How does a dendrite conducts nerve impulses ?
Away from the cell body
Towards the cell body
Both towards and away from the cell body
Around bypassing the cell body
Which of the following are types of neurons?
Sensory
Motor
Interneurons
All of the above
The enzyme that breaks down a neurotransmitter is the :
acetylcholine
serotonin
dopamine
acetylcholinesterase
Which body system coordinates activities of body parts by releasing hormones into the blood?
Nervous system
Digestive system
Circulatory system
Endocrine system
Which of the following are the parts of neurons?
Brain, spinal cord, and vertebral column
Dendrite, axon, and cell body
Sensory and motor
Cortex, medulla and sheath
Humans have how many pairs of cranial nerves ?
4
12
16
21
How is transmission across a synapse achieved ?
Ionic bonding
Diffusion of neurotransmitter across the cleft
Physical contact of axon to dendrite allowing the nerve impulse to continue onward
Diffusion of sodium ions across the cleft
An interneuron has :
long dendrites and a short axon.
long dendrites and a long axon.
short dendrites and a long axon.
short dendrites and a long or short axon.
Where does the sensory neuron of the peripheral nervous system take nerve impulses from sensory receptors to?
Motor neurons
Autonomic nervous system
Central nervous system
The PNS nerves are part of either the somatic system or the:
motor system
central nervous system
parasympathetic system
autonomic system
