Read the following paragraph from the section "sleep cleans the slate."
another possibility is that sleep may clean out toxic proteins that are bad for the brain. during sleep, the space between brain cells increases. this allows harmful waste to be flushed out. in 2013, researchers published a study showing that the brain uses sleep to get rid of toxic proteins. this waste removal system could be one of the major reasons why we sleep. by removing these toxic proteins from the brain, sleep may keep people from getting brain diseases.
how does this paragraph contribute to the article's main idea?
a: it proves that toxic proteins are more present in the brain at night.
b: it explains exactly how harmful waste is flushed from the body.
c: it provides one possible answer to the question of why people sleep.
d: it describes the reasons why rem sleep is more important than nrem sleep.
C: It provides one possible answer to the question of why people sleep.
A type of neuron that sends information away from the central nervous system to muscles or glands - Efferent neuron. The main characteristic for this type of neuron is that its axon conducts motor impulses outwards right from the brain (possibly spinal) cord.
A type of neuron that sends information from the sensory receptors toward the central nervous system is afferent neuron. This type of neuron is also known as sensory neurons. Its function is to convert a particular stimulus, through the receptors, in other words - to process the sensory transduction.
Long fibers that carry signals away from the cell body are called axon. The main function of axon is to conduct electrical impulses outwards from the neuron's cell body. Keep in mind that each nerve cell has one axon, and its dimensions can be over a foot long. As a result of transmitting signals from axon nerve, nerve cells communicate with each other.
The fatty material surrounding some axons is called myelin sheath. Myelin sheath plays one of the most important parts in functioning of the nervous system. It is a white fatty layer that is placed around the axon of some nerve cells and its function is to form an electrically insulating layer.
Short, highly branched fibers that carry signals toward the cell body are called dendrites. They are projections of a neuron, to be more exact they are extensions of the cytoplasm of a neuron. They are needed to propagate the electrochemical stimulation which the cell body received from some neural cells.
Gaps in the myelin sheath are called Node of Ranvier. They are simply known as myelin-sheath gaps, and they are spaces between the myelin coating on the neuron's axon. What about their function: they serve to support the rapid conduction of nerve impulses.
The space between two cells is called synaptic cleft. Sometimes it is called synaptic gap because it is actually a minute gap between presynaptic cell and postsynaptic cell that takes place during a chemical synapse. When a synapse is formed, nerve impulse is transmitted.
A type of neuron that sends information between sensory and motor neurons is called interneuron. Interneuron is responsible for communication between sensory or motor neurons and the CNS. The center of their functioning is placed in reflexes (neuronal oscillations).
The reversal of the electrical potential in the plasma membrane of a neuron is called action potential. It is a process of a short-term change that occurs in the electrical potential on the surface of a cell, as a response to stimulation. Eventually it leads to the transmission of a nerve impulse that moves across the cell membrane.
A type of chemical released from the tip of an axon into the synaptic cleft when a nerve impulse arrives is neurotransmitter. It is also known as chemical messengers, that are responsible for enabling neurotransmission. Their main function is to transfer signals across a chemical synapse from one nerve cell to another one.
Neurotransmitters are emitted from pre-synaptic neurons onto the dendrites of post-synaptic neurons during an action potential.
According to my research on studies conducted by various medical professions, I can say that based on the information provided within the question this scientist is most likely looking at Connective Tissues. These are tissues in which material secreted by the cells is fills up the spaces between the cells, thus connecting or binding otherwise separate tissues or organs. Which is what the scientist seems to be describing.
I hope this answered your question. If you have any more questions feel free to ask away at
It is called endothilum. Hoped this helped you
Neurons are the cells that is involved in sending and receiving signals.
The nervous system consists of neurons which are involved in transmitting the information to other nerve cells, gland cells and muscle.
Neurons consists of the following:
1. Cell body: It contains the nucleus and cytoplasm.
2. Axons: It extends from cell body and contains smaller branches.
3. Dendrites: It extends from the cell body and takes message or the signal from other neurons.
4. Synapsis: Point of communication between two neurons.
5. Synaptic cleft: It is the space between two cells.
6. Efferent neuron: The neurons which sends the information away from the central nervous system to glands.
7. Myelin sheath: It is the fatty materials that surrounds some axons.
8. Neurotransmitter: It is the type of chemical that is released from the tip of axons to the synaptic cleft whenever the nerve impulses arrives.
9. Afferent neuron: This type of neurons sends the information from the sensory receptors to the central nervous system.
10. Nodes of Ranvier: It is the space between the myelin sheath.
11. Action potential: It is the reversal of electrical potential present in the plasma membrane of the neuron.
12. Interneuron: This is the type of neuron that sends the information between the sensory neurons and the motor neurons.
1. Learn more about heart
2. Learn more about blood
3. Learn more about bloodstream
Grade: College Biology
Chapter: The nervous system
Neurons, nervous system, nerve cells, gland cells , muscle, cell body, Axons, dendrites, synapsis, synaptic cleft, efferent neuron, myelin sheath, neurotransmitter, afferent neuron, nodes of Ranvier, action potential, interneuron.
Chloroplasts are always located in the cytoplasm of the cell.
Sleep might be an important tool to keep people healthy. is correct
the space is called the endothelium. hope this helps!