Physiology from the bank - Doctorswriting
Physiology from the bank
1. Regarding this diagram of a cardiac muscle action potential
A. f on the diagram is called phase 1 of the action potential
B. The phase designated by h is due to calcium influx only
C. The absolute refractory period coincides with phases f, g and h
D. The above action potential usually lasts < 50 ms
E. Is the same shape as pacemaker tissue action potential
2. With respect to nerve fibre types
A. The speed on conduction is inversely proportional to the diameter
of the fibre
B. C fibres are more susceptible to local anaesthetics than A fibres
C. A d fibres are concerned primarily with somatic motor function
D. Pain may be relayed by all fibre types
E. A a fibres are efferent only
3. Excitatory amino acids in the brain are
A. Glutamate and GABA
B. GABA and Glycine
C. Glutamate and Glycine
D. Glycine and Aspartate
E. Glutamate and Aspartate
4. The opioid d receptor is involved in
A. Analgesia
B. Respiratory depression
C. Miosis
D. Dependence
E. All of the above
5. In visceral smooth muscle
A. Calcium for contraction is released from sarcoplasmic reticulum
B. Membrane potential has a resting value of -90 mV
C. The excitation contraction coupling time is rapid ( ................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.