Question 1

Which activity occurs in the presence of light within the phototransduction pathway?

Accepted Answer

A) Ganglion cells produce action potentials. 
B) Potassium channels close in receptors. 
C)  Bipolar cells produce graded potentials. 
D)  Sodium channels open in receptors. 
A) Ganglion cells produce action potentials. 
B) Potassium channels close in receptors. 
C)  Bipolar cells produce graded potentials. 
D)  Sodium channels open in receptors.

Question 2

Which of these statements applies correctly to colour vision?

Accepted Answer

A) It is accomplished by rods at night and by cones during the day. 
B) It depends on the three cone types' various ratios of stimulation in response to different wavelengths of light. 
C)  It is usually lost in vitamin A deficiency. 
D)  Same types of cones may use different neural pathways for comparing their outputs. 
A) It is accomplished by rods at night and by cones during the day. 
B) It depends on the three cone types' various ratios of stimulation in response to different wavelengths of light. 
C)  It is usually lost in vitamin A deficiency. 
D)  Same types of cones may use different neural pathways for comparing their outputs.

Question 3

Which of the following statements concerning the oval window is correct?

Accepted Answer

A) It attaches to the malleus. 
B) It transfers the sound wave from the external ear to the middle ear. 
C)  It is reflexively tightened in response to loud sounds to diminish transmission of these sounds to the inner ear. 
D)  It attaches to the stapes and transfers the sound wave from the middle ear to the inner ear. 
A) It attaches to the malleus. 
B) It transfers the sound wave from the external ear to the middle ear. 
C)  It is reflexively tightened in response to loud sounds to diminish transmission of these sounds to the inner ear. 
D)  It attaches to the stapes and transfers the sound wave from the middle ear to the inner ear.

Question 4

Which of these statements correctly describes the lens of the eye?

Accepted Answer

A) It has convex surfaces. 
B) It is stronger when it is flatter. 
C)  It contributes most extensively to the eye's total refractive ability. 
D)  The stronger lens must be used for distant sources. 
A) It has convex surfaces. 
B) It is stronger when it is flatter. 
C)  It contributes most extensively to the eye's total refractive ability. 
D)  The stronger lens must be used for distant sources.

Question 5

The ____________________ is the region of the retina where rods and cones are absent.

Accepted Answer

blind spot

Question 6

Which one of the following structures is an anterior specialization of the choroid layer?

Accepted Answer

A) aqueous humour 
B) ciliary body 
C)  cornea 
D)  lens 
A) aqueous humour 
B) ciliary body 
C)  cornea 
D)  lens

Question 7

Match the terms, labelled a. through c., with their descriptions. (Options may be used more than once or not at all.)
a.timbre (quality)
b.pitch (tone)
c.intensity of a sound wave (loudness)
-measured in cycles per second

Accepted Answer

The answer of Match the terms, labelled a. through c.,...

Question 8

An EPP is a graded potential.

Accepted Answer

A) True 
 B)False

Question 9

Match the receptors, labelled a. through d., with their function.
a.tonic receptor
b.phasic receptor
c.specialized receptor ending of afferent neuron
d.separate cell serving as a receptor
-provides continuous information about the stimuli being monitored

Accepted Answer

The answer of Match the receptors, labelled a. through d.,...

Question 10

Which of the following is NOT a characteristic feature of the sympathetic nervous system?

Accepted Answer

A) It promotes responses that prepare the body for strenuous physical activity. 
B) It is part of the autonomic nervous system. 
C)  It has norepinephrine as its postganglionic neurotransmitter. 
D)  It is always excitatory (i.e., it increases the activity in every tissue it innervates). 
A) It promotes responses that prepare the body for strenuous physical activity. 
B) It is part of the autonomic nervous system. 
C)  It has norepinephrine as its postganglionic neurotransmitter. 
D)  It is always excitatory (i.e., it increases the activity in every tissue it innervates).

Question 11

Which statement does NOT correctly describe slow pain?

Accepted Answer

A) It is carried by large, myelinated, A-delta fibres. 
B) It is poorly localized. 
C)  It occurs by stimulation of polymodal nociceptors. 
D)  It occurs for a longer time than fast pain. 
A) It is carried by large, myelinated, A-delta fibres. 
B) It is poorly localized. 
C)  It occurs by stimulation of polymodal nociceptors. 
D)  It occurs for a longer time than fast pain.

Question 12

Match the receptors, labelled a. through c., to their locations. (Options may be used more than once or not at all.)
a.chemoreceptors
b.mechanoreceptors
c.photoreceptors
-olfactory mucosa

Accepted Answer

The answer of Match the receptors, labelled a. through c.,...

Question 13

Nicotinic and muscarinic receptors are the two kinds of adrenergic receptors.

Accepted Answer

A) True 
 B)False

Question 14

The fovea is the point on the retina where the optic nerve leaves.

Accepted Answer

A) True 
 B)False

Question 15

Match the structures, labelled a. through h., with their proper sequence of involvement in the visual pathway.
a.bipolar neurons
b.optic nerve
c.lateral geniculate nucleus
d.rods and cones
e.visual cortex
f.optic tracts
g.ganglion cells
h.optic radiations
-third

Accepted Answer

The answer of Match the structures, labelled a. through h.,...

Question 16

Photoreceptors, bipolar cells, and ganglion cells all display action potentials.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following structures relay(s) incoming visual information to the appropriate cortical tissue?

