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This document has 100 items of physiology questions perfect for reviewing for licensure exam.
Partial contraction following low rate of nerve impulses
a. twitch b. tetanus c. treppe d. tone
Answer: D (pp 81 – 82)
The mechanism for the perception of sound localization is
a. higher frequency sound waves are heard louder in the ear .near the source of
b. lower frequency sound waves are heard are heard farther equally by both ears c. higher amplitude sound waves arrive in the ear near the source of sound d. faster time of arrival at the ear farther from the source of sound
Answer: C (pp 656 – 657)
The flow of endolymph postrotatory from a counterclockwise direction is
a. stopped immediately as one stops rotating b. in opposite direction of rotation in both ears c. continuous in the same direction of rotation d. to the right in right ear but to the left in left ear
Answer: C (p 695)
Which of the following is true of the conducting system?
a. it contains 550 ml of air b. it actively participates with gas exchange c. It is also known as the anatomic dead space d. it is the area of the respiratory system which is perfused but not
Answer: C (pp 477-478)
Which is true about intraalveolar pressure?
a. it is higher than atmospheric pressure during expiration b. it is the same as atmospheric pressure during inspiration c. it is the same as intrathoracic pressure during inspiration d. does not change during inspiration and expiration
Answer: A (pp 478 – 479)
Which of the following is true of SURFACTANT?
a. its presence decreases the work of breathing b. it is a secretion of the Clara cells of the alveoli c. it is responsible for the elasticity of the respiratory system d. synthesis is only observed perinatally within 48-72 hrs.
Answer: A (pp 479-480)
The process of gas exchange in the lungs is by
a. simple diffusion
b. facilitated diffusion c. endocytosis
Answer: A (pp 506-507)
The following have direct effects on the respiratory center in the medulla
a. Carbon Dioxide
c. Hydrogen ions d. A and C
Answer: D (p 516)
True about the Frank-Starling mechanism
a. once the heart rate increases above a critical level, heart strength decreases b. strong vagal stimulation decreases heart contraction by 20 to 30% c. cardiac output can be increased by sympathetic stimulation d. greater muscle stretch will result to greater force of contraction
Answer: D (p 111-112)
What does NOT INCREASE gastric acid secretion?
a. High protein meals
b. Histamine secretion c. Cholinergic stimulation
d. Starchy food Answer: D (pp. 797-798)
What increases the absorptive surface of the small intestines by 20X compared to the surface of a smooth tube?
a. Plicae circulares
b. Brush borders c. Villi d. Valvulae conniventes
Answer: B (pp. 812-813)
What is TRUE regarding the defecation reflex?
a. It is normally initiated by chemical irritation of the rectal mucosa b. The enteric nervous system in the rectum mediates intrinsic defecation
c. This reflex is permanently inhibited by keeping the external sphincter contracted d. Distension of the anus initiates contractions of the rectum
Answer: B (pp. 789-790)
A patient with impaired cardiac function with ejection fraction 40% is expected to have
a. normal renal blood flow
b. increased effective renal blood flow c. increased renal plasma flow d. decreased GFR
Answer: D (pp 309 – 316)
How does the kidney handle bicarbonate?
a. the titrable acidity is equal to the total amount of HCO-3 that is reabsorbed b. most of filtered HCO-3 is reabsorbed through Na+H+ exchanger in the proximal
c. reabsorption of filtered HCO-3 in the proximal convoluted tubule contributes to
net secreted H+
d. formation of urinary NH+4 from glutamine leads to conservation of filtered HCO-
Answer: A (pp 396 – 397)
Tubular fluid is isosmotic in which segment of the tubule?
a. distal convoluted tubule
b. descending limb of Henle’s loop c. proximal convoluted tubule d. ascending Henle’s loop
Answer: C (pp 332 – 338; 349)
The amount of total body water depends on
a. total amount of albumin
b. total reabsorbed sodium c. total amount of extracellular protein d. total reabsorbed potassium
Answer: A (pp 348 – 349)
When a patient suffers from metabolic acidosis, which of the following will happen in the kidneys
a. the GFR is increased
b. increased HCO3- excretion c. renin is secreted d. increased new HCO3 production
Answer: D (pp 396 – 397)
A patient with bronchial asthma in acute exacerbation will have which of the following acid base problems
a. increased respiratory rate leading to decreased pCO2 b. increased respiratory rate leading to increased pO2 arterial c. relatively decreased renal excretion of [H+] d. relatively increased renal excretion of [HCO3]
(pp 796 – 797)
A transport system that is carrier-mediated, energy requiring
a. Falicitated diffusion
b. Active transport
c. Endocytasis d. Simple diffusion
Chapter 4 page 52
During the start of skeletal muscle contraction, energy source for ATP production comes from which of the following?
a. Muscle glycogen
b. Liver glycogen c. Free fatty acids d. Creatine phosphate
Chapter 6 page 72
In skeletal muscle contraction, one of the following shortens
b. Myosin c. Sarcomere d. tubule
Chapter 6 page 72
In a skelatel muscle contraction and relaxation, the only event that is non-energy requiring is
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