14 May WHAT CAUSES THE ALVEOLI TO MAINTAIN ITS CIRCULAR SHAPE SO THAT THE INSPIRED OXYGEN CAN DIFFUSE THE RED BLOOD CELL?
One of the classic tools for treating depression which is not corrected by drugs is electroconvulsive shock. The patient has his/her brain electrically stimulated so as to induce convulsion. The treatment works in that it decreases the level of depression. How would the electroconvulsive treatment work?
A: cause a decrease in blood flow to the brain areas of the brain that control mood.
B: cause in increase in postsynaptic chemical release in those areas of the brain that control mood.
C: cause a physical rearrangement of DNA in the brain to increase serotonin levels in those ares of the brain that control mood.
D: cause an increase in presynaptic chemical release in those areas of the brain that control mood.
2) Depression affects how you…
A: all of these
B: feel
C: behave
D: your physiology
E: think
3) A victim of a vampire attack has passed out. The vampire took too much blood. You give the victim an intravenous dose of adrenaline. Which of the following would the adrenaline affect first?
A: sympathetic tone
B: afterload
C: preload
D: contractility of cardiac capillaries
3) An 80 year old woman is found in her small living room to be cold to the touch. She is lying face down on the floor. Her face is bruised as well as her fingers. The bruises are due to which of the following?
A: damage to her heart
B: damage to all her blood vessels in her face which allows blood to leave the capillaries
C: damage to the autonomic nervous system which controls blood flow to the face
D: damage to the capillaries in her face which allows blood to leave the capillaries
4) A motor neuron is severely damaged by the infection of a poliovirus. Which of the following will be an expression of this infection?
A: patient’s sympathetic nervous system will not be able to increase heart rate
B: patient will not be able to sense pain
C: patient will be able to walk but not sense when he is walking
D: patient will not be able to move depending on which motor neurons are affected
5) The left atrium is damaged and is generating a great resistance to blood coming from pulmonary vein. What happens due to this pressure?
A: back up of blood causing a subsequent back flow of blood into the inferior vena cava
B: back up of blood into the pulmonary artery causing a generation of coronary artery edema
C: back up of blood into the pulmonary vein subsequently causing blood to leave the capillaries in the lung
D: back up of blood causing back flow into the superior vena cava
6) You have your earbuds in and listening to your favorite rock group: Hairy Legs. However, your cochlea has been destroyed due to a viral infection. Based on the information, which of the following is correct?
A: external ear will received and interpret the sound- similar to what occurs in any animals that depends on capturing sound.
B: Hammer, Anvil, Stirrups will be activated since they transfer the Hairy Legs songs from outside of ear to the cochlea. However, there will be “no” activation of the auditory cortex.
C: Hammer, Anvil, Stirrups will be activated since they transfer the Hairy Legs songs from outside of ear to the cochlea. However, there will be activation of the auditory cortex.
D: auditory cortex will receive and interpret the Hairy Legs’ latest song: Hummingbird
7) During inspiration, the inspired air enters the alveoli. What causes the alveoli to maintain its circular shape so that the inspired oxygen can diffuse the red blood cell?
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