Question 1

The gap between one neuron's axon and a dendrite or cell body of another neuron is part of the:

Accepted Answer

The gap between one neuron's axon and a dendrite or cell body of another neuron is called a synapse. The synapse is the point where two neurons communicate with each other by transmitting chemical signals called neurotransmitters.

Question 2

Anne has difficulty moving her arm when it is stimulated.Specifically,the brain receives the stimulation,and it and the spinal cord are functioning normally.Which type of neuron is probably affected?

Accepted Answer

Motor neurons are responsible for carrying signals from the brain and spinal cord to muscles, allowing for movement. If Anne is having difficulty moving her arm, it suggests that her motor neurons may be affected.

Question 3

When a patient has multiple sclerosis,the patient cannot easily transmit information from neuron to neuron,which leads to difficulties with movement.The transmission of neurons is slowed down as a result of a deteriorating:

Accepted Answer

The myelin sheath, a fatty coating that surrounds the axon, is responsible for speeding up the transmission of neurons. In the case of multiple sclerosis, the myelin sheath deteriorates, resulting in slowed down transmission and difficulties with movement.

Question 4

_____ work together in small circuits to perform simple tasks.

Accepted Answer

Interneurons work together in small circuits to perform simple tasks, such as reflexes. Sensory neurons detect stimuli and send signals to the central nervous system, while motor neurons carry signals from the central nervous system to muscles or glands. Vagal neurons are a specific type of nerve that helps regulate the body's organs.

Question 5

The myelin wrapped around an axon serves:

Accepted Answer

The myelin wrapped around an axon serves to increase the efficiency of transmission of the neuron. This is because the myelin acts as an insulator, preventing the dissipation of electrical signals as they travel along the axon. This speeds up the transmission of impulses along the axon.

Question 6

The synapse is the junction between:

Accepted Answer

The synapse is the junction between the axon of one neuron and the dendrites of another where neurotransmitters are released and received to transmit signals between neurons. Therefore, the best choice is D which describes this specific junction.

Question 7

Motor neurons carry signals from the:

Accepted Answer

Motor neurons carry signals from the spinal cord to the muscles, causing them to contract or relax. This allows for voluntary movement and control of bodily actions.

Question 8

A copper wire is to rubber insulation as a(n)_____ is to a _____.

Accepted Answer

The myelin sheath acts as insulation for axons in the same way that rubber insulation covers and protects a copper wire.

Question 9

Loss of feeling in the limbs,partial blindness,and difficulty in coordinated movement may indicate a(n)_____ disease such as _____.

Accepted Answer

Loss of feeling in the limbs, partial blindness, and difficulty in coordinated movement all point towards a neurological disorder. Atherosclerotic and Alzheimer's disease are not typically associated with these symptoms, whereas Parkinson's disease may involve some coordination difficulties, but not typically loss of feeling. Multiple sclerosis is a demyelinating disease that can affect various parts of the nervous system and cause these symptoms.

Question 10

Which type of neuron receives information from the external world and conveys this information to the brain?

Accepted Answer

Sensory neurons have specialized receptor cells that receive input from the environment (such as light, sound, touch, taste, or smell) and convert it into neural signals that are conveyed to the brain. Motor neurons, on the other hand, transmit commands from the brain to muscles and glands, while interneurons link sensory and motor neurons and help integrate information in the brain. Purkinje neurons are a type of interneuron found in the cerebellum that play a role in motor coordination and learning.

Question 11

The myelin sheath is analogous to which piece of electronic equipment?

Accepted Answer

The myelin sheath is similar to wire insulation because it covers the axon of a neuron and provides insulation for the electrical impulses traveling through it, preventing cross-talk or interference with neighboring neurons.

Question 12

Olfactory receptor neurons in the nose that detect chemical odorants are examples of:

Accepted Answer

Olfactory receptor neurons are sensory neurons that detect chemical odorants.

Question 13

The insulating layer of fatty material that covers the axon of many neurons is called the:

Accepted Answer

The insulating layer of fatty material that covers the axon of many neurons is called the myelin sheath. The myelin sheath serves to increase the speed of neural impulses and allows for more efficient communication between neurons.

Question 14

The majority of the neurons in the nervous system are:

Accepted Answer

Interneurons make up the majority of neurons in the nervous system. These neurons act as connectors between sensory and motor neurons, allowing for communication and processing of information within the nervous system.

Question 15

The neurons that receive information from the external world and convey information through the spinal cord are called:

Accepted Answer

Sensory neurons are responsible for receiving information from external stimuli and transmitting it through the spinal cord to the brain for processing. Motor neurons, on the other hand, transmit signals from the brain to the muscles for movement. Interneurons are found within the spinal cord and are responsible for relaying signals between sensory and motor neurons. Bipolar neurons are a type of sensory neuron found in the retina of the eye.

