Question 1

How are high- and low-frequency sounds discriminated?

Accepted Answer

A) Low frequencies produce stronger vibrations. 
B) High frequencies produce larger action potentials. 
C)  The middle ear bones vibrate more vigorously for low frequencies. 
D)  Low frequencies deflect the basilar membrane at a greater distance from the oval window. 
A) Low frequencies produce stronger vibrations. 
B) High frequencies produce larger action potentials. 
C)  The middle ear bones vibrate more vigorously for low frequencies. 
D)  Low frequencies deflect the basilar membrane at a greater distance from the oval window.

Question 2

Which statement concerning receptor potentials is correct?

Accepted Answer

A) They are usually repolarizations of receptors. 
B) They are graded potentials. 
C)  They occur in neuronal cell bodies upon summation of presynaptic input. 
D)  They self-propagate along the efferent fibres. 
A) They are usually repolarizations of receptors. 
B) They are graded potentials. 
C)  They occur in neuronal cell bodies upon summation of presynaptic input. 
D)  They self-propagate along the efferent fibres.

Question 3

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
-eyeball too long

Accepted Answer

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

Question 4

Sympathetic postganglionic fibres are longer than parasympathetic postganglionic fibres.

Accepted Answer

A) True 
 B)False

Question 5

Cones are more abundant than rods throughout the entire retina.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following are NOT correctly paired?

Accepted Answer

A) chemoreceptor and oxygen concentration 
B) mechanoreceptor and skeletal muscle stretch 
C)  nociceptor and light touch 
D)  photoreceptor and light 
A) chemoreceptor and oxygen concentration 
B) mechanoreceptor and skeletal muscle stretch 
C)  nociceptor and light touch 
D)  photoreceptor and light

Question 7

Which statement correctly describes receptors?

Accepted Answer

A) The larger the receptor potential, the greater the frequency of action potentials initiated in the afferent neuron. 
B) Tonic receptors often exhibit an "off-response." 
C)  Phasic receptors are important in situations where maintained information about a stimulus is valuable. 
D)  Receptor adaptation results from nerve fatigue. 
A) The larger the receptor potential, the greater the frequency of action potentials initiated in the afferent neuron. 
B) Tonic receptors often exhibit an "off-response." 
C)  Phasic receptors are important in situations where maintained information about a stimulus is valuable. 
D)  Receptor adaptation results from nerve fatigue.

Question 8

Which of the following correctly describes the sympathetic nervous system?

Accepted Answer

A) It is part of the somatic nervous system. 
B) It has cholinergic preganglionic and adrenergic postganglionic fibres. 
C)  It originates in the cranial and lumbar regions of the spinal cord. 
D)  It originates in the sacral region of the spinal cord. 
A) It is part of the somatic nervous system. 
B) It has cholinergic preganglionic and adrenergic postganglionic fibres. 
C)  It originates in the cranial and lumbar regions of the spinal cord. 
D)  It originates in the sacral region of the spinal cord.

Question 9

The lateral geniculate nucleus is located in the ____________________ of the brain.

Accepted Answer

The answer of The lateral geniculate nucleus is located in...

Question 10

Nociceptors are naked (free) nerve endings.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following statements best describes parasympathetic postganglionic fibres?

Accepted Answer

A) They arise from the ganglion chain located along either side of the spinal cord. 
B) They are cholinergic fibres. 
C)  They secrete norepinephrine. 
D)  They are longer than preganglionic fibres. 
A) They arise from the ganglion chain located along either side of the spinal cord. 
B) They are cholinergic fibres. 
C)  They secrete norepinephrine. 
D)  They are longer than preganglionic fibres.

Question 12

Which of the following structures is associated with hearing?

Accepted Answer

A) ampulla 
B) cochlea 
C)  cupula 
D)  cristae 
A) ampulla 
B) cochlea 
C)  cupula 
D)  cristae

Question 13

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
a.external ear
b.middle ear
c.cochlea in the inner ear
d.semicircular canal in the inner ear
e.utricle and saccule in the inner ear
-part of the vestibular apparatus

Accepted Answer

The answer of Match the ear parts, labelled a. through...

