In bright sunlight, the diameter of the pupil ________ due to contraction of the ________.
A. increases; dilator pupillae
B. decreases; ciliary muscles
C. decreases; suspensory ligaments
D. decreases; sphincter pupillae
E. increases; ciliary ring
Answer: D
You might also like to view...
What is the function of the serous membranes?
What will be an ideal response?
Which of the following taste sensations is incorrectly matched to the chemicals that produce it?
A) salty-metal ions B) sweet-organic substances such as sugar and some lead salts C) umami-triglycerides and fatty acids D) bitter-alkaloids E) sour-acids
Which lymphatic organ is poorly developed at birth and develops postnatally when invaded by immunocompetent lymphocytes?
A. Thymus B. Spleen C. Bone marrow D. Tonsil E. Lymph node
Which of the following is not true about the anatomy of the urinary system?
A. The kidneys are retroperitoneal. B. The ureters connect the kidneys to the urinary bladder. C. The urethra of males is longer than the urethra of females. D. The kidneys are at equal heights within the pelvic cavity. E. The right kidney is located more inferiorly than the left kidney.