Question 1

Describe the phototransduction process.

Accepted Answer

The answer of Describe the phototransduction process....

Question 2

Which statement correctly describes hyperopia?

Accepted Answer

A) A near object is focused in front of the retina, even with accommodation. 
B) A far source of light is focused on the surface of the retina. 
C)  The eyeball is too rounded. 
D)  The eyeball is too short or the lens is too weak. 
A) A near object is focused in front of the retina, even with accommodation. 
B) A far source of light is focused on the surface of the retina. 
C)  The eyeball is too rounded. 
D)  The eyeball is too short or the lens is too weak.

Question 3

Which of these statements concerning the sympathetic nervous system is correct?

Accepted Answer

A) It is always excitatory. 
B) It innervates only tissues concerned with protecting the body against challenges from the outside environment. 
C)  It dominates in fight-or-fight situations. 
D)  It is part of the somatic nervous system. 
A) It is always excitatory. 
B) It innervates only tissues concerned with protecting the body against challenges from the outside environment. 
C)  It dominates in fight-or-fight situations. 
D)  It is part of the somatic nervous system.

Question 4

Which of the following statements pertains to the autonomic nervous system?

Accepted Answer

A) It is part of the somatic nervous system. 
B) It is considered to be the involuntary branch of the efferent division of the peripheral nervous system. 
C)  It is part of the central nervous system. 
D)  It is part of the afferent division of the nervous system. 
A) It is part of the somatic nervous system. 
B) It is considered to be the involuntary branch of the efferent division of the peripheral nervous system. 
C)  It is part of the central nervous system. 
D)  It is part of the afferent division of the nervous system.

Question 5

Match the part of the autonomic nervous system, labelled a. through d., with its description(s). (Options may be used more than once or not at all.)
a.sympathetic nervous system
b.parasympathetic nervous system
c.both sympathetic and parasympathetic nervous system
d.neither sympathetic nor parasympathetic nervous system
-has a short preganglionic fibre and a long postganglionic fibre

Accepted Answer

The answer of Match the part of the autonomic nervous...

Question 6

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 the ossicular system, which contributes to the amplification of the sound wave

Accepted Answer

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

Question 7

Which of these statements describes what must happen in order for accommodation to occur?

Accepted Answer

A) The shape of the cornea must be changed. 
B) The shape of the lens must be changed. 
C)  The ciliary muscle must be relaxed for near vision. 
D)  The ciliary muscle must be contracted for distant vision. 
A) The shape of the cornea must be changed. 
B) The shape of the lens must be changed. 
C)  The ciliary muscle must be relaxed for near vision. 
D)  The ciliary muscle must be contracted for distant vision.

Question 8

A convex lens converges light rays or brings them closer together.

Accepted Answer

A) True 
 B)False

Question 9

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
-cochlea

Accepted Answer

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

Question 10

Prostaglandins suppress the sensitivity of nociceptors.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is a cause of conductive hearing loss?

Accepted Answer

A) a lesion of the auditory nerve 
B) disease of the inner ear 
C)  impacted earwax or inflammation of the middle ear 
D)  effect of ototoxic drugs 
A) a lesion of the auditory nerve 
B) disease of the inner ear 
C)  impacted earwax or inflammation of the middle ear 
D)  effect of ototoxic drugs

Question 12

Match the type of neuron, labelled a. through d., with its description(s). (Options may be used more than once or not at all.)
a.all three types of neurons
b.both afferent and efferent neurons
c.afferent neurons
d.efferent neurons or interneurons
-carry information to the central nervous system

Accepted Answer

The answer of Match the type of neuron, labelled a....

Question 13

Which of the following must happen for accommodation to occur?

Accepted Answer

A) The shape of the cornea must be changed. 
B) The shape of the lens must be changed. 
C)  The ciliary muscle must relax for near vision. 
D)  The ciliary muscle must contract for distant vision. 
A) The shape of the cornea must be changed. 
B) The shape of the lens must be changed. 
C)  The ciliary muscle must relax for near vision. 
D)  The ciliary muscle must contract for distant vision.

Question 14

All preganglionic autonomic neurons secrete ___________________.

Accepted Answer

A) epinephrine 
B) acetylcholine 
C)  nicotine 
D)  dopamine 
A) epinephrine 
B) acetylcholine 
C)  nicotine 
D)  dopamine

Question 15

Which of the following statements does NOT apply to botulinum toxin?

