Neuro Quiz 1 Flashcards
What is the network of nerves located in the gastrointestinal tract?
Enteric Plexus that helps regulate the digestive system and involve both sensory and motor neurons
How many spinal nerves pairs do we have? AND name each category?
a. 31 Pairs
i. 8 Cervical
ii. 12 Thoracic
iii. 5 Lumbar
iv. 5 Sacral
v. 1 Coccygeal
What are the motor neurons that carry neural impulses away from the central nervous system and towards muscles to cause movement?
Efferent Neurons
What is the name of the sensory neurons that carry impulses from sensory stimuli towards the central nervous system?
Afferent Neurons
Name the structural classes of Neurons.
- Multipolar Neurons – Most neurons in the brain and spinal cord
- Bipolar Neurons – Found in the retina of the eye, inner ear, and olfactory areas of the brain
- Unipolar Neurons – Function as sensory receptors that detect touch, pain, pressure, or thermal stimuli
What supports, nourish, protect neuron and is critical for homeostasis?
Neuroglia
What cell produces myelin around the PNS neurons?
Schwann Cells
What cells produces myelin around the CNS neuron?
Oligodendrocytes
What cell produces CSF?
Ependymal Cells
What is a bundle of axons in the PNS called?
Nerve
What is a bundle of axons in the CNS called?
Tract
What nervous system include cranial nerves, spinal nerves and sensory nerves
Peripheral Nervous System
What nervous system controls thoughts, emotions and memories?
Central Nervous System
Named subcategories of Peripheral Nervous System?
- Somatic
- Autonomic
- Enteric
What nervous system conveys information from sensory receptors of head, body wall, and limbs and form the receptors for special senses (vision, hearing, taste, smell) to Central Nervous System AND conduct motor impulses from Central Nervous System to skeletal muscles?
Somatic Nervous System
What nervous system convey info from sensory receptors in visceral organs (stomach, lungs) to Central Nervous System AND conduct motor impulses from Central Nervous System to smooth muscles, cardiac muscles, glands?
Autonomic Nervous System
What nervous system is call “Brain of the Gut”, monitor chemical changes in the GI tract, stretching walls, regulate acid secretion and, endocrine cell secretions? What nervous system is call “Brain of the Gut”, monitor chemical changes in the GI tract, stretching walls, regulate acid secretion and, endocrine cell secretions?
Enteric Nervous System
What are the meningeal layers?
- Dura Mater
- Arachnoid Mater
- Pia Mater
What is the most outer meningeal layer?
Dura Mater
What is the middle layer and resembles a spider web?
Arachnoid Mater
What is the inner layer, thin and delicate and adheres to surface of the spinal cord and brain?
Pia Mater
What is the name of the space Cerebral Spinal Fluid travels?
Subarachnoid Space