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Unformatted text preview: etal muscle
Both 1 and 2
E. Both 2 and 3 A.
0% Feedback 0/0.5 substantia nigra
The brain region involved when insufficient dopamine production produces Parkinson's disease:
C. substantia nigra Value
100% D. basal nuclei
E. pons 0%
12. Feedback 0.5/0.5 Descending tract
A tract with the name vestibulospinal would be:
A. ascending and sensory
B. ascending and motor
C. descending and sensory 0%
0% D. descending and motor 100% Score:
13. Value Feedback 0/0.5 articular cartilage damage
The type of arthritis which begins with damage to articular cartilage from stress or injury is called:
A. rheumatoid arthritis
B. osteoarthritis Value
100% C. bursitis
D. gouty arthritis 0%
14. Feedback 0.5/0.5 choroid plexus
Cerebrospinal fluid is a filtrate from the capillaries of the:
100% B. falx cerebri 0% Feedback Student Response
C. superior sagittal sinus
D. septum pellucidum
15. Value Feedback 0%
0% 0.5/0.5 Action potential
An action potential is generated on the sarcolemma by which event of the following:
A. Calcium ions enter the axon
B. Calcium ions are pumped back into the
C. Acetylcholine is released into the synaptic
cleft by exocytosis.
D. Acetylcholine binds to post-synaptic
receptors on the sarcolemma.
E. Na+ moves across the sarcolemma out of
the muscle cell.
F. Opening of the chemically-gated sodium
G. Opening of the voltage-gated sodium
H. Opening of potassium channels.
I. Binding of calcium ions to Troponin C.
J. Uptake of ATP by the myosin heads.
K. Attachment of actin-myosin crossbridges
and swiveling of the myosin heads.
Score: 16. Value Feedback 0%
0% 0/0.5 autonomic ganglion
As a result of an autonomic ganglion located _____ the _____ is alble to produce mass activation.
A. close to the effector, parasympathetic
B. close to the effector, sympathetic division
C. in a lateral chain or plexus,
D. in a lateral chain or plexus, sympathetic
Score: 17. Value Feedback 0%
100% 0/0.5 Resting membrane potential
Once an action potential is generated, another cannot be generated until the ion gates return to the following configuration:
A. Na+ activation gate closed, Na+ inactivation 100%
gate open, K+ gate closed.
B. Na+ activation gate closed, Na+ inactivation 0%
gate closed, K+ gate closed.
C. Na activation gate open, Na inactivation 0%
gate open, K gate closed.
D. Na+ activation gate closed, Na+ inactivation 0% Feedback Student Response
gate closed, K+ gate open.
18. Value Feedback Value
0% Feedback 0/0.5 cranial bone ossification
Cranial bones start out as a:
A. hyaline cartilage plate
B. fibrous connective tissue membrane
C. membrane of areolar and dense irr...
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- Fall '12