12 Questions
What is the primary function of afferent neurons in the nervous system?
To carry signals from sensory receptors to the CNS
What is the main function of the cerebrospinal fluid (CSF) in the CNS?
To absorb shock and prevent brain damage
Which type of neuron is affected in Parkinson's disease?
Motor neurons in the substantia nigra
What is the name of the layer of meninges that adheres to the surface of the brain?
Pia mater
What is the approximate weight of the brain in an adult human?
1.5 kg
What is the main consequence of spinal cord injury in the cervical region?
Quadriplegia
Which part of the CNS is primarily responsible for generating action potentials?
Neurons
What is the primary function of the autonomic nervous system?
Regulation of smooth muscle, cardiac muscle, and glands
What is the consequence of a spinal cord injury at the C1-C2 level?
Loss of involuntary functions, including breathing
Which type of neuron is responsible for transmitting signals from the CNS to skeletal muscles?
Somatic neuron
What is the primary function of the blood-brain barrier?
To restrict the passage of certain substances into the CNS
Which disease is characterized by the selective loss of neurons in the substantia nigra?
Parkinson's disease
Test your knowledge of the nervous system, including the central and peripheral nervous systems, afferent and efferent neurons, and more. Learn about the different components of the nervous system and how they function. Improve your understanding of the nervous system and its role in the body.
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