Question 1

Which of these statements describes grey matter with respect to the cerebrum?

Accepted Answer

A)  It is located in the inner region. 
B)  It is located in the outer region and the central region surrounding the ventricles. 
C)  It is composed of nerve fibres. 
D)  It is responsible for transmission of information between neurons. 
A)  It is located in the inner region. 
B)  It is located in the outer region and the central region surrounding the ventricles. 
C)  It is composed of nerve fibres. 
D)  It is responsible for transmission of information between neurons.

Question 2

Which of these statements describes a sensillum?

Accepted Answer

A)  a structure located on the antennae, foot, or mouthparts of aquatic insects 
B)  a structure common to earthworms, insects, and cnidarians 
C)  a specialized smell receptor in invertebrates 
D)  a hollow hair-like tube characterized by a pore on the end and multiple chemoreceptor cells inside 
A)  a structure located on the antennae, foot, or mouthparts of aquatic insects 
B)  a structure common to earthworms, insects, and cnidarians 
C)  a specialized smell receptor in invertebrates 
D)  a hollow hair-like tube characterized by a pore on the end and multiple chemoreceptor cells inside

Question 3

Figure 45-3  
-In Figure 45-3, which numbers identify the structures that are made of bone?

Accepted Answer

A)  1, 2, 3 
B)  3, 4, 5 
C)  6, 7, 8 
D)  9, 10, 11 
A)  1, 2, 3 
B)  3, 4, 5 
C)  6, 7, 8 
D)  9, 10, 11

Question 4

Which neurons are typically located in the peripheral nervous system?

Accepted Answer

A)  spinal cord nerve cells 
B)  interneurons 
C)  brain nerve cells 
D)  motor neurons 
A)  spinal cord nerve cells 
B)  interneurons 
C)  brain nerve cells 
D)  motor neurons

Question 5

Identify each lettered part of the vestibular apparatus shown.  
-anterior semicircular canal

Accepted Answer

The answer of Identify each lettered part of the vestibular...

Question 6

Identify each lettered part of the vestibular apparatus shown.  
-otoliths

Accepted Answer

The answer of Identify each lettered part of the vestibular...

Question 7

Explain the general process of a reflex.

Accepted Answer

A reflex is an immediate reaction, often

Question 8

Match each descriptive phrase to a receptor type. Receptor types may be used more than once.
-detect tissue damage

Accepted Answer

A) mechanoreceptors 
B) photoreceptors 
C) chemoreceptors 
D) thermoreceptors 
E) nociceptors 
A) mechanoreceptors 
B) photoreceptors 
C) chemoreceptors 
D) thermoreceptors 
E) nociceptors

Question 9

Identify each lettered cell in the human eye shown.  
-bipolar cell

Accepted Answer

The answer of Identify each lettered cell in the human...

Question 10

What is the function of the iris?

Accepted Answer

A)  to keep the lens under tension to allow for image focusing 
B)  to control the amount of light entering the eye 
C)  to focus the image on the retina 
D)  to respond to particular colours 
A)  to keep the lens under tension to allow for image focusing 
B)  to control the amount of light entering the eye 
C)  to focus the image on the retina 
D)  to respond to particular colours

Question 11

At which of these neuron locations does summation occur?

Accepted Answer

A)  dendrites 
B)  axon hillock 
C)  axon terminals 
D)  cell body 
A)  dendrites 
B)  axon hillock 
C)  axon terminals 
D)  cell body

Question 12

Match each term with its definition.
-photopsins

Accepted Answer

A) single units of a compound eye 
B) allow animals to detect and use Earth's magnetic field for navigation 
C) structure that creates pressure waves in the cochlea as it vibrates 
D) reduction in the frequency of action potentials generated by afferent neurons even though the stimulus has not changed 
E) commonly known as the eardrum
F)specialized receptors that detect electrical fields
G)viscous liquid filling the human eye cavity between the retina and lens
H)responsible for terrestrial vertebrates' ability to perceive motion and position of the head
I)process of converting a stimulus into a change in the membrane potential
J)cells in the human eye that connect bipolar cells and ganglion cells
K)dendrites of afferent neurons, or specialized cells that synapse with afferent neurons, that can gather information about the environment
L)calcium carbonate crystals that bend stereocilia as a result of movement of the head
M)a duct that eliminates pressure differentials that can occur between the outer and middle ear
N)process by which the contrast between dark and light is increased in visual processing in the mammalian eye
O)family of photopigments consisting of opsins combined with retinal
P)photopigment found in vertebrate and invertebrate eyes alike
Q)clear liquid between the cornea and the lens of a human eye
R)cells in the human eye that connect different photoreceptor cells to each other
S)where a portion of each optic nerve crosses to the opposite side of the brain
T)detect stimuli used for balance and the perception of body position
U)small region in the retina where cones are concentrated
V)specialized muscle cells surrounded by afferent neuron dendrites; detect the degree of stretching that a muscle is undergoing
W)the site in the thalamus where most optic axons make synapses with interneurons leading to the visual cortex
X)hollow sensory bristles in insects 
A) single units of a compound eye 
B) allow animals to detect and use Earth's magnetic field for navigation 
C) structure that creates pressure waves in the cochlea as it vibrates 
D) reduction in the frequency of action potentials generated by afferent neurons even though the stimulus has not changed 
E) commonly known as the eardrum
F)specialized receptors that detect electrical fields
G)viscous liquid filling the human eye cavity between the retina and lens
H)responsible for terrestrial vertebrates' ability to perceive motion and position of the head
I)process of converting a stimulus into a change in the membrane potential
J)cells in the human eye that connect bipolar cells and ganglion cells
K)dendrites of afferent neurons, or specialized cells that synapse with afferent neurons, that can gather information about the environment
L)calcium carbonate crystals that bend stereocilia as a result of movement of the head
M)a duct that eliminates pressure differentials that can occur between the outer and middle ear
N)process by which the contrast between dark and light is increased in visual processing in the mammalian eye
O)family of photopigments consisting of opsins combined with retinal
P)photopigment found in vertebrate and invertebrate eyes alike
Q)clear liquid between the cornea and the lens of a human eye
R)cells in the human eye that connect different photoreceptor cells to each other
S)where a portion of each optic nerve crosses to the opposite side of the brain
T)detect stimuli used for balance and the perception of body position
U)small region in the retina where cones are concentrated
V)specialized muscle cells surrounded by afferent neuron dendrites; detect the degree of stretching that a muscle is undergoing
W)the site in the thalamus where most optic axons make synapses with interneurons leading to the visual cortex
X)hollow sensory bristles in insects

Question 13

A toxin interferes with the opening of Na+ channels in the postsynaptic membrane so that they open more slowly when bound to a neurotransmitter. What effect would there be on action potential formation in the postsynaptic membrane?

Accepted Answer

This would cause a postsynapti

Question 14

Humans have different thermoreceptors for heat and cold.

Accepted Answer

A) True 
 B)False

Question 15

Identify each lettered part of the neuromast shown.  
-stereocilia

Accepted Answer

The answer of Identify each lettered part of the neuromast...

Question 16

Identify each lettered part of the vestibular apparatus shown.  
-utricle

Accepted Answer

The answer of Identify each lettered part of the vestibular...

Question 17

Which of these terms refers to the component of a neural signalling pathway in which messages are sorted and interpreted?

Accepted Answer

A)  integration 
B)  reception 
C)  response 
D)  action 
A)  integration 
B)  reception 
C)  response 
D)  action

Question 18

The nervous systems of arthropods are composed of nerve nets.

Accepted Answer

A) True 
 B)False

Question 19

Identify each lettered part of the human eye shown.  
-sclera

Accepted Answer

The answer of Identify each lettered part of the human...

Question 20

Identify each lettered part of the human eye shown.  
-aqueous humour

Accepted Answer

The answer of Identify each lettered part of the human...

Exam 45: Control of Animal Processes: Neural Control

Which of these statements describes grey matter with respect to the cerebrum?

Which of these statements describes a sensillum?

Figure 45-3 -In Figure 45-3, which numbers identify the structures that are made of bone?

Which neurons are typically located in the peripheral nervous system?

Identify each lettered part of the vestibular apparatus shown. -anterior semicircular canal

Identify each lettered part of the vestibular apparatus shown. -otoliths

Explain the general process of a reflex.

Match each descriptive phrase to a receptor type. Receptor types may be used more than once. -detect tissue damage

Identify each lettered cell in the human eye shown. -bipolar cell

What is the function of the iris?

At which of these neuron locations does summation occur?

Match each term with its definition. -photopsins

A toxin interferes with the opening of Na+ channels in the postsynaptic membrane so that they open more slowly when bound to a neurotransmitter. What effect would there be on action potential formation in the postsynaptic membrane?

Humans have different thermoreceptors for heat and cold.

Identify each lettered part of the neuromast shown. -stereocilia

Identify each lettered part of the vestibular apparatus shown. -utricle

Which of these terms refers to the component of a neural signalling pathway in which messages are sorted and interpreted?

The nervous systems of arthropods are composed of nerve nets.

Identify each lettered part of the human eye shown. -sclera

Identify each lettered part of the human eye shown. -aqueous humour

Light and Life

The Cell: an Overview

Energy and Enzymes

Cell Membranes and Signaling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

The Chromosomal Basis of Mendelian Inheritance

Genetic Linkage, Sex-Linkage, and Other Non-Mendelian Inheritance Mechanisms

DNA Structure, Replication, and Repair

Gene Structure Expression, and Mutation

Regulation of Gene Expression

Dna Technologies

Genomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Speciation and Macroevolution

Systematics and Phylogenetics: Revealing the Tree of Life

Humans and Evolution

Defining Life and Its Origins

Viruses, Viroids, and Prions: Infectious Biological Particles

Bacteria and Archaea

Protists

Fungi

Plants

Animals

Conservation of Biodiversity

Population Ecology

Species Interactions and Community Ecology

Ecosystems

Animal Behaviour

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Animal Nutrition

Gas Exchange: the Respiratory System

Internal Transport: the Circulatory System

Regulation of the Internal Environment: Water, Solutes, and Temperature

Control of Animal Processes: Endocrine Control

Animal Reproduction

Muscles, Skeletons, and Body Movements

Filters

A toxin interferes with the opening of Na⁺ channels in the postsynaptic membrane so that they open more slowly when bound to a neurotransmitter. What effect would there be on action potential formation in the postsynaptic membrane?