The number of processes attached to the vertebral arch is
A. three.
B. four.
C. five.
D. six.
E. seven.
Answer: E
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Which cranial bone is called the "keystone" of the cranial floor because it articulates with every other cranial bone?
a) Occipital b) Frontal c) Ethmoid d) Nasal e) Sphenoid
Binding of an excitatory neurotransmitter to a postsynaptic neuron causes
a. voltage-gated Na+ channels open b. voltage-gated K+ channels open c. chemically-gated Na+ channels open d. voltage-gated Cl- channels open e. chemically-gated Cl- channels open
The conversion of fibrinogen to fibrin is catalyzed by
A) fibrinogen-converting enzyme. B) plasmin. C) factor VIII. D) thrombin. E) prothrombin activator.
Early signs and symptoms of increased intracranial pressure include:
A) headache and vomiting. B) hypertension and bradycardia. C) widening of the pulse pressure. D) arm flexion and leg extension.