BI315 Exam 2 Tophat
1. After a serious wound heals, you may have residual numbness in a patch of skin around the
scar. This is because:
a. The wound damaged afferent pathways leading from skin to CNS
b. The wound damaged efferent pathways leading from the skin to the CNS
c. The wound damaged afferent pathways leading from the CNS to the skin
d. The wound damaged efferent pathways leading from CNS to the skin: a
2. A neuron that (1) has its cell body located in the ganglion outside the spinal cord, and (2) synapses
onto cardiac muscle cells and increase heart rate, would be classified as a part of:
a. the CNS and the somatic nervous system
b. the PNS and sympathetic nervous system
c. the PNS and the parasympathetic nervous system
d. the CNS and the sympathetic nervous system: b
3. Synesthesia "is a perceptual phenomenon in which stimulation of one sensory or cognitive
pathway leads to involuntary experiences in a second sensory or cognitive pathway." For example, a
person with synesthesia may report that they feel as though they are being touched in particular
places on their body (somatosensation) when they hear specific words (audition). Based on this, you
might hypothesize that synesthesia is a condition that is associated with unusual encoding
a. temporal
b. labeled lines
c. synaptic
d. rate: b
4. Damage to the would likely result in paralysis, while damage to the
would likely result in numbness.
a. motor cortex; somatosensory cortex
b. hypothalamus; medulla
c. somatosensory cortex; motor cortex
, BI315 Exam 2 Tophat
d. cerebellum; hypothalamus: a
5. Odorants (volatile chemicals in the air) are detected (signal transduction) by sensory neurons called
olfactory receptor neurons (ORNs) in your nose. How might this occur?
a. ORNs might express metabotropic receptors in their plasma membranes that odorants bind to
and activate
b. ORNs might be stimulated by presynaptic neurons when odorants are present in the nearby
interstitial fluid
c. ORNs might release odorant molecules as neurotransmitters, activating downstream
interneurons
, BI315 Exam 2 Tophat
d. Odorants might bind to and inactivate voltage gated Na+ channels in the axons of ORNs: a
6. match each anatomical term with the correct response:
1. Sympathetic nervous system
2. parasympathetic nervous system
3. enteric nervous system
4. somatic nervous system
options:
a. upregulates physiological processes associated with digestion energy stor- age and reproduction
b. effector neurons predominantly release norepinephrine onto target cells
c. semi- autonomously regulates gut function and motility
d. effector neurons synapse onto skeletal muscles: 1. a
2. a
3. c
4. d
7. Only photons that are coming from a particular region of visual space will be moving at the correct
angle to strike a particular photoreceptor in your retina and activate it. That region of visual space is
therefore that photoreceptor's:
a. coding strategy
b. labeled line
c. receptive field
d. ascending pathway: c
8. If you insert a stimulating electrode into a cutaneous mechanoreceptor neuron in your finger and
stimulate it, causing it to fire faster and faster, you will experience:
a. the sensation of increasing non-painful pressure on your skin
b. no sensation, because nothing is actually touching your skin
1. After a serious wound heals, you may have residual numbness in a patch of skin around the
scar. This is because:
a. The wound damaged afferent pathways leading from skin to CNS
b. The wound damaged efferent pathways leading from the skin to the CNS
c. The wound damaged afferent pathways leading from the CNS to the skin
d. The wound damaged efferent pathways leading from CNS to the skin: a
2. A neuron that (1) has its cell body located in the ganglion outside the spinal cord, and (2) synapses
onto cardiac muscle cells and increase heart rate, would be classified as a part of:
a. the CNS and the somatic nervous system
b. the PNS and sympathetic nervous system
c. the PNS and the parasympathetic nervous system
d. the CNS and the sympathetic nervous system: b
3. Synesthesia "is a perceptual phenomenon in which stimulation of one sensory or cognitive
pathway leads to involuntary experiences in a second sensory or cognitive pathway." For example, a
person with synesthesia may report that they feel as though they are being touched in particular
places on their body (somatosensation) when they hear specific words (audition). Based on this, you
might hypothesize that synesthesia is a condition that is associated with unusual encoding
a. temporal
b. labeled lines
c. synaptic
d. rate: b
4. Damage to the would likely result in paralysis, while damage to the
would likely result in numbness.
a. motor cortex; somatosensory cortex
b. hypothalamus; medulla
c. somatosensory cortex; motor cortex
, BI315 Exam 2 Tophat
d. cerebellum; hypothalamus: a
5. Odorants (volatile chemicals in the air) are detected (signal transduction) by sensory neurons called
olfactory receptor neurons (ORNs) in your nose. How might this occur?
a. ORNs might express metabotropic receptors in their plasma membranes that odorants bind to
and activate
b. ORNs might be stimulated by presynaptic neurons when odorants are present in the nearby
interstitial fluid
c. ORNs might release odorant molecules as neurotransmitters, activating downstream
interneurons
, BI315 Exam 2 Tophat
d. Odorants might bind to and inactivate voltage gated Na+ channels in the axons of ORNs: a
6. match each anatomical term with the correct response:
1. Sympathetic nervous system
2. parasympathetic nervous system
3. enteric nervous system
4. somatic nervous system
options:
a. upregulates physiological processes associated with digestion energy stor- age and reproduction
b. effector neurons predominantly release norepinephrine onto target cells
c. semi- autonomously regulates gut function and motility
d. effector neurons synapse onto skeletal muscles: 1. a
2. a
3. c
4. d
7. Only photons that are coming from a particular region of visual space will be moving at the correct
angle to strike a particular photoreceptor in your retina and activate it. That region of visual space is
therefore that photoreceptor's:
a. coding strategy
b. labeled line
c. receptive field
d. ascending pathway: c
8. If you insert a stimulating electrode into a cutaneous mechanoreceptor neuron in your finger and
stimulate it, causing it to fire faster and faster, you will experience:
a. the sensation of increasing non-painful pressure on your skin
b. no sensation, because nothing is actually touching your skin
