Question 1

The axons controlling skeletal muscles are large and myelinated.

Accepted Answer

A) True 
 B)False

Question 2

Which of these statements describes the retina

Accepted Answer

A) It is the middle layer of the eye. 
B) It contains the photoreceptors. 
C) It becomes specialized anteriorly to form the cornea. 
D) It secretes the aqueous humour.

Question 3

Binding of ____________________ to nicotinic receptors is always excitatory.

Accepted Answer

The answer of Binding of ____________________ to nicotinic receptors is...

Question 4

In the retina, photoreceptor cells do not synapse with bipolar cells.

Accepted Answer

A) True 
 B)False

Question 5

Organophosphates are a group of chemicals that modify neuromuscular junction activity by irreversibly inhibiting what chemical compound

Accepted Answer

A) acetylcholine 
B) acetylcholinesterase 
C) nicotinic acid 
D) epinephrine

Question 6

Which of these activities happens during dark adaptation

Accepted Answer

A) Rhodopsin is rapidly broken down. 
B) The cones for grey vision are stimulated more than the cones for colour vision. 
C) The sensitivity of the photoreceptors is reduced so that the image appears dim. 
D) Photopigments are gradually regenerated.

Question 7

The ____________________ is a modified sympathetic ganglion that does not give rise to postganglionic fibres, but instead secretes hormones similar or identical to sympathetic postganglionic neurotransmitters into the blood.

Accepted Answer

The answer of The ____________________ is a modified sympathetic ganglion...

Question 8

Which of the following conditions is caused by vitamin A deficiency

Accepted Answer

A) poor night vision 
B) astigmatism 
C) presbyopia 
D) colour blindness

Question 9

Which of the following applies to acetylcholinesterase

Accepted Answer

A) It enhances activity from organophosphates. 
B) It inactivates a neurotransmitter. 
C) It is a neurotransmitter. 
D) It stimulates an excitatory postsynaptic potential.

Question 10

Match the type of neuron, labelled a. through d., with its description(s). (Options may be used more than once or not at all.)
-terminate on effector organs

Accepted Answer

A) all three types of neurons 
B) both afferent and efferent neurons 
C) afferent neurons 
D) efferent neurons or interneurons

Question 11

The ____________________ is the ossicle attached to the oval window.

Accepted Answer

The answer of The ____________________ is the ossicle attached to...

Question 12

Rods and cones have a G protein called ____________________.

Accepted Answer

The answer of Rods and cones have a G protein...

Question 13

The refractive structure of the eye that has the ability to change its strength is the ____________________.

Accepted Answer

The answer of The refractive structure of the eye that...

Question 14

Cardiac activity is increased when norepinephrine binds on which of these receptors on cardiac muscle

Accepted Answer

A) cholinergic 
B) nicotinic 
C) alpha 
D) beta-1

Question 15

Match the rods and cones, labelled a. through c., with their properties. (Options may be used more than once or not at all.)
-confer colour vision

Accepted Answer

A) rods 
B) cones 
C) both rods and cones

Question 16

Match the type of neuron, labelled a. through d., with its description(s). (Options may be used more than once or not at all.)
-responsible for thoughts and other higher mental functions

Accepted Answer

A) all three types of neurons 
B) both afferent and efferent neurons 
C) afferent neurons 
D) efferent neurons or interneurons

Question 17

Depth perception comes about in large part because of binocular vision.

Accepted Answer

A) True 
 B)False

Question 18

All the following release acetylcholine EXCEPT _________

Accepted Answer

A) parasympathetic preganglionic fibres. 
B) sympathetic postganglionic fibres. 
C) parasympathetic postganglionic fibres. 
D) sympathetic preganglionic fibres.

Question 19

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.)
-provides information about the position of the head relative to gravity

Accepted Answer

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

Question 20

Which of these statements describes receptors

Accepted Answer

A) They respond to various physical or chemical changes in their environment. 
B) They carry impulses from the CNS. 
C) They are found at the peripheral endings of efferent neurons. 
D) They are found only in the somatic nervous system.

Exam 4: The Peripheral Nervous System: Sensory, Autonomic, Somatic

The axons controlling skeletal muscles are large and myelinated.

Which of these statements describes the retina

Binding of ____________________ to nicotinic receptors is always excitatory.

In the retina, photoreceptor cells do not synapse with bipolar cells.

Organophosphates are a group of chemicals that modify neuromuscular junction activity by irreversibly inhibiting what chemical compound

Which of these activities happens during dark adaptation

The ____________________ is a modified sympathetic ganglion that does not give rise to postganglionic fibres, but instead secretes hormones similar or identical to sympathetic postganglionic neurotransmitters into the blood.

Which of the following conditions is caused by vitamin A deficiency

Which of the following applies to acetylcholinesterase

Match the type of neuron, labelled a. through d., with its description(s) . (Options may be used more than once or not at all.) -terminate on effector organs

The ____________________ is the ossicle attached to the oval window.

Rods and cones have a G protein called ____________________.

The refractive structure of the eye that has the ability to change its strength is the ____________________.

Cardiac activity is increased when norepinephrine binds on which of these receptors on cardiac muscle

Match the rods and cones, labelled a. through c., with their properties. (Options may be used more than once or not at all.) -confer colour vision

Match the type of neuron, labelled a. through d., with its description(s) . (Options may be used more than once or not at all.) -responsible for thoughts and other higher mental functions

Depth perception comes about in large part because of binocular vision.

All the following release acetylcholine EXCEPT _________

Match the ear parts, labelled a. through e., with their characteristics. (Options may be used more than once or not at all.) -provides information about the position of the head relative to gravity

Which of these statements describes receptors