BSC 2086 EXAM 1 COMPLETE
QUESTIONS WITH 100% VERIFIED
ANSWERS
\.Accesories of the Afferent Division of the Nervous system - ANSWERS✔-1. Receptors - detects
stimuli
2. Sensory neurons - relays sensory information towards the CNS
*receives input from dendrites, uses axon to send it to CNS*
3. Sensory pathways - nerves, nuclei, and tracts that deliver sensory information to the CNS
\.Accesories of the Efferent Division of the Nervous system - ANSWERS✔-1. Nuclei - contain cell
bodies of motor neurons
2. Motor neurons - send commands to effectors through motor tracts (axons in the CNS) or
nerves (axons in the PNS)
\.Sensory Receptors - ANSWERS✔-1. Specialized cells that monitor specific conditions
(In the body or external environment)
\.By what means does a receptor pass information to the CNS? - ANSWERS✔-In the form of
action potentials along the axon of a sensory neuron
\.Sensory Pathways deliver somatic and visceral sensory information to their final destinations
inside the CNS using: - ANSWERS✔-1. Nerves - bundle of axons located in the PNS
,2. Nuclei - cluster of cell bodies located in the CNS
3. Tracts - bundle of axons located in the CNS
\.Somatic Motor Portion of the Efferent Division controls: - ANSWERS✔-peripheral effectors
\.Somatic Motor commands Travel from motor centers in the brain along somatic motor
pathways of: - ANSWERS✔-1. Motor nuclei
2. Tracts
3. Nerves
\.General Senses describe our sensitivity to: - ANSWERS✔-1. Temperature
2. Pain
3. Touch
4. Pressure
5. Vibration
6. Proprioception
- *monitors the position and
,movements of skeletal muscles and joints*
\.Sensation - ANSWERS✔-the arriving information from these senses
\.Perception - ANSWERS✔-Conscious awareness of a sensation
\.Special senses sensor receptors are all located where? - ANSWERS✔-In the head
\.Special senses sensory receptors - ANSWERS✔-1. Olfaction (smell)
2. Vision (sight)
3. Gustation (taste)
4. Equilibrium (balance)
5. Hearing
\.characteristics of special sensory receptors - ANSWERS✔-1. located in sense organs such as
the eye or ear
2. protected by surrounding tissues
\.Receptor specificity - ANSWERS✔-1. Each receptor has a characteristic sensitivity
-Ex. Your hands do not smell nor taste, your eyes do not hear, etc.
, \.Receptive field - ANSWERS✔-1. Area is monitored by a single receptor cell
2. The larger the receptive field, the more difficult it is to localize a stimulus
\.The Interpretation of Sensory Information:
Arriving stimulus reaches cortical neurons via ______ - ANSWERS✔-labeled line
- link between the receptor and cortical neuron
\.Each labeled line consists of axons carrying info about _____ - ANSWERS✔-one type of
stimulus (modality)
1. Physical force (such as pressure)
2. Dissolved chemical
3. Sound
4. Light
\.How do specialized receptor cells (taste, hearing, equilibrium and vision) communicate? -
ANSWERS✔-with sensory neurons across chemical synapses
\.Adaption - ANSWERS✔-Reduction in sensitivity of a constant stimulus
1. Your nervous system quickly adapts to stimuli that are painless and constant
-Ex. New smells, pressure (wearing jewelry)
QUESTIONS WITH 100% VERIFIED
ANSWERS
\.Accesories of the Afferent Division of the Nervous system - ANSWERS✔-1. Receptors - detects
stimuli
2. Sensory neurons - relays sensory information towards the CNS
*receives input from dendrites, uses axon to send it to CNS*
3. Sensory pathways - nerves, nuclei, and tracts that deliver sensory information to the CNS
\.Accesories of the Efferent Division of the Nervous system - ANSWERS✔-1. Nuclei - contain cell
bodies of motor neurons
2. Motor neurons - send commands to effectors through motor tracts (axons in the CNS) or
nerves (axons in the PNS)
\.Sensory Receptors - ANSWERS✔-1. Specialized cells that monitor specific conditions
(In the body or external environment)
\.By what means does a receptor pass information to the CNS? - ANSWERS✔-In the form of
action potentials along the axon of a sensory neuron
\.Sensory Pathways deliver somatic and visceral sensory information to their final destinations
inside the CNS using: - ANSWERS✔-1. Nerves - bundle of axons located in the PNS
,2. Nuclei - cluster of cell bodies located in the CNS
3. Tracts - bundle of axons located in the CNS
\.Somatic Motor Portion of the Efferent Division controls: - ANSWERS✔-peripheral effectors
\.Somatic Motor commands Travel from motor centers in the brain along somatic motor
pathways of: - ANSWERS✔-1. Motor nuclei
2. Tracts
3. Nerves
\.General Senses describe our sensitivity to: - ANSWERS✔-1. Temperature
2. Pain
3. Touch
4. Pressure
5. Vibration
6. Proprioception
- *monitors the position and
,movements of skeletal muscles and joints*
\.Sensation - ANSWERS✔-the arriving information from these senses
\.Perception - ANSWERS✔-Conscious awareness of a sensation
\.Special senses sensor receptors are all located where? - ANSWERS✔-In the head
\.Special senses sensory receptors - ANSWERS✔-1. Olfaction (smell)
2. Vision (sight)
3. Gustation (taste)
4. Equilibrium (balance)
5. Hearing
\.characteristics of special sensory receptors - ANSWERS✔-1. located in sense organs such as
the eye or ear
2. protected by surrounding tissues
\.Receptor specificity - ANSWERS✔-1. Each receptor has a characteristic sensitivity
-Ex. Your hands do not smell nor taste, your eyes do not hear, etc.
, \.Receptive field - ANSWERS✔-1. Area is monitored by a single receptor cell
2. The larger the receptive field, the more difficult it is to localize a stimulus
\.The Interpretation of Sensory Information:
Arriving stimulus reaches cortical neurons via ______ - ANSWERS✔-labeled line
- link between the receptor and cortical neuron
\.Each labeled line consists of axons carrying info about _____ - ANSWERS✔-one type of
stimulus (modality)
1. Physical force (such as pressure)
2. Dissolved chemical
3. Sound
4. Light
\.How do specialized receptor cells (taste, hearing, equilibrium and vision) communicate? -
ANSWERS✔-with sensory neurons across chemical synapses
\.Adaption - ANSWERS✔-Reduction in sensitivity of a constant stimulus
1. Your nervous system quickly adapts to stimuli that are painless and constant
-Ex. New smells, pressure (wearing jewelry)
