Physio Final Exam
Human Body
Human Body
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7. Which of the following stimulates the secretion of parathyroid hormone (PTH)?
1. Calmodulin is most closely related, both structurally and functionally, to which of the following proteins?
1.Smooth muscle that exhibits rhythmical contraction in the absence of external stimuli
also necessarily exhibits which of the following?
1. Tetenic contraction of skeletal muscle fibers results from accumulative increase in the intraceullular contraction of which of the following?
1. Which of the following decreases in length during the contraction of a skeletal muscle fiber?
1. A cross-sectional view of a skeletal muscle fiber through the H zone would the presence of what?
1. In normal, healthy muscle, what occurs as a result of propagation of an action potential to the terminal membrane of a motor neuron?
1. In what way does visceral smooth muscle differ from skeletal muscle?
1. Which of the following statements about smooth muscle contraction is most accurate?
1. Skeletal muscle contraction is terminated by which action?
1. Excitation-contraction coupling in skeletal muscle involves all of the following events except one. Which one is not involved?
1. Which of the following parts of the body has cortical motoneurons with the largest representation on the primary motor cortex area:
3.Which thalamic nucleus is relay station for sensory information from head region.
2. Which cerebellar neurons has inhibitory effects on deep cereballar nuclei-.
4. which ascending spinal tract is responsible for crude touch sensation:
5. which part of CNS use disinhibition to produce their effects:
10. which brodmans area is responsible for abbility to speak or write:
9. Which type of EEG waves has the highest frequency:
8. Which of the following mediators is not major for extrapyramidal system:
6. Which of the following structures has a primary function to coordinate rate, range and force and direction of movment:
1. Choose incorrect sentence: Cholecystokinin (CCK)
2. Hyperventilation results in the increase of arterial pO2 and reduction pCO2. What changes in diameter of cerebral vessels will be observed in these terms?
more pO2 / less pCO2
3. The value of Tiffeneau-Pinelli index (FEV1/FVC ratio) is predominantly determined by:
calculated ratio used in the diagnosis of obstructive and restrictive lung disease
Anatomical dead space is:
194.Resistance in airways leads to
Obstruction in airways causes that
Volume of air inhaled into the lungs depends on pressure changes in a pleural cave and on lung compliance, thus the changes of pressure in the airways result in volume changes of the chest cage.
11. a preterm infant has a surfactant deficiency. Without surfactant, many of the alveoli collapse at the end of each expiration, which lead to pulmonary failure. Which of the following changes is present in a preterm infant, compared with a normal infant?
Alveolar surface tension vs. pulmonary compliance
--> CHOOSE THE RIGHT PAIR
a. Decreased vs. increased
b. Increased vs. no change
c. Decreased vs. no change
d. Increased vs. decreased
d. increased alveolar surface tension and decreased pulmonary compliance
--> as type II alveolar cells produce surfactant which decreases surface tension to prevent collapse of alveoli
-> pulmonary compliance: is a measure of the lung's ability to stretch and expand (distensibility of elastic tissue)
2. anatomic dead space
Dead space= part in lung that does not participate in gas exchange
3. partial pressure of O2 and CO2 in alveolar air equals - in arteries:
3. partial pressure of O2 and CO2 in alveolar air equals - in veins:
4. diffusion of oxygen and carbon dioxide is influenced by:
5. vital capacity is:
7. tidal volume during quiet breathing equals:
13. hypercapnia:
10. a chemosensitive are located in the medulla modulates respiration when the blood level of certain substances is not optional. The chemosensitive area responds to changes in the blood levels of which of the following substances?
--> CHOOSE CORRECT ANSWER:
Oxygen(O2) Carbon Dioxide(CO2) Hydorgen Ion (H+)
a. No yes no
b. Yes yes yes
c. No yes yes
d. Yes yes no
c. respond to PCO2 and H+
Chemoreceptors in the medulla and carotid bodies respond to increased changs in PCO2 and little to H+
increased PCO2 = leads to increased ventilation
1. peripheral chemoreceptors
6. switch off neurons that shorten inspiration
8. total lung capacity equals:
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Flashcards
6. Which of the following structures has a primary function to coordinate rate, range and force and direction of movment:
