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Optometry Board Practice Test for the NBEO® Part 1 Test #2 – Ocular Physiology This test is comprised of 10 items, which must be completed within 10 minutes. |
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The left lung is unique in which of the following aspects?
C. Lacks a middle lobe. The left lung only has 2 lobes in order to allow the heart to fit. Right lung has 3 lobes.
C. Lacks a middle lobe. The left lung only has 2 lobes in order to allow the heart to fit. Right lung has 3 lobes.
A 25 years old optometric student has his lung function evaluated through a spirometric exam. The following information is obtained from this exam: Total lung capacity: 6,000 ml., Vital capacity: 4,800 ml., Tidal volume: 500 ml; Residual volume; 1,200 ml. Knowing that his respiratory rate is 14 / minute please determine his minute ventilation.
D. 7000 ml. 500 x 14=7000 .Minute ventilation = tidal volume x respiratory rate
D. 7000 ml. 500 x 14=7000 .Minute ventilation = tidal volume x respiratory rate
Angiotensin II will specifically promote which of the following?
B. Angiotensin II is a biochemical in the body that promotes expansion of the plasma volume by promoting the release of renal sodium and water absorption. This will cause vasodilation of the body blood vessels.
B. Angiotensin II is a biochemical in the body that promotes expansion of the plasma volume by promoting the release of renal sodium and water absorption. This will cause vasodilation of the body blood vessels.
Which of the following is the major hormone that regulates water loss?
D. Antidiuretic Hormone (ADH) helps regulate the amount of water in your body. It works to control the amount of water your kidneys reabsorb as they filter out waste from your blood. This hormone is also called arginine vasopressin
D. Antidiuretic Hormone (ADH) helps regulate the amount of water in your body. It works to control the amount of water your kidneys reabsorb as they filter out waste from your blood. This hormone is also called arginine vasopressin
The portion of the kidney identified by letter B is called?
A. Renal Medulla. Renal pelvis is F. Renal column is B. Calyces is E
A. Renal Medulla. Renal pelvis is F. Renal column is B. Calyces is E
The mass of tissue localized between the sternum, vertebral column and the lungs is known as.
D. The mediastinum is a space in the thorax that contains a group of organs, vessels, nerves, lymphatics and their surrounding connective tissue. It lies in the midline of the chest between the pleura of each lung and extends from the sternum to the vertebral column
D. The mediastinum is a space in the thorax that contains a group of organs, vessels, nerves, lymphatics and their surrounding connective tissue. It lies in the midline of the chest between the pleura of each lung and extends from the sternum to the vertebral column
Angiotensin I,I in combination with the other mechanisms that regulate blood volume / blood pressure is expected to produce which of the following effects on the renal function?
C. In addition to these arteriolar actions, angiotensin II constricts the mesangial cells, an effect that tends to lower the GFR by decreasing the surface area available for filtration.
C. In addition to these arteriolar actions, angiotensin II constricts the mesangial cells, an effect that tends to lower the GFR by decreasing the surface area available for filtration.
What Skeletal muscle which surrounds the testes and functions to pull the testes closer to the body when cold temperatures are present?
D. Each cremaster muscle surrounds one of the testicles and its spermatic cord. The muscle helps to move the testicle toward and away from the body to maintain the ideal temperature for sperm production. This is why the scrotum hangs lower in warm conditions and closer to the body in cold weather.
D. Each cremaster muscle surrounds one of the testicles and its spermatic cord. The muscle helps to move the testicle toward and away from the body to maintain the ideal temperature for sperm production. This is why the scrotum hangs lower in warm conditions and closer to the body in cold weather.
If the Buccinator muscle is damaged, then which gland would be impacted?
C. Parotid gland. The human parotid duct (Stensen’s duct) is a single duct arising from the anterior border of the parotid gland. In adults, the parotid duct is about 6–8 cm long. It crosses the masseter muscle and turns medially at almost a right angle to traverse the buccal fat pad and buccinator muscle.
C. Parotid gland. The human parotid duct (Stensen’s duct) is a single duct arising from the anterior border of the parotid gland. In adults, the parotid duct is about 6–8 cm long. It crosses the masseter muscle and turns medially at almost a right angle to traverse the buccal fat pad and buccinator muscle.
Where does blood filtration occur in the nephron of a kidney?
D. Glomerulus. Blood is filtered at the glomerular capillaries. Water and solutes are filtered to the glomerular capsule.
D. Glomerulus. Blood is filtered at the glomerular capillaries. Water and solutes are filtered to the glomerular capsule.