Question 16

Annette has difficulty moving her arm when it is stimulated.Specifically,the spinal cord never receives the message from pressure detectors in the skin.Which type of neuron is probably affected?

Accepted Answer

Sensory neurons are responsible for detecting stimuli from the environment and transmitting that information to the central nervous system. In this scenario, the pressure detectors in the skin are not able to send a message to the spinal cord, suggesting that the sensory neurons are affected.

Question 17

Which structures occur MOST often in the human brain?

Accepted Answer

The answer of Which structures occur MOST often in the...

Question 18

Which sequence shows components of neurotransmission in order of most to least abundant in the human brain?

Accepted Answer

Synapses are the most abundant component of neurotransmission in the brain, as they are the site of communication between neurons. Glial cells are also abundant, serving to support and protect neurons, while neurons are the least abundant component, as they are the specialized cells that transmit electrical and chemical signals in the brain. Therefore, the correct order is synapses, glial cells, neurons, making option B the correct choice.

Question 19

_____ endings in our eyes are sensitive to light.

Accepted Answer

Sensory neurons are responsible for detecting stimuli, which includes light for our eyes. The other choices, interneurons, motor neurons, and Purkinje neurons, do not have primary roles in detecting light.

Question 20

_____ carry signals from the spinal cord to the muscles.

Accepted Answer

Motor neurons carry signals from the spinal cord to the muscles, allowing for movement and other motor functions. Interneurons transmit signals within the spinal cord, while sensory neurons carry signals from the body's sensory organs to the spinal cord and brain for processing. Purkinje neurons are found in the cerebellum and are involved in motor coordination.

Quiz 3: Neuroscience and Behavior

The gap between one neuron's axon and a dendrite or cell body of another neuron is part of the:

Anne has difficulty moving her arm when it is stimulated.Specifically,the brain receives the stimulation,and it and the spinal cord are functioning normally.Which type of neuron is probably affected?

When a patient has multiple sclerosis,the patient cannot easily transmit information from neuron to neuron,which leads to difficulties with movement.The transmission of neurons is slowed down as a result of a deteriorating:

_____ work together in small circuits to perform simple tasks.

The myelin wrapped around an axon serves:

The synapse is the junction between:

Motor neurons carry signals from the:

A copper wire is to rubber insulation as a(n) _ is to a _.

Loss of feeling in the limbs,partial blindness,and difficulty in coordinated movement may indicate a(n) _ disease such as _.

Which type of neuron receives information from the external world and conveys this information to the brain?

The myelin sheath is analogous to which piece of electronic equipment?

Olfactory receptor neurons in the nose that detect chemical odorants are examples of:

The insulating layer of fatty material that covers the axon of many neurons is called the:

The majority of the neurons in the nervous system are:

The neurons that receive information from the external world and convey information through the spinal cord are called:

Annette has difficulty moving her arm when it is stimulated.Specifically,the spinal cord never receives the message from pressure detectors in the skin.Which type of neuron is probably affected?

Which structures occur MOST often in the human brain?

Which sequence shows components of neurotransmission in order of most to least abundant in the human brain?

_____ endings in our eyes are sensitive to light.

_____ carry signals from the spinal cord to the muscles.

Quiz 3: Neuroscience and Behavior

The gap between one neuron's axon and a dendrite or cell body of another neuron is part of the:

Anne has difficulty moving her arm when it is stimulated.Specifically,the brain receives the stimulation,and it and the spinal cord are functioning normally.Which type of neuron is probably affected?

When a patient has multiple sclerosis,the patient cannot easily transmit information from neuron to neuron,which leads to difficulties with movement.The transmission of neurons is slowed down as a result of a deteriorating:

_____ work together in small circuits to perform simple tasks.

The myelin wrapped around an axon serves:

The synapse is the junction between:

Motor neurons carry signals from the:

A copper wire is to rubber insulation as a(n) _____ is to a _____.

Loss of feeling in the limbs,partial blindness,and difficulty in coordinated movement may indicate a(n) _____ disease such as _____.

Which type of neuron receives information from the external world and conveys this information to the brain?

The myelin sheath is analogous to which piece of electronic equipment?

Olfactory receptor neurons in the nose that detect chemical odorants are examples of:

The insulating layer of fatty material that covers the axon of many neurons is called the:

The majority of the neurons in the nervous system are:

The neurons that receive information from the external world and convey information through the spinal cord are called:

Annette has difficulty moving her arm when it is stimulated.Specifically,the spinal cord never receives the message from pressure detectors in the skin.Which type of neuron is probably affected?

Which structures occur MOST often in the human brain?

Which sequence shows components of neurotransmission in order of most to least abundant in the human brain?

_____ endings in our eyes are sensitive to light.

_____ carry signals from the spinal cord to the muscles.

A copper wire is to rubber insulation as a(n) _ is to a _.

Loss of feeling in the limbs,partial blindness,and difficulty in coordinated movement may indicate a(n) _ disease such as _.