Nervous System Questions and Answers

O Oxygen O Nitrogen O Carbon Dioxide Carbon Monoxide O Plasma 84 What structure is responsible for the production of bile and the breakdown of fats O Pancreas O Spleen O Liver O Gallbladder 85 The body creates respiration through the action of hematopoiesis O True O False 86 The female urethra is longer than the male urethra O True O False

In neurons efferent is to sensory interneuron motor sensory motor interneuron sensory motor interneuron sensory as afferent is to

You should drink water tea coffee and soda or pop like Coca Cola daily to ensure proper hydration True False

lons are unequally distributed across the plasma membrane of all cells This ion distribution creates an electrical potential difference across the membrane What is the name given to this potential difference View Available Hint s Resting membrane potential RMP Threshold potential O Positive membrane potential O Action potential Submit Part B Sodium and potassium ions can diffuse across the plasma membranes of all cells because of the presence of what type of channel View Available Hint s Sodium potassium ATPases O Ligand gated channels O Voltage gated channels O Leak channels

QUESTION 2 Underinflated tires are wom Select the correct option and click NEXT At the center of the tread At both edges of the tire Diagonally across the tread surface In a saw tooth pattern

5 List the different steps of an action potential and the relative millivolt values corresponding to each phase Then draw a diagram to help your explanation

Select ALL of the following that are correct regarding the events that occur during a stretch reflex Stretch in a muscles activates the muscle spindle resulting in the sensory neuron sending impulses at higher frequency Sensory neurons synapse directly with alpha motor neurons that innervate the stretched muscle Alpha motor neurons are stimulated causing extrafusal muscles of the stretched muscle to relax Alpha motor neurons going to the antagonist muscles are inhibited

What is the best function description of proprioceptors Respond to chemicals Respond to stimuli arising within the body Respond to pain causing stimuli Respond to changes in temperature Respond to degree of stretch and contraction of the organs they occupy Respond to light O Respond to stimuli arising outside the body O Respond to touch pressure vibration stretch and itch

Select five of the eight following questions to answer in your own words in a separate Microsoft Word document Use the Written Assignment Guidelines document for further instructions including formatting Submit your document in either a docx or pdf format to the corresponding folder found under the Assignment tab on iCollege The due date is posted in your course syllabus 1 Explain how multiple sclerosis causes muscle weakness and loss of muscular control

vestibular cochlear cochlear vestibular O cochlear hypoglossal O vestibular glossopharyngeal Question 37 2 pts How would a member of the medical profession test a patient for damage to the vestibular branch of the vestibulocochlear nerve test hearing with a tuning fork examine disturbances with swallowing and speech O check muscle motion when teeth are clenched

Which of the following is incorrect regarding the slow cell action potential below LA 0 3 Threshold 4 O phase 4 is a depolarization due to Na entering the cell via funny Ilf channels O the resting membrane potential is about 60 mV Ophase 0 is due to an influx of Na ions via L type Ca2 channels Ophase 3 is due K ions leaving the cell via voltage gated potassium channels

You have made attempt Label the spinal cord appropriately so that we can get to know Elena s Anatomy better A Pia mater B Ventral root C Spinal nerve D Arachnoid mater E Dorsal root ganglion F Central canal G White matter H Dorsal root 1 Gray matter I J Spinal dura mater 3 07 11 01

Which phase of the cardiac muscle action potential involves the movement of calcium into the cell and out of the sarcoplasmic reticulum repolarization plateau quiescent period polarization

What is a unique role of globulin proteins in the blood that the other plasma proteins have little to no role with ATP production help with blood clotting maintain osmotic pressure

Which of the following structures contains the other four items listed Select one a postsynaptic membrane X b presynaptic terminal c synaptic cleft d neuromuscular junction e receptors on postsynaptic membrane

estion 4 Points 3 Estrogen from ovaries Induces oxytocin receptors on uterus Oxytocin Positive feedback mechanism Negative feedback mechanism from fetus and pituitary Which of the following mechanisms is represented in the above image Prostaglandin contraction mechanism Oxytocin release mechanism Stimulates uterus to contract Stimulates placenta to make Prostaglandins Stimulates more contractions of uterus Reset Res Questic Positive fee

Stop and think question 4 Which area of the body has the highest density of Lewis evGHLI mechanoreceptors Which area of the body has mechanoreceptors with the smallest receptor fields Explain your answer

Label eye structures on the schematics Suspensory ligaments Figure 5 3 Eyeball sagittal section

Pineal gland Thalamus Pons Midbrain Spinal cord Cerebellum Hypothalamus Medulla oblongata III

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An anion like X is found in greater concentration inside the cell than outside Which of the following statements best describes forces acting on the anion at the resting membrane potential 70 mV O The chemical force is directed into the cell and the electrical force is directed out of the cell O Both the chemical and electrical forces are directed out of the cell O The chemical force is directed out of the cell and the electrical force is directed into the cell Both the chemical and electrical forces are directed into the cell O There is insufficient information to answer this question

vesicle ACh Ca channel Motor neuron JUKUM Ca PRUKLE S

Temporal summation and spatial summation both function as a mechanism to get the Vm to threshold O True O False

Tetrtrodotoxin TTX is applied to a cell sample that is normally permeable to Na and K What will the membrane potential most likely be with this modification O 70 mV O 60 mV O 0 mV O 94 mV O 55 mV