Accepted Answer

A) It temporarily smooths out age-related wrinkles. 
B) It is effective against wrinkles caused by excessive sun exposure. 
C)  It is a toxin produced by Clostridium botulinum. 
D)  In therapeutic dose, it is effective in relieving the painful neuromuscular disease known as dystonia. 
A) It temporarily smooths out age-related wrinkles. 
B) It is effective against wrinkles caused by excessive sun exposure. 
C)  It is a toxin produced by Clostridium botulinum. 
D)  In therapeutic dose, it is effective in relieving the painful neuromuscular disease known as dystonia.

Question 16

Under which of these conditions does natural analgesia occur?

Accepted Answer

A) when endogenous opiates bind to P-substance 
B) when endogenous opiates bind to receptors on afferent pain fibres 
C)  when the anterior grey horn is stimulated 
D)  when C fibres are stimulated 
A) when endogenous opiates bind to P-substance 
B) when endogenous opiates bind to receptors on afferent pain fibres 
C)  when the anterior grey horn is stimulated 
D)  when C fibres are stimulated

Question 17

Which of these situations can activate the slow pain pathway?

Accepted Answer

A) stimulation of mechanical or thermal nociceptors 
B) stimulation of polymodal nociceptors 
C)  the absence of tissue injury 
D)  large and myelinated fibres 
A) stimulation of mechanical or thermal nociceptors 
B) stimulation of polymodal nociceptors 
C)  the absence of tissue injury 
D)  large and myelinated fibres

Question 18

An incoming pathway for subconscious information derived from the internal viscera is called a(n) ____________________, whereas an incoming pathway for information propagated to the conscious levels of the brain is called a(n) ____________________.

Accepted Answer

visceral a

Question 19

Light rays travel faster through water or glass than through air.

Accepted Answer

A) True 
 B)False

Question 20

The autonomic nervous system is the part of the peripheral nervous system that regulates smooth muscle, cardiac muscle, and glands.

Accepted Answer

A) True 
 B)False

Describe the phototransduction process.

Which statement correctly describes hyperopia?

Which of these statements concerning the sympathetic nervous system is correct?

Which of the following statements pertains to the autonomic nervous system?

Which of these statements describes what must happen in order for accommodation to occur?

A convex lens converges light rays or brings them closer together.

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 -cochlea

Prostaglandins suppress the sensitivity of nociceptors.

Which of the following is a cause of conductive hearing loss?

Match the type of neuron, labelled a. through d., with its description(s). (Options may be used more than once or not at all.) a.all three types of neurons b.both afferent and efferent neurons c.afferent neurons d.efferent neurons or interneurons -carry information to the central nervous system

Which of the following must happen for accommodation to occur?

All preganglionic autonomic neurons secrete ___________________.

Which of the following statements does NOT apply to botulinum toxin?

Under which of these conditions does natural analgesia occur?

Which of these situations can activate the slow pain pathway?

An incoming pathway for subconscious information derived from the internal viscera is called a(n) , whereas an incoming pathway for information propagated to the conscious levels of the brain is called a(n) .

Light rays travel faster through water or glass than through air.

The autonomic nervous system is the part of the peripheral nervous system that regulates smooth muscle, cardiac muscle, and glands.

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

Describe the phototransduction process.

Which statement correctly describes hyperopia?

Which of these statements concerning the sympathetic nervous system is correct?

Which of the following statements pertains to the autonomic nervous system?

Which of these statements describes what must happen in order for accommodation to occur?

A convex lens converges light rays or brings them closer together.

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 -cochlea

Prostaglandins suppress the sensitivity of nociceptors.

Which of the following is a cause of conductive hearing loss?

Match the type of neuron, labelled a. through d., with its description(s). (Options may be used more than once or not at all.) a.all three types of neurons b.both afferent and efferent neurons c.afferent neurons d.efferent neurons or interneurons -carry information to the central nervous system

Which of the following must happen for accommodation to occur?

All preganglionic autonomic neurons secrete ___________________.

Which of the following statements does NOT apply to botulinum toxin?

Under which of these conditions does natural analgesia occur?

Which of these situations can activate the slow pain pathway?

An incoming pathway for subconscious information derived from the internal viscera is called a(n) ____________________, whereas an incoming pathway for information propagated to the conscious levels of the brain is called a(n) ____________________.

Light rays travel faster through water or glass than through air.

The autonomic nervous system is the part of the peripheral nervous system that regulates smooth muscle, cardiac muscle, and glands.

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

An incoming pathway for subconscious information derived from the internal viscera is called a(n) , whereas an incoming pathway for information propagated to the conscious levels of the brain is called a(n) .