How do the cells of the nervous system transmit signals? Neither electrical or chemical signals Both electrical or chemical signals Electrical impulses Chemical transmitters Question 2 of 8Points: 10 What molecule moves across a synapse? Neurotransmitters Potassium Water Sodium Question 3 of 8Points: 10 What type of signals move from the central nervous system to the peripheral nervous system? Afferent signals Somatic signals Efferent signals Autonomic signals Question 4 of 8Points: 10 What is another name for signals that move from the central nervous system to the peripheral nervous system? Sensory signals Voluntary signals Motor signals Visceral signals Question 5 of 8Points: 10 Which division of the nervous system processes thought? CNS PNS Question 6 of 8Points: 10 Which division of the nervous system transmits the feeling of stomach pain? PNS CNS Question 7 of 8Points: 10 Which division of the nervous system signals muscles for movement? CNS PNS Question 8 of 8Points: 10 Which is NOT a structure of the central nervous system? The spinal cord A peripheral nerve A synapse The brain SAVE & CONTINUE LATER In the neuron above, which appropriately labels the axon(s)? A B A and B Neither A nor B Question 2 of 20Points: 10 In the neuron above, which appropriately labels the dendrite(s)? A B A and B Neither A nor B Question 3 of 20Points: 10 In the neuron above, which appropriately labels the soma? A B A and B Neither A nor B Question 4 of 20Points: 10 What role does the soma play in neural information transmission? Chemical signals transmitted between neurons bind to the soma. The soma plays no role in information transmission. Electrical signals are transmitted down the soma. Chemical signals are transmitted between neurons emanating from the soma. Question 5 of 20Points: 10 What type of neuron is the cell schematized above? Unipolar Bipolar Multipolar Anaxonic Question 6 of 20Points: 10 Which cells have a single dendrite extending from one side of the cell body and a single axon extending from the other side? Unipolar Bipolar Multipolar Anaxonic Question 7 of 20Points: 10 What is true of an anaxonic neuron? They have no easily identifiable axon. They have numerous dendrites, but only a few axons. They are heavily myelinated. They are only found in the peripheral nervous system as interneurons. Question 8 of 20Points: 10 Electrical impulses are caused by what mechanism in the neuron? Metal-associated filaments within the length of the axon. Movement of ions through voltage gated ion channels across the cell membrane. Electricity is only transmitted from initiation within a small region of the brain. Reactions between secretions of glial cells and neurons. Question 9 of 20Points: 10 What glial contribution accelerates electrical impulses in the neuron? Myelin sheaths Ependymal wrapping of vasculature. Glial secretion of neurotransmitters. Glial secretion of nutrients. Question 10 of 20Points: 10 Which cell type transmits signals from the CNS to PNS? Schwann cells Satellite cells Afferent neurons Efferent neurons Question 11 of 20Points: 10 Which cell type distributes sensory and motor information in the CNS? Interneurons Afferent neurons Anaxonic neurons Efferent neurons Question 12 of 20Points: 10 Identify the correct path of a reflex arc: Stimulus → Efferent neuron → CNS → Afferent neuron → Motor response Stimulus → Afferent neuron → CNS → Processing in the frontal cortex → CNS → Efferent neuron → Motor response Stimulus → Efferent neuron → CNS → Processing in the frontal cortex → CNS → Afferent neuron → Motor response Stimulus → Afferent neuron → CNS → Efferent neuron → Motor response Question 13 of 20Points: 10 Which cell type produces an electrical impulse? Afferent neurons Oligodendrocytes Satellite cells Schwann cells Question 14 of 20Points: 10 Which cell type provides myelination in the PNS? Oligodendrocytes Satellite cells Schwann cells Efferent neurons Question 15 of 20Points: 10 Which cell type is only found in the CNS? Afferent neurons Schwann cells Oligodendrocytes Satellite cells Question 16 of 20Points: 10 Which cell type is responsible for providing immune protection? Schwann cells Satellite cells Oligodendrocytes Microglia Question 17 of 20Points: 10 Which cell type also indirectly provides immune protection? Ependymal cells Interneurons Macrophages Astrocytes Question 18 of 20Points: 10 Which cells provide structure and nutritive support in the CNS and PNS? Astrocytes and oligodendrocytes Astrocytes and satellite cells Schwann cells and oligodendrocytes Ependymal cell and