Question 14

Which of these neuromodulators is NOT capable of binding to opiate receptors in the analgesic pathways?

Accepted Answer

A) dynorphin 
B) endogenous opiate 
C)  endorphin 
D)  bradykinin 
A) dynorphin 
B) endogenous opiate 
C)  endorphin 
D)  bradykinin

Question 15

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
a.external ear
b.middle ear
c.cochlea in the inner ear
d.semicircular canal in the inner ear
e.utricle and saccule in the inner ear
-contains a cupula, which sways in the direction of endolymph movement, bending the embedded hair cells

Accepted Answer

The answer of Match the ear parts, labelled a. through...

Question 16

Relaxation of the ciliary muscle changes the cornea into a flattened shape.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following is characteristic of presbyopia?

Accepted Answer

A) the lack of a cone type 
B) pronounced visual difficulty in the early teenage years 
C)  a reduction in accommodative ability due to loss of lens elasticity 
D)  retinal damage 
A) the lack of a cone type 
B) pronounced visual difficulty in the early teenage years 
C)  a reduction in accommodative ability due to loss of lens elasticity 
D)  retinal damage

Question 18

The parasympathetic nervous system inhibits the rate of heartbeat.

Accepted Answer

A) True 
 B)False

Question 19

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
a.external ear
b.middle ear
c.cochlea in the inner ear
d.semicircular canal in the inner ear
e.utricle and saccule in the inner ear
-provides information about the position of the head relative to gravity

Accepted Answer

The answer of Match the ear parts, labelled a. through...

Question 20

Normal breathing patterns directly bring odoriferous molecules into contact with the olfactory mucosa.

Accepted Answer

A) True 
 B)False

How are high- and low-frequency sounds discriminated?

Which statement concerning receptor potentials is correct?

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 -eyeball too long

Sympathetic postganglionic fibres are longer than parasympathetic postganglionic fibres.

Cones are more abundant than rods throughout the entire retina.

Which of the following are NOT correctly paired?

Which statement correctly describes receptors?

Which of the following correctly describes the sympathetic nervous system?

The lateral geniculate nucleus is located in the ____________________ of the brain.

Nociceptors are naked (free) nerve endings.

Which of the following statements best describes parasympathetic postganglionic fibres?

Which of the following structures is associated with hearing?

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) a.external ear b.middle ear c.cochlea in the inner ear d.semicircular canal in the inner ear e.utricle and saccule in the inner ear -part of the vestibular apparatus

Which of these neuromodulators is NOT capable of binding to opiate receptors in the analgesic pathways?

Relaxation of the ciliary muscle changes the cornea into a flattened shape.

Which of the following is characteristic of presbyopia?

The parasympathetic nervous system inhibits the rate of heartbeat.

Normal breathing patterns directly bring odoriferous molecules into contact with the olfactory mucosa.

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

Exam 4: Principles of Neural and Hormonal Communication

How are high- and low-frequency sounds discriminated?

Which statement concerning receptor potentials is correct?

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 -eyeball too long

Sympathetic postganglionic fibres are longer than parasympathetic postganglionic fibres.

Cones are more abundant than rods throughout the entire retina.

Which of the following are NOT correctly paired?

Which statement correctly describes receptors?

Which of the following correctly describes the sympathetic nervous system?

The lateral geniculate nucleus is located in the ____________________ of the brain.

Nociceptors are naked (free) nerve endings.

Which of the following statements best describes parasympathetic postganglionic fibres?

Which of the following structures is associated with hearing?

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) a.external ear b.middle ear c.cochlea in the inner ear d.semicircular canal in the inner ear e.utricle and saccule in the inner ear -part of the vestibular apparatus

Which of these neuromodulators is NOT capable of binding to opiate receptors in the analgesic pathways?

Relaxation of the ciliary muscle changes the cornea into a flattened shape.

Which of the following is characteristic of presbyopia?

The parasympathetic nervous system inhibits the rate of heartbeat.

Normal breathing patterns directly bring odoriferous molecules into contact with the olfactory mucosa.

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