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Unformatted text preview: 0.5 15.
vascular stimulation Most blood vessels are innervated only by the _____ division Feedback A. sympathetic Student Response Value
100% B. parasympathetic 0% Score: Feedback 0.5/0.5 17.
spatial summation If several inputs to a reflex pathway each produce simultaneous sub-threshold depolarizations, it could result in _____ at the receptive region of the
A. temporal summation
B. spatial summation
C. action potential
D. All of the above.
E. #1 and #3 only.
Score: Value Feedback 0%
0% 0/0.5 18.
Gates at Nodes In myelinated peripheral nerves the voltage gates are located only at the Nodes of Ranvier. A. True Student Response Value
100% B. False 0% Score: Feedback 0.5/0.5 19.
saltatory conduction When an action potential spreads from one node of Ranvier to the next it is called _______ and it travels _________ than other forms of transmission.
saltatory conduction, faster
100% B. saltatory conduction, slower
C. synaptic transmission, faster
D. synaptic transmission, slower 0%
0% Score: 0.5/0.5 Feedback 20.
spinal ganglion The cell bodies of spinal sensory neurons are located in:
A. spinal gray matter
B. spinal white matter
C. dorsal root ganglion Value
100% D. ventral root ganglion 0% Score: Feedback 0.5/0.5 1.
syndesmosis A syndesmosis is actually a small _____ which connects bones in a non-movable way. A. tendon
B. ligament Student Response Value
100% C. aponeurosis
D. retinaculum 0%
0% Score: Feedback 0.5/0.5 2.
conscious sensations Which of the following tracts is responsible for conscious sensations?
A. spinocerebellar tract
B. Fasciculus cuneatus and fasciculus gracilis
C. spinothalamic tract
D. both #2 and #3
100% 0.5/0.5 3.
Curare Curare acts as a muscle relaxant by competing with this process: Feedback Student Response
A. Calcium ions enter the axon
B. Calcium ions are pumped back into the
C. Acetylcholine is released into the synaptic cleft
D. Acetylcholine binding to post-synaptic receptors
on the sarcolemma.
E. Na+ moves across the sarcolemma into the
F. Breakdown of ACh by AChase.
G. Opening of the voltage-gated sodium channels.
H. Opening of potassium channels.
I. The troponin-tropomyosin complex shifts,
exposing the active sites on actin.
J. Uptake of ATP by the myosin heads.
K. Attachment of actin-myosin crossbridges and
swiveling of the myosin heads.
Score: Value Feedback 0%
0% 0/0.5 4.
Function of multipolar neurons Multipolar neurons function as:
spinal and cranial nerve sensory neurons
A. 0% B.
100% Score: spinal and cranial nerve motor neurons
spinal and cranial interneurons
all of the above
#2 and #3 only Value Feedback 0/0.5 5.
elastic connective tissue The stroma of the lungs contains _____ which permits its expansion and recoil.
areolar connective tissue
A. 0% B. elastic connective tissue
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- Fall '12