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Nervous System Exam
| Question | Answer |
|---|---|
| Nerve cells are called: neurons or pathons | neurons |
| The study of the nervous system is called: neurology or pathology | neurology |
| The nervous stystem is responsible for communicating with all other body systems to control and maintain______ | homeostasis |
| The nervous system communicates through messages called nerve: impulses or strains | impulses |
| Which function of the nervous system involves detecting changes (stimuli) by receptors?: integration, motor, or sensory | sensory |
| Which function of the nervous system analyzes sensory information and makes decisions?: integration, motor, or sensroy | integration |
| Which function of the nervous system initiates a response by activating effectors?: integration, motor, or sensory | motor |
| Muscles, organs, and glands that respond to nerve impulses are called: effectors or affectors | effectors |
| Which division of the nervous system is the control center and includes the brain and spinal cord?: CNS or PNS | CNS |
| Which division of the nervous system is made up of cranial and spinal cord nerves to carry message to and from the brain & spinal cord and the other body organs?: CNS or PNS | PNS |
| Which division of the PNS carries messages TO the CNS?: sensory or motor | sensory |
| Which division of the PNS carries messages FROM the CNS?: sensory or motor | motor |
| Is the sensory division afferent or efferent? | afferent |
| Which motor division sends messages to skeletal muscles?: somatic or autonomic | somatic |
| Which motor division sends messages to visceral organs (smooth&cardiac muscles)?: somatic or autonomic | autonomic |
| Is the somaic division voluntary or involuntary? | voluntary |
| which autonomic division is called fight or flight? | sympathetic |
| which autonomic division is called rest and digest | parasympathetic |
| which autonomic division speeds up the heart rate? sympathetic or parasympathetic | sympathetic |
| nervous cells that send and receive messages are called? neurons or pathons | neurons |
| support cells that support and protect nerve cells are collectively called neuroglial or microglial cells? | neuroglial |
| which support calls are the most abundant?: astrocytes or oligodendrocrystes | astrocytes |
| which support cells engulf foreign substances?: oligodendrocyetes or microglial | microglial |
| which support cells line the cavities and have cilia move CSF?: ependymal or astrocytes | ependymal |
| which support cells make myelin?: oligodendrocytes or astrocytes | oligodendrocytes |
| which part of the neuron contains the nucleus and organelles?: cell body;soma or Schwann cells | cell body; soma |
| which part of the neuron receives messages: dendrites or axon | dendrites |
| which part of the neuron sends messages: dendrites or axon | axon |
| which part of the neuron can be myelinated: dendrites or axon | axon |
| what is the name of the gaps in the myelin? node of Ranvier or node of neurons | node of ranvier |
| what does an axon in the PNS have that the CNS axons dont? neurotransmitter or neurilemma | neurilemma |
| a resting cell has more of which ions on the outside of the cell?: sodium or potassium | sodium |
| when a cell is sending messages, which protein channel gates open? sodium or potassium | sodium |
| when a cell is finished sending a message, which protein channel gates open? sodium or potassium | potassium |
| as the ions move, the charge on the cell membrane changes, this is called what? nerve impulse or neurilemma | nerve impulse |
| what allows the nerve impulse to travel across the gap between two cells? neurilemma or neurotransmitter | neurotransmitter |
| what is the sending neuron at a synapse called? presynaptic or postsynaptic | presynaptic |
| what is the receiving neuron at a synapse called? presynaptic or postsynpatic | postsynaptic |
| what are some things that can slow down nerve impulses? | small fibers, unmyelinated fibers, cold,& pressure |
| what happens to the neurotransmitter once the message is received by the postsynaptic neuron? | the neurotransmtter are broken down by axons or reabsorbed by the presynaptic neuron |
| which autoimmune disease is associated with myelin being destroyed?: multiple sclerosis or scoliosis | multiple sclerosis |
| chemicals that make the postsynaptic neuron more likely to be stimulated are called?: excitatory or inhibitory | excitatory |
| chemicals that make the postsynaptic neuron less likely to be stimulated are called?: excitatory or inhibitory | inhibitory |
| Name some natural excitatory “feel good” neurotransmitters in the brain: | ACh, dopamine, epinephrine and norepinephrine |
| Name diseases associated with imbalances of neurotransmitters: | depression, anxiety, eating disorders like anorexia and bulimia, OCD, ADHD, autism, bipolar, schizophrenia |
| How do drugs help people with the disorders/diseases listed in #45? | They block the enzymes that break down the neurotransmitters that are low or they block the reuptake of the low neurotransmitters. |
| What determines a person’s intelligence?: the number of neuron connections or somatic connections they can make | The number of neuron connections that they can make. |
| Which brain region is the large, superior, anterior part? cerebrum or cerebellum | cerebrum |
| Which brain region is the inferior, posterior part? cerebrum or cerebellum | cerebellum |
| Which brain region is the middle part of the brain? diencephalon or brain stem | diencephalon |
| Which brain region connects to the spinal cord at the base of the brain?: diencephalon or brain stem | brain stem |
| Which brain region is responsible for thinking, planning, speaking, conscience, understanding? cerebellum or cerebrum | cerebrum |
| which brain region contains the vital reflexes centers that are necessary for life?: brain stem or cerebrum | brain stem |
| The thalamus, epithalamus, and hypothalamus are parts of which brain region?: diencephalon or thalamus | diencephalon |
| Which diencephalon region relays messages to the proper region of the brain? diencephalon or thalamus | thalamus |
| Which brain regions contains the midbrain, pons, and medulla oblongata?: brain stem or thalamus | brain stem |
| Name some natural inhibitory neurotransmitters in the brain: | serotonin, endorphins, enkephalins |
Created by:
spklol