A synapse consists of:
a synaptic knob.
a synaptic cleft.
the plasma membrane of a postsynaptic neuron.
all of the above.
The Correct Answer is D
A. a synaptic knob: This is the presynaptic terminal that contains neurotransmitters.
B. a synaptic cleft: This is the microscopic gap between the two neurons.
C. the plasma membrane of a postsynaptic neuron: This contains the receptors necessary to receive the chemical signal.
D. all of the above: A functional synapse requires the "sender" (knob), the "space" (cleft), and the "receiver" (postsynaptic membrane).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. monosaccharides: These are the building blocks of carbohydrates, not fats.
B. disaccharides: These are complex sugars (carbohydrates) made of two monosaccharides.
C. amino acids: These are the building blocks of proteins.
D. fatty acids and glycerol: These are the correct chemical components that bond together to form triglycerides, the most common type of fat in the body.
Correct Answer is C
Explanation
A. medulla: The medulla oblongata controls autonomic functions like breathing and heart rate.
B. pons: The pons acts as a bridge for signals between different parts of the brain and helps regulate breathing.
C. cerebellum: The cerebellum is specifically responsible for coordinating muscle movement, posture, and maintaining balance.
D. hypothalamus: As noted previously, the hypothalamus focuses on homeostasis and hormone regulation, not physical balance.
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