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KrystleJYumang
Physiology Wks 7-13 - Study Stack Assignment II
| Question | Answer |
|---|---|
| When neurotransmitters from synaptic knobs stimulate a postsynaptic neuron in rapid succession, their effect can add up over a brief period to produce an action potential. This is ... a) temporal summation b) twitch c) spatial summation d) tetanus | temporal summation |
| Movement of the membrane potential away from zero (below the usual RMP) is called: a) hypopolarization b) depolarization c) hyperpolarization d) repolarization | hyperpolarization |
| Dopamine, epinephrine, and norepinephrine are classified as: a) acetylcholine b) neuropeptides c) catecholamines d) none of the above | catecholamines |
| Many cerebral functions have typical locations. This fact is known as ... a) cerebral plasticity b) cerebral mapping c) cerebral localization d) neurophysiology | cerebral localization |
| Another name for the parasympathetic nervous system is the __________ nervous system. a) thoracolumbar b) craniosacral c) visceral d) cholinergic | craniosacral |
| If the center of a reflex arc is the brain, the response it mediates is called a ... a) cranial reflex b) spinal reflex c) cranial reaction d) spinal reaction | cranial reflex |
| The clear and potassium-rich fluid that fills the labyrinth is... a) endolymph b) perilymph c) exolymph d) none of the above | endolymph |
| Erythrocytes begin their maturation sequence in red bone marrow from nucleated cells known as: a) hemoglobin b) osteons c) erythroblasts d) hematopoietic stem cells | hematopoietic stem cells |
| Each cortical nodule is composed of packed lymphocytes that surround a less dense area called a ... a) germ center b) trabecula c) lymph node d) germinal center | germinal center |
| During inspiration, the expansion of the lungs causes: a) cohesion of visceral and parietal pleura b) a pressure gradient from alveoli to atmosphere c) a decrease in alveolar pressure d) an increase in intrathoracic pressure from about -6 to -4 mmHg | a decrease in alveolar pressure |
| Polysaccharides are hydrolyzed into disaccharides by enzymes known as: a) lipase b) proteases c) maltase d) amylase | amylase |
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KYumang
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