microglia Question 19 of 20Points: 10 What happens to neurotransmitters in the synaptic cleft? Some bind to receptors and some are reabsorbed. They are all reabsorbed by the transmitting cells. Neurotransmitters do not enter the synaptic cleft. They all bind to receptors. Question 20 of 20Points: 10 How are neural electrical impulses communicated over the synapse? There are short filaments that connect neurons over the synapse. Glial cells conduct electricity from one neuron to another. Neurotransmitters transmit electricity. Electrical impulses are not communicated over the synapse. What are gyri and sulci? Depressions and ridges of the brain folds. Regions of neural somas versus regions of myelinated axons. Anatomical terms for the brain and spinal cord. The names of the left and right hemispheres of the cerebrum. Question 2 of 31Points: 10 What separates the hemispheres of the cerebrum? The longitudinal fissure The sagittal fissure The forebrain The midbrain Question 3 of 31Points: 10 Which is NOT a major structure of the brain? Midbrain Cerebellum Frontbrain Hindbrain Question 4 of 31Points: 10 Identify the structures from the image. Location 1: The cerebrum The cerebellum The midbrain The hindbrain Question 5 of 31Points: 10 Location 2: The forebrain The midbrain The hindbrain The cerebrum Question 6 of 31Points: 10 Location 3: The cerebrum The cerebellum The midbrain The medulla oblongata Question 7 of 31Points: 10 Location 4: The cerebrum The cerebellum The midbrain The medulla oblongata Question 8 of 31Points: 10 Location 5: The brainstem The spinal cord The pons The medulla oblongata Question 9 of 31Points: 10 What is the most dorsal region of the entire brain (back of the head)? The cerebrum The cerebellum The hindbrain The brainstem Question 10 of 31Points: 10 What is the most ventral region of the entire brain (front of the head)? The cerebrum The forebrain The midbrain The brainstem Question 11 of 31Points: 10 Which of the following meninges are best described by the following? Adheres to the brain. Dura mater Arachnoid mater Pia mater Subarachnoid space Question 12 of 31Points: 10 Is a spongy web-like structure. Dura mater Arachnoid mater Pia mater Subarachnoid space Question 13 of 31Points: 10 Strong connective tissue close to the skull. Dura mater Arachnoid mater Pia mater Subarachnoid space Question 14 of 31Points: 10 Thinnest of the meninges. Dura mater Arachnoid mater Pia mater Subarachnoid space Question 15 of 31Points: 10 Contains cerebrospinal fluid. Dura mater Arachnoid mater Pia mater Subarachnoid space Question 16 of 31Points: 10 What is the main function of the meninges? Organizing the gray matter. Holding cerebrospinal fluid close to the CNS. Preventing the skull from touching the brain. Protecting the central nervous system. Question 17 of 31Points: 10 Which of the following protects the brain from trauma? Meninges Cerebrospinal fluid The skull All of the above Question 18 of 31Points: 10 Which is NOT a function of the cerebrospinal fluid? Provides immune defense to the CNS. Provides nourishment to the CNS. Provides mechanical cushioning to the CNS. Provides lubrication for movement cells in the brain. Question 19 of 31Points: 10 How can cerebrospinal fluid be collected to assess infection in the CNS? Lumbar puncture Biopsy of the spinal cord. Biopsy of the brain. Blood test Question 20 of 31Points: 10 Which of the following brain regions is NOT part of the brainstem? Medulla oblongata Pons Midbrain Forebrain Question 21 of 31Points: 10 Which of the following brain regions is responsible for movement and contains a somatosensory and motor cortex? The frontal lobe The temporal lobe The cerebellum The parietal lobe Question 22 of 31Points: 10 Which of the following brain regions is responsible for hearing and contains the auditory cortex? The frontal lobe The temporal lobe The cerebellum The parietal lobe Question 23 of 31Points: 10 Which of the following brain regions contain the thalamus and hypothalamus? The forebrain The midbrain The hindbrain The cerebellum Question 24 of 31Points: 10 Which of the following brain regions is responsible for cognitive thought? The cerebrum The cerebellum The forebrain The brainstem Question 25 of 31Points: 10 Which of the following brain regions is responsible for involuntary functions? The frontal lobe The parietal lobe The cerebellum The brainstem Question 26 of 31Points: 10 Which of the following brain is responsible for regions voluntary motor functions, social judgment and planning? The frontal lobe The temporal lobe The occipital