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PDF Download FREE ANATOMY AND STUDY GAMES ABOUT A&P1 -
CHAPTER 15 EXAM QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -66 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation
Question 1: Ascending tracts in the spinal cord relay ___ info
Answer:
sensory
Question 2: Use Figure 15-2 The Corticospinal Pathway
Identify the structure labeled "1"
Answer:
primary motor cortex Question 3: Your uncle was just diagnosed with a heart attack. One of his major symptoms is left arm pain. You are not surprised because you are familiar with the phenomenon of ____ pain
Answer:
referred
Question 4: What is "prickling pain"?
Answer:
fast pain
Question 5: Use Figure 15-1 Spinothalamic Tracts
Identify the structure labeled "5"
Answer:
thalamus
Question 6: Sensory neurons that are always active are called ___ receptors
Answer:
tonic Question 7: The descending spinal tract that crosses to the opposite side of the body within the cord is the ____ tract
Answer:
anterior cortispinal Question 8: The conversion of a sensory input to a change in membrane potential in the receptor is known as
Answer:
transduction Question 9: The ____ tract provides subconscious regulation of balance and muscle tone and is part of the ___ pathway
Answer:
vestibulospinal, medial
Question 10: Sensory neurons that adapt quickly are called ___ receptors
Answer:
phasic
Question 11: Sensory info from all parts of the body is routed to
Answer:
the somatosensory cortex
Question 12: Describe thermoreceptors
Answer:
found within dermis, free nerve endings, "cold" are structurally indistinguishable from "warm" and more numerous for cold
Question 13: Use Figure 15-2 The Corticospinal Pathway
Identify the origin of the axon labeled "2"
Answer:
upper motor neuron
Question 14: Describe the functions of the cerebellum
Answer:
functions to maintain proper posture and equilibrium, receives input from the motor cortex and basal ganglia, compares intended movement to actual movement and if damage leads to uncoordinated and jerky movements
Question 15: Use Figure 15-2 The Corticospinal Pathway
What occurs in this neural pathway at label "3"?
Answer:
decussation Question 16: Why is it that one CANNOT identify the location of internal organs, although joints and bone location CAN be identified?
Answer:
the internal organs have no proprioceptors like joints, bones and muscles
Question 17: Bladder fullness is to ___ as blood pH is to ___
Answer:
baroreceptors, chemoreceptors
Question 18: List the special senses
Answer:
smell, taste, balance, hearing, vision, sensations provided by specialized receptor cells NOT pressure
Question 19: Use Figure 15-2 The Corticospinal Pathway
The axon labeled "2" synapses with which structure?
Answer:
#5, spinal cord
Question 20: The ___ is the area monitored by a single receptor cell
Answer:
receptor field Question 21: A reduction in sensitivity in the presence of a constant stimulus is referred to as
Answer:
adaptation
Question 22: Mechanoreceptors might detect what kinds of sensations?
Answer:
pressure, touch, vibration and muscle length Question 23: A fast-adapting tactile receptor that monitors movements across the body surface is a
Answer:
root hair plexus
Question 24: Use Figure 15-1 Spinothalamic Tracts
Identify the type of info that travels along the structure labeled "2"
Answer:
pressure and touch sensations Question 25: Damage to the pyramidal cells of the cerebral cortex would directly affect
Answer:
voluntary motor activity
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