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WorksheetsQuiz Night: Physiology
Total questions: 20
Worksheet time: 15mins
One of the following steps in the excitation contraction coupling is similar to both skeletal and smooth muscles:
activation of myosin
exposure of active sites in actin
release of calcium from sarcoplasmic reticulum
binding of calcium to troponin C
Force of contraction of the heart may be increased by
successive application of supramaximal stimuli
stimulation of the Na-Ca pump
inhibition of beta-1 receptor
inhibition of the Na-K pump
At rest, this response is unexpected
gastric enzyme secretion
increased salivary secretion
relaxation of gastrointestinal sphincter
mydriasis
Cholecystokinin inhibits
pancreatic HCO3- secretion
gastric emptying
contraction of gallbladder
relaxation of sphincter of Oddi
This is a lineage specific growth factor for megakaryocytes
G-CSF
GM-CSF
EPO
TPO
This is a fetal form of hemoglobin
alpha 2, gamma 2
alpha 2, delta 2
alpha 2, beta 2
alpha 2, epsilon 2
The following statements are correct except
The intrinsic pathway is usually triggeredby thrombin formed by the extrinsic pathway.
Intrinsic pathway begins with exposure ofblood to collagen from traumatized tissue.
The prothrombin time measures the intrinsic to common pathway.
Hemophiliacs have a defect in the intrinsicpathway.
Heparin is a potent anti-coagulant and its action is manifested by
prolonged bleeding time
prolonged PT
prolonged PTT
all of the above
An increase in this parameter will decrease blood pressure:
total peripheral resistance
afterload
venous return
aldosterone
Characteristic of a cephalic phase of an integrated response to a meal
increase in sympathetic outflow
chewing occurs
stimulation of salivary gland secretion
bolus of food stimulating mechanical receptors
Which neurotransmitter triggers REM Sleep?
Acetylcholine
Dopamine
GABA
Glycine
Characteristic of Type II muscle fibers, EXCEPT
Fatigable
low capillary density
high capacity for glycolysis
slow contraction velocity
Pathogen presented by MHC Class I molecules
Ascaris lumbricoides
Influenza virus
Mycobacterium tuberculosis
Streptococcus pneumonia
A patient has a pH of 7.39 and a PaCO2 of 43 mmHg. Which of the following conclusions can be drawn regarding the acid base status of the patient?
normal acid-base status
compensated metabolic acidosis
partly compensated respiratory acidosis
normal anion gap metabolic acidosis
This condition suppresses the secretion of growth hormone
decreased serum cortisol levels
increased dopamine secretion
decrease thyroid hormone levels
increased serum glucose
17 year old female patient with heavymenses, was noted to be pale and with easy fatigability. This may bring a decreased oxygen carrying capacity of the blood. One knows that every 1g of Hgb cancarry this much oxygen
2.56mL
1.34 mL
100 mL
50 mL
Magnesium is primary reabsorbed in which part of the nephron?
Proximal convoluted tubule
Loop of Henle
Distal convoluted tubule
Collecting tubules
The basic rhythm of respiration isgenerated mainly by which collection of neurons in the respiratory center?
Ventral respiratory group
Dorsal respiratory group
Pneumotaxic center
Apneustic center
This hormone acts on its target tissue/s using inositol 1,4,5-triphosphate (IP3) as a second messenger.
Insulin
Atrial natriuretic peptide
Parathyroid hormone
Thyroid releasing hormone
This would cause a shift to the right in the oxygen-hemoglobin dissociation curve?
Increase in pH
Decrease in CO2
Decrease in temperature
Exercise