Accepted Answer

A) colliculi 
B) lateral geniculate nuclei 
C)  hypothalamus 
D)  thalamus and hypothalamus 
A) colliculi 
B) lateral geniculate nuclei 
C)  hypothalamus 
D)  thalamus and hypothalamus

Question 18

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.)
a.colour blindness
b.night blindness
c.glaucoma
d.hyperopia
e.diplopia
f.presbyopia
g.myopia
h.cataract
i.astigmatism
-corrected by cylindrical lens

Accepted Answer

The answer of Match the eye disorders, labelled a. through...

Question 19

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.)
a.colour blindness
b.night blindness
c.glaucoma
d.hyperopia
e.diplopia
f.presbyopia
g.myopia
h.cataract
i.astigmatism
-corrected by concave lens

Accepted Answer

The answer of Match the eye disorders, labelled a. through...

Question 20

Which of the following statements pertains to olfactory receptors?

Accepted Answer

A) They are specialized endings of efferent neurons in separate cells. 
B) When stimulated, they send impulses to both the limbic system for coordination between smell and behaviour, and to the thalamus and cortex for perception of smell. 
C)  They synapse in the thalamus. 
D)  A substance must be fat soluble in order to be smelled. 
A) They are specialized endings of efferent neurons in separate cells. 
B) When stimulated, they send impulses to both the limbic system for coordination between smell and behaviour, and to the thalamus and cortex for perception of smell. 
C)  They synapse in the thalamus. 
D)  A substance must be fat soluble in order to be smelled.

Which activity occurs in the presence of light within the phototransduction pathway?

Which of these statements applies correctly to colour vision?

Which of the following statements concerning the oval window is correct?

Which of these statements correctly describes the lens of the eye?

The ____________________ is the region of the retina where rods and cones are absent.

Which one of the following structures is an anterior specialization of the choroid layer?

Match the terms, labelled a. through c., with their descriptions. (Options may be used more than once or not at all.) a.timbre (quality) b.pitch (tone) c.intensity of a sound wave (loudness) -measured in cycles per second

An EPP is a graded potential.

Match the receptors, labelled a. through d., with their function. a.tonic receptor b.phasic receptor c.specialized receptor ending of afferent neuron d.separate cell serving as a receptor -provides continuous information about the stimuli being monitored

Which of the following is NOT a characteristic feature of the sympathetic nervous system?

Which statement does NOT correctly describe slow pain?

Match the receptors, labelled a. through c., to their locations. (Options may be used more than once or not at all.) a.chemoreceptors b.mechanoreceptors c.photoreceptors -olfactory mucosa

Nicotinic and muscarinic receptors are the two kinds of adrenergic receptors.

The fovea is the point on the retina where the optic nerve leaves.

Match the structures, labelled a. through h., with their proper sequence of involvement in the visual pathway. a.bipolar neurons b.optic nerve c.lateral geniculate nucleus d.rods and cones e.visual cortex f.optic tracts g.ganglion cells h.optic radiations -third

Photoreceptors, bipolar cells, and ganglion cells all display action potentials.

Which of the following structures relay(s) incoming visual information to the appropriate cortical tissue?

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) a.colour blindness b.night blindness c.glaucoma d.hyperopia e.diplopia f.presbyopia g.myopia h.cataract i.astigmatism -corrected by cylindrical lens

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) a.colour blindness b.night blindness c.glaucoma d.hyperopia e.diplopia f.presbyopia g.myopia h.cataract i.astigmatism -corrected by concave lens

Which of the following statements pertains to olfactory receptors?

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

The Central Nervous System

The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

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Exam 4: Principles of Neural and Hormonal Communication

Which activity occurs in the presence of light within the phototransduction pathway?

Which of these statements applies correctly to colour vision?

Which of the following statements concerning the oval window is correct?

Which of these statements correctly describes the lens of the eye?

The ____________________ is the region of the retina where rods and cones are absent.

Which one of the following structures is an anterior specialization of the choroid layer?

Match the terms, labelled a. through c., with their descriptions. (Options may be used more than once or not at all.) a.timbre (quality) b.pitch (tone) c.intensity of a sound wave (loudness) -measured in cycles per second

An EPP is a graded potential.

Match the receptors, labelled a. through d., with their function. a.tonic receptor b.phasic receptor c.specialized receptor ending of afferent neuron d.separate cell serving as a receptor -provides continuous information about the stimuli being monitored

Which of the following is NOT a characteristic feature of the sympathetic nervous system?

Which statement does NOT correctly describe slow pain?

Match the receptors, labelled a. through c., to their locations. (Options may be used more than once or not at all.) a.chemoreceptors b.mechanoreceptors c.photoreceptors -olfactory mucosa

Nicotinic and muscarinic receptors are the two kinds of adrenergic receptors.

The fovea is the point on the retina where the optic nerve leaves.

Match the structures, labelled a. through h., with their proper sequence of involvement in the visual pathway. a.bipolar neurons b.optic nerve c.lateral geniculate nucleus d.rods and cones e.visual cortex f.optic tracts g.ganglion cells h.optic radiations -third

Photoreceptors, bipolar cells, and ganglion cells all display action potentials.

Which of the following structures relay(s) incoming visual information to the appropriate cortical tissue?

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) a.colour blindness b.night blindness c.glaucoma d.hyperopia e.diplopia f.presbyopia g.myopia h.cataract i.astigmatism -corrected by cylindrical lens

Match the eye disorders, labelled a. through i., with their descriptions. (Options may be used more than once or not at all.) a.colour blindness b.night blindness c.glaucoma d.hyperopia e.diplopia f.presbyopia g.myopia h.cataract i.astigmatism -corrected by concave lens

Which of the following statements pertains to olfactory receptors?

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

The Central Nervous System

The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters