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Kelsang
Physiology 7-13
Question | Answer |
---|---|
What neurotransmitter inhibits the transmission of pain impulses? | Enkephalins |
What do neurotransmitters do once they are released in a synapse? | Receptor sites on the postsynaptic neuron |
What is an ion channel that opens in response to a sensory stimulus called? | Stimulus-gated channel |
What term describes a membrane that exhibits a membrane potential? | Polarized |
What part of the brain can directly influence or inhibit the release of hormones from the pituitary? | Hypothalamus |
Which receptor can acetylcholine stimulate? | Nicotinic |
What neurotransmitters are released from the axon terminals of autonomic neurons? | Acetylcholine and norepinephrine |
What is the second largest part of the brain, located just below the posterior portion of the cerebrum? | Cerebellum |
What is one of the few hormones that functions on a positive-feedback loop? | Oxytocin |
What is the major hormone produced by the corpus luteum? | Progesterone |
What is the physiological mechanism that dissolves clots known as? | Fibrinolysis |
What is the localized pressure gradient needed to maintain blood flow in a tissue called? | Perfusion pressure |
What is the loose fitting, inextensible sac called that covers the heart? | Pericardium |
What type of membranous tissue lines the heart and blood vessels? | Endothelium |
What is the term for the ingestion and destruction of microorganisms or other small particles? | Phagocytosis |
What are the functions of the lymph nodes? | Defense and hematopoiesis |
What does the vital capacity equal to the sum of? | Inspiratory reserve volume, tidal volume, and expiratory reserve volume |
What is the major form by which carbon dioxide is transported in the circulatory system? | Bicarbonate ions |
What does the exact amount of oxygen in blood mainly depend on? | Hemoglobin |
What hormone stimulates the gallbladder to release bile? | Cholecystokinin (CCK) |
What substances are absorbed into the lymph capillaries? | Glycerol and fatty acids |
What is the term for the wave-like ripple of the muscle layer of the GI tract? | Peristalsis |