8. Flow of information along the neuron is from the _______ toward the cell body and down the _______. 9. An action potential is an electrical message sent along the _______ of the neuron. The action potential causes the release of _______. 10. Do action potentials travel faster along unmyelinated axons or myelinated axons? 11. Define synapse. The end of an axon can synapse on another _______ or on a _______ cell. 12. Name the chemical that crosses the synaptic cleft. Are these chemicals always excitatory causing another action potential? 13. Name the type of bone that protects the brain. Name the bones that protect the spinal cord. 14. Name the three layers of the meninges? Meninges surround the _______ and _______ 15. Name the 4 major regions of the brain. 16. Which region of the brain is the "mind" ? _______. 17. What is a gyrus? What is a sulcus? 18. Motor functions are controlled by the _______ lobe of the brain. 19. The structure that connects the right and left cerebral hemisphere is called the _______ _______. 20. What are functions of the hypothalamus? 21. What is the function of the pineal gland? 22. What is the function of the limbic system? 23. Name the parts of the brainstem. Which reflexes are controlled by the medulla oblongata? 24. What is the function of the cerebellum? 25. Inside the brain are hollow spaces called ventricles. What are ventricles filled with? 26. What is the function of cerebrospinal fluid? 27. The spinal cord descends from the medulla oblongata through a hole in the skull. The name of that hole is the _______. 28. The spinal cord is divided up into regions know by the initials "C, T, L, and S". Give the name for each initial. 29. The spinal cord ends at L__. 30. Name the two parts of the autonomic nervous system? Are these voluntary or involuntary? 31. The Sympathetic System is also called the " _______ or _______ " division. Describe the effects of the sympathetic system. 32. The Parasympathetic System is also called the " _______ or _______ " division. Describe the effects of the parasympathetic system.
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Flow of information along the neuron is from the **dendrites** toward the **cell body** and down the **axon**. Show moreā¦
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Flow of information along the neuron is from the toward the cell body and down the . An action potential is an electrical message sent along the of the neuron. The action potential causes the release of . Do action potentials travel faster along unmyelinated axons or myelinated axons? Define synapse. The end of an axon can synapse on another or on a cell. Name the chemical that crosses the synaptic cleft. Are these chemicals always excitatory causing another action potential? Name the type of bone that protects the brain. Name the bones that protect the spinal cord. Name the three layers of the meninges? Meninges surround the and . Name the 4 major regions of the brain. Which region of the brain is the "mind" ? . What is a gyrus? What is a sulcus? Motor functions are controlled by the lobe of the brain. The structure that connects the right and left cerebral hemisphere is called the . What are functions of the hypothalamus? What is the function of the pineal gland? What is the function of the limbic system? Name the parts of the brainstem. Which reflexes are controlled by the medulla oblongata? What is the function of the cerebellum? Inside the brain are hollow spaces called ventricles. What are ventricles filled with? What is the function of cerebrospinal fluid? The spinal cord descends from the medulla oblongata through a hole in the skull. The name of that hole is the . The spinal cord is divided up into regions know by the initials "C,T, L, and S". Give the name for each initial. The spinal cord ends at L__. Name the two parts of the autonomic nervous system? Are these voluntary or involuntary? The Sympathetic System is also called the " or " division. Describe the effects of the sympathetic system. The Parasympathetic System is also called the " or " division. Describe the effects of the parasympathetic system.
Madhur L.
CNS ā Spinal Cord LAB ACTIVITY 9: Neuronal Pathways. Provide the word that best fits each blank. (Word Bank: Contralateral, Corticospinal, Indirect, Medulla oblongata, Primary Motor, Pyramidal, Receptor, Somatosensory, Thalamus, Ventral) Ascending neuronal pathways transmit input from receptors to higher brain centers. These pathways usually consist of three neurons. The first order neuron conducts impulses from the 1) āāāāāāāā to the central nervous system, where it synapses with the second order neuron. The second order neuron ascends to the 2) āāāāāāāā, where it synapses with the third order neuron. Third order neuron route impulses to the appropriate area of the 3) āāāāāāāā cortex. Depending on the pathway, sensory tracts ascend to the cerebral cortex can decussate in the spinal cord or at the level of the medulla oblongata. Tracts that deliver input to the cerebellum lack third order neurons and do not decussate. Descending neuronal pathways transmit motor output from the brain toward peripheral effectors. There are two different types of voluntary descending pathways. The direct pathway, also called the corticospinal pathway, involves only two neurons. The cell body of the upper motor neuron, also called a 4) āāāāāāāā cell, is located in the 5) āāāāāāāā cortex. The axon descends within the 6) āāāāāāāā white matter tract, and synapses with lower motor neuron in the 7) āāāāāāāā horn of the gray matter. The lower motor neuron extends to peripheral effectors that are under voluntary control, such as skeletal muscles. Axons in the direct motor pathway decussate at the level of the 8) āāāāāāāā, so the primary motor cortex of each cerebral hemisphere is responsible for fine motor control of the opposite, or 9) āāāāāāāā side of the body. All other motor pathways, called 10) āāāāāāāā pathways, consist of more than two neurons and involve input from motor nuclei within the brain. These pathways are responsible for control of posture and coarse movements of the limbs.
CNS - Spinal Cord LAB ACTIVITY 9: Neuronal Pathways. Provide the word that best fits each blank. (Word Bank: Contralateral, Corticospinal, Indirect, Medulla oblongata, Primary Motor, Pyramidal, Receptor, Somatosensory, Thalamus, Ventral) Ascending neuronal pathways transmit input from receptors to higher brain centers. These pathways usually consist of three neurons. The first order neuron conducts impulses from the 1) to the central nervous system, where it synapses with the second order neuron. The second order neuron ascends to the 2) , where it synapses with the third order neuron. Third order neuron route impulses to the appropriate area of the 3) cortex. Depending on the pathway, sensory tracts ascend to the cerebral cortex can decussate in the spinal cord or at the level of the medulla oblongata. Tracts that deliver input to the cerebellum lack third order neurons and do not decussate. Descending neuronal pathways transmit motor output from the brain toward peripheral effectors. There are two different types of voluntary descending pathways. The direct pathway, also called the corticospinal pathway, involves only two neurons. The cell body of the upper motor neuron, also called a 4) cell, is located in the 5) cortex. The axon descends within the 6) white matter tract, and synapses with lower motor neuron in the 7) horn of the gray matter. The lower motor neuron extends to peripheral effectors that are under voluntary control, such as skeletal muscles. Axons in the direct motor pathway decussate at the level of the 8) , so the primary motor cortex of each cerebral hemisphere is responsible for fine motor control of the opposite, or 9) side of the body. All other motor pathways, called 10) pathways, consist of more than two neurons and involve input from motor nuclei within the brain. These pathways are responsible for control of posture and coarse movements of the limbs.
Sri K.
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