lobe The parietal lobe Question 27 of 31Points: 10 Which of the following brain regions is responsible for vision and contains the visual cortex? The frontal lobe The temporal lobe The occipital lobe The parietal lobe Question 28 of 31Points: 10 Which of the following is NOT a vertebral section of the spinal cord? Cervical Lumbar Sacral Abdominal Question 29 of 31Points: 10 Within a segment of the spinal cord, which of the following are true among the available choices? Sensory information enters the spinal cord via the: Posterior horn Lateral horn Anterior horn Brain Question 30 of 31Points: 10 Motor information exits the spinal cord via the: Posterior horn Lateral horn Anterior horn Brain Question 31 of 31Points: 10 Autonomic information enters via the: Posterior horn, but only in the thoracic and lumbar sections. Posterior horn Lateral horn, but only in the thoracic and lumbar sections. Lateral horn What causes contralateral motor control? Decussation Dorsal ganglions Plexus Rami Question 2 of 21Points: 10 Which best defines cranial nerves? Spinal nerves that control functions in the head. Peripheral nerves that emerge from the brain. Cranial nerves are another word for nerves in the brain. Cervical nerves that control movement if the head. Question 3 of 21Points: 10 Match the following cranial nerve with its role. Oculomotor nerve: Movement of the eyes and dilation of pupils. Processing the sense of smell. Hearing and equilibrium. Moving the tongue. Question 4 of 21Points: 10 Vestibulococlear nerve: Movement of the eyes and dilation of pupils. Sense of smell. Hearing and equilibrium. Moving the tongue. Question 5 of 21Points: 10 Vagus nerve: Parasympathetic nerve for digestion and swallowing. Sense of smell. Smiling and movement of the facial muscles. Moving the tongue. Question 6 of 21Points: 10 Hypoglossal nerve: Parasympathetic nerve for digestion and swallowing. Hearing and equilibrium coclear refers to hearing. Smiling and movement of the facial muscles. Moving the tongue. Question 7 of 21Points: 10 Within the spinal cord, what is another name for the large bundles of nerves in columns? Funiculi Fasciculi Decussate Roots Question 8 of 21Points: 10 What is another name for the subdivision of columns called tracts? Funiculi Fasciculi Decussate Roots Question 9 of 21Points: 10 Information within the spinal cord travels up to and down from the brain along what structure? Column Root Plexus Autonomic nerves Question 10 of 21Points: 10 Information from the spinal cord travels out to and back from peripheral nerves along what structures? Column Root Plexus Autonomic nerves Question 11 of 21Points: 10 Which best describes a ganglion? A bulge of nerve bodies in the dorsal root. A branch of peripheral nerves. A network of bundled nerves outside of the spinal cord. A collection of nerves leaving a horn. Question 12 of 21Points: 10 Which best describes a ramus? A bulge of nerve bodies in the dorsal root. A branch of peripheral nerves. A network of bundled nerves outside of the spinal cord. A collection of nerves leaving a horn. Question 13 of 21Points: 10 Which best describes a plexus? A bulge of nerve bodies in the dorsal root. A branch of peripheral nerves. A network of bundled nerves outside of the spinal cord. A collection of nerves leaving a horn. Question 14 of 21Points: 10 Which best describes a root? a bulge of nerve bodies in the dorsal root. a branch of peripheral nerves. a network of bundled nerves outside of the spinal cord. a collection of nerves leaving a horn. Question 15 of 21Points: 10 Is breathing controlled by the somatic or autonomic nervous system? Somatic Autonomic Both Neither Question 16 of 21Points: 10 Is pupil dilation controlled by the somatic or autonomic nervous system? Somatic Autonomic Both Neither Question 17 of 21Points: 10 Is digestion controlled by the somatic or autonomic nervous system? Somatic Autonomic Both Neither Question 18 of 21Points: 10 Is shrugging your shoulders controlled by the somatic or autonomic nervous system? Somatic Autonomic Both Neither Question 19 of 21Points: 10 Which pathway of the autonomic nervous system is triggered by fear or anxiety? Somatic Sympathetic Parasympathetic Spinal cord reflex Question 20 of 21Points: 10 Which pathway of the autonomic nervous system is active during normal body functions? Somatic Sympathetic Parasympathetic Spinal cord reflex Question 21 of 21Points: 10 Which pathway of the autonomic nervous system causes blood vessel constriction? Somatic Sympathetic Parasympathetic Spinal cord reflex SAVE & CONTINUE LATER