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To which locations on the axon do impulses jump?
Impulses jump between the nodes of Ranvier on the axon.
Do epithelial tissue conduct impulses?
No, epithelial tissue does not conduct impulses. Epithelial tissue functions primarily in protection, secretion, absorption, and sensation. Nerve cells, or neurons, are responsible for conducting impulses in the body.
What mechanism does curare acts by?
Curare acts by blocking the transmission of nerve impulses at the neuromuscular junction, leading to muscle paralysis. It does this by binding to and blocking nicotinic acetylcholine receptors on the post-synaptic membrane, preventing the action potential from propagating across the muscle cell membrane.
What areas does sorting and editing of impulses take place?
Sorting and editing of impulses take place in the prefrontal cortex, which is responsible for executive functions such as decision making, problem solving, and controlling impulses. Additionally, the amygdala, which is involved in emotional processing, can also play a role in filtering and modulating impulses.
What are nerve cells specialized to receive and conduct electrical impulses?
Nerve cells, or neurons, are specialized to receive and transmit electrical impulses throughout the body. They have structures called dendrites that receive signals from other neurons, and an axon that transmits signals to other cells. Neurons have a membrane potential that allows them to generate and transmit electrical impulses known as action potentials.
What is the defense mechanism that blocks unacceptable impulses from becoming into awareness?
Repression
Which spinal cord tracts carry impulses for conscious sensations?
Lateral Spinothalamic
The minds defenses against its own unconscious wishes and impulses?
The mind uses defense mechanisms such as repression, denial, and projection to protect itself from experiencing anxiety or distress caused by unconscious desires or impulses. These defense mechanisms help to keep unwanted thoughts or feelings out of conscious awareness.
Which of these terms refers to the unconscious exclusion of painful impulses desires or fears from the conscious mind?
Repression
What form sensory impulses?
Sensory impulses are typically in the form of electrical signals that travel along nerve fibers from sensory receptors to the brain or spinal cord. These impulses carry information about sensations such as touch, temperature, pain, and pressure. The brain then processes these impulses to generate a conscious perception of the sensory input.
What is an example of the defense mechanism displacement?
Displacement is a defense mechanism where an individual redirects their emotions or impulses from a threatening target to a safer one. For example, if a person is frustrated by their boss at work but cannot express that anger directly, they might come home and take it out on a family member or a pet instead. This allows them to vent their feelings without facing the potential consequences of confronting the original source of their frustration.
Which part of the brain sends impulses to the automatic nervous system during life threatening emergencies?
The brain's hypothalamus is known to have evolved in humans to enable them to cope with sudden life-threatening emergencies.
Why is it important that the impulses in a reflex arc do not go to the conscious brain?
It is important for reflex arcs to bypass the conscious brain to allow for rapid and automatic response to stimuli. By sending signals directly to the spinal cord, the body can react quickly without the delay of conscious processing. This can help protect the body from potential harm.
What makes skeletal muscles move?
The nervous system produces electrical impulses which make muscles move through a sliding filament mechanism.
Which part of brain sends impulses to the autonomic nervous system during life threatening emergencies?
The brain's hypothalamus is known to have evolved in humans to enable them to cope with sudden life-threatening emergencies.
What is the function of the reticular activating system?
Part of the mid-brain, it sends impulses to the cerebral cortex to keep it conscious and alert. It is also important for sleep and arousal.
How does deadpool know he's in a comic book?
Deadpool's brain regenerates causing random impulses, which also allows him to posses a profound cosmic awareness that allows him to break the fourth wall.
