Neuron Quiz Spr20 Covid19

Wilhelm Wundt is considered the father of modern psychology because he established the first psychology laboratory in Leipzig, Germany in 1879. He is known for his work in experimental psychology and for founding the field of structuralism. Wundt's emphasis on scientific methods and his focus on studying the conscious experience of individuals greatly influenced the development of psychology as a separate scientific discipline. His contributions laid the foundation for the modern understanding of psychology and its methodologies.

The question asks to identify the nucleus by choosing the number that identifies it. Among the given options, number 2 is the correct answer as it represents the nucleus. The nucleus is the central part of a cell that contains genetic material, including DNA and RNA. It is responsible for controlling the cell's activities and is often referred to as the control center of the cell.

The electrical signal travels through the neuron from the dendrites, down the axon, and out of the axon terminals.

Dendrites are the part of the neuron that receive chemical messages from the neurotransmitters of other neurons. They are branched extensions of the cell body that have receptors for neurotransmitters, allowing them to receive signals and transmit them towards the cell body. Dendrites play a crucial role in the communication between neurons, as they receive and integrate incoming signals, determining whether or not the neuron will generate an electrical impulse.

The all or nothing phenomenon refers to the fact that once a neuron reaches its threshold potential, an action potential is generated and it will propagate along the neuron's axon to the end. If the threshold is not reached, no action potential will be generated and the impulse will not propagate. This phenomenon ensures that the transmission of signals in the nervous system is reliable and consistent.

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Dr. Philip Zimbardo is best known for the Stanford Prison Experiment. This infamous psychological study conducted in 1971 aimed to investigate the effects of perceived power on individuals' behavior. Zimbardo and his team simulated a prison environment, randomly assigning participants to be either guards or prisoners. The study quickly spiraled out of control as the guards began to exhibit abusive behavior towards the prisoners. The experiment was halted after only six days due to the severe psychological distress experienced by the participants. The Stanford Prison Experiment continues to be a significant case study in understanding the power of social roles and situational influences on human behavior.

The myelin sheath is a protective covering that surrounds the axon of a neuron. It is made up of fatty substances called myelin, which insulate the axon and increase the speed at which the neural message travels within the neuron. The myelin sheath acts as an electrical insulator, preventing the loss of the neural signal and allowing it to travel more efficiently along the axon. This helps to speed up the transmission of information within the nervous system. Schwann cells are responsible for producing the myelin sheath in the peripheral nervous system. Dendrites receive incoming signals, while axon terminals transmit signals to other neurons.

The Nodes of Ranvier are small gaps or constrictions between the myelin sheath on the axon. They are not actually beads, but are often described as little beads due to their appearance. The myelin sheath is a fatty substance that wraps around the axon, and the Nodes of Ranvier are the exposed areas between these fatty segments. The correct answer accurately describes the Nodes of Ranvier as little beads between rolls of fat on the axon.

Axons are the part of the neuron where action potentials take place. Action potentials are the electrical signals that transmit information within the neuron and to other neurons. Axons are long, slender extensions of the neuron that carry these action potentials away from the cell body towards other neurons or target cells. They are covered in a fatty substance called myelin, which helps to insulate and speed up the conduction of the electrical signals. Axons play a crucial role in the communication and transmission of information throughout the nervous system.

The answer "They were cooked in Greece" is a play on words. The question asks why the first French fries weren't cooked in France, and the answer suggests that they were actually cooked in Greece. This is a joke because "French fries" are called that because they are believed to have originated in France, even though they are now a popular food worldwide. The answer adds humor by suggesting that the fries were actually cooked in Greece, playing on the similarity in names between "French" and "fries".

The cell body is identified by the number 3.

The answer "Both" suggests that the individual possesses characteristics associated with both left-brained and right-brained thinking. This means that they likely have a balanced cognitive style, utilizing logical and analytical thinking as well as creative and intuitive thinking. They may be able to excel in tasks that require both rationality and imagination, allowing them to approach problems from multiple perspectives.

Psychoanalysis is best described as behavior that "bubbles out of the unconscious" because psychoanalysis is a psychological theory and therapy approach developed by Sigmund Freud. According to Freud, the unconscious mind is a reservoir of thoughts, desires, and memories that are hidden from conscious awareness but still influence behavior. Psychoanalysis aims to bring these unconscious thoughts and desires into consciousness, allowing individuals to gain insight into their behavior and make changes. Therefore, the behavior described in psychoanalysis is believed to originate from the unconscious mind and "bubble out" into conscious behavior.

The correct direction of the neural impulse within one neuron is from the dendrite to the axon terminal. The dendrites receive signals from other neurons and transmit them towards the cell body. The cell body then integrates these signals and generates an electrical impulse that travels down the axon. Finally, the axon terminal releases neurotransmitters to transmit the signal to the next neuron or target cell.

The myelin sheath surrounds and insulates the axon. This insulation helps to increase the speed at which electrical signals travel along the axon. Without the myelin sheath, the electrical signals would be slower and less efficient. The myelin sheath also helps to protect the axon from damage.

The axon terminal is the structure at the end of an axon that forms a synapse with another neuron or target cell. In the given options, number 6 is the only option that is located at the end of the axon. Therefore, number 6 identifies the axon terminal.

The axon of a neuron is responsible for transmitting information from the cell body to other neurons. It acts as a long, slender projection that carries electrical impulses, known as action potentials, away from the cell body and towards the synapses where it can communicate with other neurons. This transmission of information is crucial for the functioning of the nervous system and enables communication between different parts of the body.

Schwann cells are like a mother dressing her children for warmth in the neuron. Just as a mother protects and provides warmth for her children, Schwann cells in the nervous system wrap around and insulate nerve fibers, forming the myelin sheath. This myelin sheath acts as an electrical insulator, allowing for faster and more efficient transmission of nerve impulses. Like a mother's care, Schwann cells play a vital role in maintaining the health and functionality of neurons.

The neuron's nucleus controls the actions of the neuron. The nucleus contains the genetic material of the cell and regulates the synthesis of proteins that are necessary for the functioning and maintenance of the neuron. It plays a crucial role in controlling the overall activities and behavior of the neuron, including the transmission of signals and communication with other neurons.

The axon terminal is responsible for storing and releasing neurotransmitters into the synapse. Neurotransmitters are chemical messengers that transmit signals between neurons. The axon terminal is located at the end of the axon and forms the connection with the next neuron or target cell. When an action potential reaches the axon terminal, it triggers the release of neurotransmitters into the synapse, allowing for communication between neurons.

The action potential refers to the electro-impulse that moves through the entire neuron. It is an electrical signal that travels along the neuron, starting from the dendrites, passing through the cell body, and reaching the axon terminals. This electro-impulse is generated when the neuron receives a stimulus, causing a rapid change in the electrical potential across the cell membrane. This change in potential triggers the action potential, which then propagates along the neuron, allowing for the transmission of information.

The axon can be identified by choosing the number 5 because it is the only option that is a single, elongated structure, resembling a long fiber or tail. The other options (1, 2, 3, 4, and 6) do not exhibit the characteristic elongated structure of an axon.

The neuron's cell body, also known as the soma, produces food for the neuron. This is essential for the neuron's survival and function as it requires nutrients and energy to carry out its activities. The cell body contains various organelles, including mitochondria, which are responsible for generating energy in the form of ATP through cellular respiration. This energy is used for various cellular processes, such as protein synthesis and maintaining the neuron's overall health and functioning.