What do dead keratinized cells form?
A) hair shaft B) hair root
C) hair bulb D) arrector pili muscle
Answer: A
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The disease called multiple sclerosis involves an immune response against myelin of the central nervous system, causing scar formation (sclerosis) within the neural tissue. How would this affect nerve impulse conduction?
Which of the following structures is INCORRECTLY matched to its function?
A) Bulbourethral gland --- secretion of nutrients and enzymes B) Epididymis --- sperm concentration and storage C) Fallopian tube --- common site of fertilization D) Placenta --- maternal/fetal endocrine and exchange organ
Which structure delivers venous blood from the tissues and organs of the abdominal and pelvic cavities, and from the lower limbs?
A) coronary veins B) pulmonary trunk C) superior vena cava D) fossa ovalis E) inferior vena cava
Nitroglycerine causes vasodilation of blood vessels due to its effects on levels of ________.
A. prostacyclin B. nitric oxide C. bradykinin D. histamine