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Physiology Weeks 1-6

Study Stack 1

QuestionAnswer
Which membrane receptor acts to directly change ion permeability when stimulated? Gated-channel receptor
The action potential seems to “leap” from node to node along a myelinated fiber. This type of impulse regeneration is called __________ conduction saltatory
Movement of the membrane potential away from zero (below the usual RMP) is called hyperpolarization.
Anaerobic respiration results in the formation of an incompletely catabolized molecule called lactate .
Which type of movement occurs between the carpal and tarsal bones and between the articular facets of adjoining spinal vertebrae? Gliding
If oxygen is available, the pyruvate molecules formed by glycolysis are prepared to enter the next phase of aerobic cellular respiration, called the citric acid cycle.
Diffusion moves down a concentration gradient.
Which type of connective tissue helps newborns maintain body temperature by producing heat Brown fat
Proteins are polymers of amino acids.
The carbon-containing molecules formed by living things are often called organic molecules.
Muscle tone is maintained by negative feedback mechanisms
In endochondral ossification, what happens to the chondrocytes? They die in the calcified matrix that surrounds them and form the medullary cavity.
Of the five epidermal cell layers, the only one that can undergo mitosis is the stratum basale
Which cells form the blood-brain barrier that protects the brain from harmful substances in the blood Astrocytes
A saturated fatty acid is one in which all available bonds of its hydrocarbon chain are filled
A chemical that reduces the amount of activation energy needed to start a chemical reaction is a catalyst.
The energy required for muscular contraction is obtained by hydrolysis of ATP
Created by: superchamalie1
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