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BIOL 235 MIDTERM EXAM AND PRACTICE EXAM 180
QUESTIONS AND CORRECT DETAILED ANSWERS||
VERIFIED EXAM!!|| (VERIFIED ANSWERS) |ALREADY
GRADED A+|| NEWEST EXAM!!!
______________ is the conscious or subconscious
awareness of changes in the external or internal
environement - ANSWER-sensation
These sensory receptors are bare dendrites that lack any
structural specialization.
Ex: receptors for pain, temp, itch, tickle - ANSWER-Free
nerve endings
What kind of receptors are associated with visceral
sensation such as pressure and vibration? - ANSWER-
encapsulated nerve ending
The sensation of hearing, visions, smell, taste, touch,
pressure, vibration, temperature and pain are all conveyed
by ______________ - ANSWER-exteroceptors
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Where are interoceptors found? - ANSWER-in blood
vessels, visceral organs, muscles, and the nervous
system
What are the proprioceptors in skeletal muscles that are
responsible for monitoring changes in the length of the
muscles in stretch reflexes? - ANSWER-muscle spindles
These are located at the junction of a tendon and a
muscle - ANSWER-tendon organs
These neurons conduct impulses from somatic receptors
into the brain or spinal cord - ANSWER-First-order
neruons
These neurons conduct impulses from the brain stem and
spinal cord to the thalamus - ANSWER-second-order
neurons
These neurons conduct impulses from the thalamus to the
primary somatosensory area of the cortex on the same
side - ANSWER-third-order neurons
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Nerve impulses for touch, pressure, vibration, and
conscious proprioception from the limbs, trunk, neck,, and
posterior head ascend to the cerebral cortex along the
__________________________ pathway - ANSWER-
posterior column-medial lemniscus
Nerve impulses fro pain, temperature, itch, and tickles
ascend to the cerebral cortex along the
________________________ pathway - ANSWER-
anterolateral
Nerve impulses for most somatic sensation from the face,
nasal cavity, oral cavity etc, ascend tot he cerebral cortex
along the ______________________ pathway -
ANSWER-trigeminothalamic
The axons of the second order neurons cross tot he
opposite side of the pons and medulla and then ascend as
the ____________________________ tract - ANSWER-
trigeminothalamic
Where is the primary somatosensory area located ? -
ANSWER-the postcentral gyri of the parietal lobes of the
cerebral cortex
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These motor pathways provide input to lower motor
neurons from axons that extend directly from the cerebral
cortex - ANSWER-direct motor pathways
Where is the primary motor area located ? - ANSWER-
precentral gyrus of frontal lobe
The cornea, sclera, and the scleral venous sinus are in
what layer of the eyeball? - ANSWER-fibrous tunic
The ____________ lines the posterior three quarters of
the eye - ANSWER-retina
Where are these three layers found?
1. Photoreceptor layer
2. Bipolar cell layer
3. Ganglion cell layer - ANSWER-in the rentina , they are
the layers of retinal neurons
BIOL 235 MIDTERM EXAM AND PRACTICE EXAM 180
QUESTIONS AND CORRECT DETAILED ANSWERS||
VERIFIED EXAM!!|| (VERIFIED ANSWERS) |ALREADY
GRADED A+|| NEWEST EXAM!!!
______________ is the conscious or subconscious
awareness of changes in the external or internal
environement - ANSWER-sensation
These sensory receptors are bare dendrites that lack any
structural specialization.
Ex: receptors for pain, temp, itch, tickle - ANSWER-Free
nerve endings
What kind of receptors are associated with visceral
sensation such as pressure and vibration? - ANSWER-
encapsulated nerve ending
The sensation of hearing, visions, smell, taste, touch,
pressure, vibration, temperature and pain are all conveyed
by ______________ - ANSWER-exteroceptors
,2|Page
Where are interoceptors found? - ANSWER-in blood
vessels, visceral organs, muscles, and the nervous
system
What are the proprioceptors in skeletal muscles that are
responsible for monitoring changes in the length of the
muscles in stretch reflexes? - ANSWER-muscle spindles
These are located at the junction of a tendon and a
muscle - ANSWER-tendon organs
These neurons conduct impulses from somatic receptors
into the brain or spinal cord - ANSWER-First-order
neruons
These neurons conduct impulses from the brain stem and
spinal cord to the thalamus - ANSWER-second-order
neurons
These neurons conduct impulses from the thalamus to the
primary somatosensory area of the cortex on the same
side - ANSWER-third-order neurons
,3|Page
Nerve impulses for touch, pressure, vibration, and
conscious proprioception from the limbs, trunk, neck,, and
posterior head ascend to the cerebral cortex along the
__________________________ pathway - ANSWER-
posterior column-medial lemniscus
Nerve impulses fro pain, temperature, itch, and tickles
ascend to the cerebral cortex along the
________________________ pathway - ANSWER-
anterolateral
Nerve impulses for most somatic sensation from the face,
nasal cavity, oral cavity etc, ascend tot he cerebral cortex
along the ______________________ pathway -
ANSWER-trigeminothalamic
The axons of the second order neurons cross tot he
opposite side of the pons and medulla and then ascend as
the ____________________________ tract - ANSWER-
trigeminothalamic
Where is the primary somatosensory area located ? -
ANSWER-the postcentral gyri of the parietal lobes of the
cerebral cortex
, 4|Page
These motor pathways provide input to lower motor
neurons from axons that extend directly from the cerebral
cortex - ANSWER-direct motor pathways
Where is the primary motor area located ? - ANSWER-
precentral gyrus of frontal lobe
The cornea, sclera, and the scleral venous sinus are in
what layer of the eyeball? - ANSWER-fibrous tunic
The ____________ lines the posterior three quarters of
the eye - ANSWER-retina
Where are these three layers found?
1. Photoreceptor layer
2. Bipolar cell layer
3. Ganglion cell layer - ANSWER-in the rentina , they are
the layers of retinal neurons