Myofibrils Axon Axon terminal Sarcolemma Nucleus Motor neuron Muscle fiber

The resting membrane potential of a neuron will lie somewhere between the O equilibrium potential Na K O equilibrium potential Na Ca2 O threshold voltage Na K O threshold voltage Na Ca2 Olons do not influence resting membrane potential of the ions

Drug X causes 5 units of response Drug Y causes 10 units of response When administered together interaction a patient receives 30 units of response This is an example of a n O synergistic

What happens to internal heat production when a person exercises

Which of the following best describes the relative sensitivity of gustation compared to olfaction O Gustation is 10 000x more sensitive than olfaction in humans due to a significantly higher number of taste buds on the tongue O Gustation is 10 000x more sensitive than olfaction in humans O Olfaction is 10 000x more sensitive than gustation in humans O Olfaction is 10 000x more sensitive than gustation in humans due to a significantly higher number of receptors in olfactory epithelium Question 23 1 pt

Which of the following best describes the transmission of fast pain A Fast pain is relayed via B fibers which are large and myelinated Fast pain is relayed via A and C fibers which are of variable sizes and myelinated Fast pain is relayed via A fibers which are large and myelinated Fast pain is relayed via C fibers which are large and myelinated

Which of the following is true regarding a receptor potential O Multiple answers are correct O Receptor potentials develop from a stimulus and must synapse with a sensory neuron before relaying information to the CNS O Receptor potentials are graded potentials resulting from neurotransmitter binding 4 Receptor potentials develop from a stimulus and either directly contribute to an action potential or they are communicated over short distances to a separate sensory neuron O Receptor potentials are all graded potentials which may develop to an action potential inside the receptor

So in terms of temperature regulation what is the human body adapted for

Which of the following describes memory consolidation Refers to the relationship between learning and memory Refers to how the brain combines related ideas and concepts Refers to the acquisition of new information by the brain

12 Name the cranial nerve responsible for relaying sensory information regarding olfaction

Where do you think the main integrating center for water balance is located hint its in the same location as the body s thermostat

When nociceptors relay information to the brain what sensation do you feel

Question 13 Which of the following is not a type of information transmitted by a receptor O Modality of stimulus O Location of stimulus Duration of stimulus Sensitivity to stimulus W 1 pt

wer all parts to receive full credit y explain how regeneration of photopigments occurs in the retina Explain what happens when the photopigment is sed to light and how that photopigment gets recycled regenerated Explain the role of glutamate in vision

The major SENSORS involved in control of ventilation are called CHEMORECEPTORS If you look at the reactions listed above and the results of the experiment which substances do you think the chemoreceptors are most responsive to

Which of the following best describes fast pain Fast pain refers to dull or sore pain that is detected quickly and is typically considered acute temporary h Fast pain refers to sharp or stinging pain that is detected quickly and is typically considered acute temporary Fast pain refers to sharp or stinging pain that is detected quickly and is typically considered chronic long lasting O Fast pain refers to dull or sore pain that is detected quickly and is typically considered chronic long lasting Question 3

Where do you think the chemoreceptors might be located Why

Match the term in one column with the appropriate definition description explanation in the opposite column Somatic Nervous System Visceral autonomic Nervous System Peripheral Nervous System Efferent neuron Bipolar neuron Interneuron Choose Choose A neruon with many processes radiating from the cell body Tracts of the spinal cord containing motor information A neuron with two distinct processes extending from the soma The division responsible for monitoring and coordinating voluntary activities The division including all sensory receptors spinal and cranial nerves The thin avascular deep layer of the meninges A neuron found in the CNS responsible for making sense of incoming messages A neuron responsible for relaying information to coordinate muscle contraction and glandular secretions The most superficial meningeal layer a crossing of specific tracts of the spinal cord before descending down the spinal cord The middle meningeal layer The division responsible for monitoring and regulating involuntary activities Choose Choose V

Question 14 Which of the following best describes the all or nothing principle Oif membrane potential does not reach 55mV it is difficult to induce an action potential O reaching threshold will always produce an action potential but action potentials could be of varying strengths an action potential will always induce another action potential in a post synaptic neuron Oif a membrane potential of 55mV is reached at the trigger zone an action potential will occur

What type of information is carried by the cerebrospinal tract sensory O motor

Which of the following describes an IPSP O Excitatory Causes depolarization of a post synaptic cell O Excitatory Causes hyperpolarization of a post synaptic cell Inhibitory Causes depolarization of a post synaptic cell O Inhibitory Causes hyperpolarization of a post synaptic cell

Identify the 5 components of a reflex arc and explain their purpose in a reflex Additionally give an example of a reflex in the body by providing the stimulus with the corresponding effect Edit Format Table

4 Can you think of a specific motivational technique that would improve you in each of the four categories in Exhibit 8 3 Describe them and how they would apply to you

Part A Which is true of free nerve endings O They lie deepest in the dermis O They respond to stretch O They are classified as proprioceptors O They respond to pain and temperature

Helps the body maintain equilibrium if there are position changes due to gravity such as leaning standing or lying down Is responsible for dynamic equilibrium Amplifies the sound waves received by the tympanic membrane are in gan of Corti

Drag the labels onto the diagram to identify the types of proprioceptors muscle spindle and tendon organ Extrafusal muscle fiber Tendon organ a efferent motor fiber to extrafusal muscle fiber Intrafusal muscle fibers ndon Muscle spindle Anulospiral primary sensory endings Flower spray secondary sensory endings Sensory fiber Capsule y efferent motor fiber to muscle spindle H Pearson Reset Help