis, ability to tolerate fat, gag reflex and sphincter control. Endocrine - correct answer Decrease in cells, size of glands, gland secretions, ability to adapt to stress because of decreased adrenaline, decreased thyroid secretions. Urinary - correct answer Decrease in size of kidneys, functional cells, vascular circulation to kidneys, urine produced and eliminated, filtering functions of kidneys, decreased tone of urinary muscles and ability to control flow of urine. Reproductive - Women - correct answer Decrease in size of ovaries, uterus, amount of hormonal secretions. Reproductive - Males - correct answer Prostrate enlarges, decrease size of testes.