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Axon terminals flash card

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    H) axon terminals
    H) axon terminals
    In the diagram, where are axon terminals?
    dendrites
    dendrites
    Which of the following structures is labeled A in the diagram?
    cell body
    cell body
    Which of the following structures is labeled C in the diagram?
    E) myelin sheath
    E) myelin sheath
    This structure electrically insulates the axon of a neuron to increase the speed of nerve impulse conduction.
    Type I cutaneous mechanoreceptor (Merkel disc)
    Type I cutaneous mechanoreceptor (Merkel disc)
    What specific type of unipolar neuron is shown in the diagram labeled B?
    multipolar neuron
    multipolar neuron
    What is the structural classification of the neuron labeled A?
    Spatial summation
    Spatial summation
    When summation results from buildup of neurotransmitter released simultaneously by several presynaptic end bulbs, it is called
    A) leak channel
    A) leak channel
    Which of these types of channels is involved in leaking sodium and potassium ions across the membrane in order to establish the resting potential of a cell?
    C) reverberating circuit
    C) reverberating circuit
    Which diagram represents a reverberating circuit?
    C) anterior(ventral) root of spinal cord
    C) anterior(ventral) root of spinal cord
    Which of the labeled structures carries exclusively motor information away from the spinal cord?
    G) posterior ramus
    G) posterior ramus
    Where is the posterior ramus?
    I) anterior white column
    I) anterior white column
    Where is the anterior white column?
    D) Lumbar enlargement
    D) Lumbar enlargement
    Which of the following structures is labeled D in the diagram?
    I) coccygeal nerves
    I) coccygeal nerves
    The structure labeled I in the diagram belongs to which group of spinal nerves?
    E) femoral nerve
    E) femoral nerve
    Which of the following nerves is labeled E in the diagram?
    F) subdural space
    F) subdural space
    Where is the subdural space?
    perineurium
    perineurium
    The indicated region is the
    B) thalamus
    B) thalamus
    Which of the labeled structures in the diagram is the thalamus?
    E) cerebellum
    E) cerebellum
    This major portion of the brain is used to monitor movements initiated by the motor areas of the cerebrum.
    B) optic nerve
    B) optic nerve
    Which cranial nerve in the diagram is primarily involved in the sense of vision?
    C) oculomotor nerve
    C) oculomotor nerve
    Which cranial nerve in the diagram has an autonomic motor function primarily involved in near vision accommodation and constriction of the pupil?
    E) trigeminal nerve
    E) trigeminal nerve
    Which cranial nerve in the diagram has a somatic motor function primarily involved in chewing?
    pyramids; it contains nuclei for equilibrium and movements of the eyeball
    pyramids; it contains nuclei for equilibrium and movements of the eyeball
    Which statement is NOT true about the indicated region?
    Acetylcholine
    Acetylcholine
    If the pathway shown in the diagram is a parasympathetic division pathway, which neurotransmitter acts at the effector?
    Autonomic motor pathway
    Autonomic motor pathway
    What type of nervous system pathway is shown in the figure?
    sympathetic postganglionic neurons.
    sympathetic postganglionic neurons.
    The indicated structures contain
    Celiac ganglion
    Celiac ganglion
    Which ganglion supplies the stomach with postganglionic neurons?
    parotid gland.
    parotid gland.
    Postganglionic neurons from the otic ganglion supply the
    X vagus nerve
    X vagus nerve
    Parasympathetic innervation of the liver occurs through
    M) mesenteric ganglion and plexus
    M) mesenteric ganglion and plexus
    Where is the inferior mesenteric ganglion and plexus in the figure?
    A) left vagus
    A) left vagus
    Where is the left vagus (X) nerve in the diagram?
    C) esophageal plexus
    C) esophageal plexus
    Where is the esophageal plexus in the diagram?
    E) renal plexus
    E) renal plexus
    Where is the renal ganglion and renal plexus in the diagram?
    parasympathetic postganglionic neuron.
    parasympathetic postganglionic neuron.
    The structure labeled 3 in the diagram is a
    D) Acetylcholine
    D) Acetylcholine
    What type of neurotransmitter is used by the pathway shown in the figure?

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