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Questions and Answers
What is the primary function of afferent neurons in the nervous system?
What is the primary function of afferent neurons in the nervous system?
- To transmit signals from the CNS to skeletal muscles
- To innervate smooth muscle, cardiac muscle, and glands
- To carry signals from sensory receptors to the CNS (correct)
- To generate action potentials in the brain
What is the main function of the cerebrospinal fluid (CSF) in the CNS?
What is the main function of the cerebrospinal fluid (CSF) in the CNS?
- To regulate body temperature
- To provide mechanical protection to the brain and spinal cord
- To provide nutrients to the brain
- To absorb shock and prevent brain damage (correct)
Which type of neuron is affected in Parkinson's disease?
Which type of neuron is affected in Parkinson's disease?
- Glial cells in the thalamus
- Motor neurons in the substantia nigra (correct)
- Sensory neurons in the hippocampus
- Cerebellar neurons in the parietal lobe
What is the name of the layer of meninges that adheres to the surface of the brain?
What is the name of the layer of meninges that adheres to the surface of the brain?
What is the approximate weight of the brain in an adult human?
What is the approximate weight of the brain in an adult human?
What is the main consequence of spinal cord injury in the cervical region?
What is the main consequence of spinal cord injury in the cervical region?
Which part of the CNS is primarily responsible for generating action potentials?
Which part of the CNS is primarily responsible for generating action potentials?
What is the primary function of the autonomic nervous system?
What is the primary function of the autonomic nervous system?
What is the consequence of a spinal cord injury at the C1-C2 level?
What is the consequence of a spinal cord injury at the C1-C2 level?
Which type of neuron is responsible for transmitting signals from the CNS to skeletal muscles?
Which type of neuron is responsible for transmitting signals from the CNS to skeletal muscles?
What is the primary function of the blood-brain barrier?
What is the primary function of the blood-brain barrier?
Which disease is characterized by the selective loss of neurons in the substantia nigra?
Which disease is characterized by the selective loss of neurons in the substantia nigra?