HOSA: Knowledge Test:
Behavioral Health with
complete verified solutions
2025-2026
Phrenology - answer a popular theory that claimed bumps on the skull
could reveal our mental abilities or character traits
Biological psychology - answer the branch of psychology that links biology
and behavior
Neuron - answer a nerve cell
Sensory neurons - answer neurons that carry incoming information from
the sensory receptors to the brain or spinal cord
Motor neurons - answer neurons that carry outgoing information from the
brain and spinal cord to the muscles and glands
Interneurons - answer neurons within the brain and spinal cord that
communicate with each other and regulate sensory and motor inputs
Dendrite (receive) - answer the branches that extend from the nerve cell
body. These receive messages and conduct impulses towards the body
Axon (relay) - answer the extension of the neuron that has fibers on the
end that pass information to other neurons or to muscles
Myelin sheath - answer the layer of fatty tissue that encases the fibers of
neurons in segments and increases the transmission speed of impulses
, Action potential - answer a neural impulse, or, a brief electrical charge
that travels down an axon
Threshold - answer the level of stimulation required to trigger a neural
impulse. This comes from the level of excitatory signals minus inhibitory
signals
Synapse - answer the junction between the axon of the relaying neuron
and the dendrite of the receiving neuron. This is also known as the
synaptic gap or synaptic cleft
Neurotransmitter - answer a chemical messenger that crosses the
synaptic gap between neurons, binding to receptor sites on the dendrites
of the receiving neuron.
Endorphins - answer "morphine within," a natural opiatelike
neurotransmitter linked to pain control and pleasure
Acetylcholine - answer a neurotransmitter that enables muscle action,
learning, and memory. Lack of this causes Alzheimer's
Dopamine - answer a neurotransmitter that influences movement,
learning, attention and emotion. An excess causes schizophrenia and a
lack causes tremors and Parkinson's
Serotonin - answer affects mood, hunger, sleep, and arousal. A lack leads
to depression
Norepinephrine - answer helps control alertness and arousal. A lack can
depress
Gamma-butyric acid - answer an inhibitory neurotransmitter. A lack is
linked to seizures, tremors, and insomnia
Behavioral Health with
complete verified solutions
2025-2026
Phrenology - answer a popular theory that claimed bumps on the skull
could reveal our mental abilities or character traits
Biological psychology - answer the branch of psychology that links biology
and behavior
Neuron - answer a nerve cell
Sensory neurons - answer neurons that carry incoming information from
the sensory receptors to the brain or spinal cord
Motor neurons - answer neurons that carry outgoing information from the
brain and spinal cord to the muscles and glands
Interneurons - answer neurons within the brain and spinal cord that
communicate with each other and regulate sensory and motor inputs
Dendrite (receive) - answer the branches that extend from the nerve cell
body. These receive messages and conduct impulses towards the body
Axon (relay) - answer the extension of the neuron that has fibers on the
end that pass information to other neurons or to muscles
Myelin sheath - answer the layer of fatty tissue that encases the fibers of
neurons in segments and increases the transmission speed of impulses
, Action potential - answer a neural impulse, or, a brief electrical charge
that travels down an axon
Threshold - answer the level of stimulation required to trigger a neural
impulse. This comes from the level of excitatory signals minus inhibitory
signals
Synapse - answer the junction between the axon of the relaying neuron
and the dendrite of the receiving neuron. This is also known as the
synaptic gap or synaptic cleft
Neurotransmitter - answer a chemical messenger that crosses the
synaptic gap between neurons, binding to receptor sites on the dendrites
of the receiving neuron.
Endorphins - answer "morphine within," a natural opiatelike
neurotransmitter linked to pain control and pleasure
Acetylcholine - answer a neurotransmitter that enables muscle action,
learning, and memory. Lack of this causes Alzheimer's
Dopamine - answer a neurotransmitter that influences movement,
learning, attention and emotion. An excess causes schizophrenia and a
lack causes tremors and Parkinson's
Serotonin - answer affects mood, hunger, sleep, and arousal. A lack leads
to depression
Norepinephrine - answer helps control alertness and arousal. A lack can
depress
Gamma-butyric acid - answer an inhibitory neurotransmitter. A lack is
linked to seizures, tremors, and insomnia
