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Biology 241 Anatomy & Physiology FINAL REVIEW Exam Questions and Complete Solutions
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Biology 241 Anatomy & Physiology FINAL REVIEW Exam Questions and Complete Solutions
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Biology 241 Anatomy & Physiology FINAL REVIEW Exam Questions and Complete SolutionsThe motor portion of the autonomic nervous system can be divided into - Correct Ans: sympathetic and parasympathetic divisions
With respect to neurons, the term "nerve fiber" refers to - Correct Ans: both axons and dendrites
which of the following organelles is a common protein synthesis site in neurons? - Correct Ans: Nissl Body
Which of the following is not a type of channel used in production of electrical signals? - Correct Ans: ion-gated channel
a polarized cell - Correct Ans: Has a charge imbalance across its membrane, includes most cells of the body, and exhibits a membrane potential.
Na+/K+-ATPase is considered to be an electrogenic pump because - Correct Ans: it contributes to the negativity of the resting membrane potential
depolarizing graded potential - Correct Ans: makes the membrane less polarized
During the resting state of a voltage gated Na+ Channel - Correct Ans: the inactivation is open and the activation gate os closed
saltatory conduction - Correct Ans: occurs only in myelinated axons
the nervous system can distinguish between a light touch and a heavier tough by - Correct Ans: changing
the frequency of impulses sent to sensory centers Faster communication and synchronization are two advantages of - Correct Ans: electrical synapses
An excitatory neurotransmitter _________ the postsynaptic membrane. - Correct Ans: depolarizes
Plasticity means - Correct Ans: Ability to change based on experience
which of the following types of neurons is the most common type of neuron found in the brain and spinal cord? - Correct Ans: multipolar neuron
Chromatolysis - Correct Ans: Break up of Nissl bodies after neural injury.
Hearing your cell phone ring in an otherwise quiet lecture hall is an example of which type of nervous system functions? - Correct Ans: more than one of the types of nervous system functions
which type of depression results in an individual with manic-depressive illness - Correct Ans: dysthymia
which of the following is NOT a major region of the brain? - Correct Ans: cauda equina
Which of the following brain structures consists of the medulla oblongata, pons, and the midbrain? - Correct Ans: Brain stem
Which of the following brain structures consists if the thalamus, hypothalamus, and the epithalamus? - Correct Ans: Dura mater
Which of the following meninges has two layers? - Correct Ans: Cranial dura mater
Which extension of the dura mater separates the two hemispheres of the cerebrum? - Correct Ans: falx cerebri
which of the following structures protects the brain by preventing the movement of harmful substances and pathogens from blood into the brain tissue? - Correct Ans: blood brain barrier
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