Wiley+ Chapter 12 Quiz A&P 1

Carefully study the diagram covering the answer. The situation in the diagram is most likely: 1 spatial summation 2 temporal summation a) 1 only b) 2 only c) neither of these choices

1 only

The cell body of what neuron(s) in this diagram is/are found in gray matter of the spinal cord? Cover the answer. A B unipolar neuron A & B A & C

A

Which diagram represents the type of circuit commonly used to send sensory signals to multiple areas of the brain? Cover answer. A B C or D

A; diverging circuit

In this diagram, which of these types of channels contributes to more potassium diffusing down their concentration gradient compared to sodium? Cover answer. A B C or D

A; leakage channel

In this diagram, where is a node of Ranvier? Cover the answer.

B

Which part of the neuron in this diagram produces proteins that can regenerate damaged axons in the PNS? Cover the answer. A B C E Both A and B

B; cell body

Which diagram represents the type of circuit involved in controlling the movement of the biceps brachii and triceps brachii skeletal muscles? Cover the answer. A B C or D

B; converging circuit

Which of the structures in this diagram contains a higher amount of voltage-gated sodium channels where action potentials are propagated? Cover the answer. A B C D or E

B; peripheral process

In this diagram, which of the channels is predominantly located on sensory neurons somas and dendrites and responds to vibration, touch, and stretch? Pick the best letter.

C (Mechanical Stimulus)

Which of the cells in this diagram sends electrical signals to glands, muscles and other neurons? Cover the answer. A B C D or F

C; neuron

Which diagram represents a circuit that helps coordinated muscular activities, breathing, and short-term memory? Cover the answer. A B C or D

C; reverberating circuit

Which of the labeled cells in the diagram is a neuroglial cell that can be found in gray or white matter and makes contact with blood capillaries, neurons and pia mater of brain and spinal cord? Cover answer. A B C D F

D; Fibrous astrocytes

Which diagram represents the type of circuit used to solve algorithms and geometry? Cover answer. A B C or D

D; parallel after-discharge circuit

In this diagram, which of these types of channels represents a gate that opens to a depolarizing event?

D; voltage-gated channel

Which part of the neuron in this diagram will contain voltage-gated ion channels? A B E F G

G; axolemma

Which of the following types of neurons is exclusively found in the cerebellum? bipolar neuron multipolar neuron Purkinje cells unipolar neuron pyramidal cells

Purkinje cells

The nervous system: works with the endocrine system to maintain homeostasis. communicates with the body via action potentials (nerve impulses). is responsible for perceptions and behaviors. initiates voluntary movements. all of these are correct.

all of these are correct

What is the function(s) of the nervous system? detecting stimuli processing information sending a response to muscles or glands all of these choices

all of these choices

The dendrites of a neuron do what? are the main receiving region of a neuron secrete neurotransmitters conduct impulses toward another neuron do not carry potentials, only axons do

are the main receiving region of a neuron

Plasticity means the ability to regenerate after being damaged. communicate by hormones convert stimulus into an action potential. change based on experience. stretch and recoil without damage.

change based on experience

Name the structural classification of this neuron labeled A Cover the answer. axon terminal trigger zone cell body peripheral process dendrites

dendrites

An excitatory neurotransmitter ______ the postsynaptic membrane. depolarizes repolarizes hyperpolarizes does not affect the polarity of creates a synaptic delay at

depolarizes

This type of neural circuit consists of a single presynaptic neuron synapsing with several postsynaptic neurons. Diverging circuit Converging circuit Reverberating circuit Parallel after-discharge circuit Simple series circuit

diverging circuit

A postsynaptic neuron responds to acetylcholine neurotransmitter by creating what? EPSP IPSP either EPSP or IPSP neither EPSP or IPSP

either EPSP or IPSP

Which is NOT true about the peripheral nervous system? it includes a somatic division that controls skeletal muscle it includes an enteric division that regulates the gastrointestinal tract it includes an autonomic division that regulates smooth and cardiac muscle it is only involved with unconscious (involuntary) activities it includes sensory and motor nerves

it is only involved with unconscious (involuntary) activities

Which of the following types of neurons is the most common type of neuron found in the brain and spinal cord? bipolar neuron multipolar neuron unipolar neuron pseudounipolar

multipolar neuron

Study the picture with your hand covering the answer. Which NERVE potential travels the longer distance in a typical sensation? graded potential nerve action potential both go approximately the distance

nerve action potential

What specific type of unipolar neuron detects a sharp pain? Choose your best answer out of the four listed. tactile epithelial cells (Merkel disc) corpuscle of touch (Meissner corpuscle) lamellated (Pacinian) corpuscle nociceptor

nociceptor

Which of the neurons is located deep in the dermis or hypodermis and detect deep pressure? corpuscle of touch nociceptor pacinian Corpuscle tactile epithelial cell

pacinian corpuscle

At a synapse, the neuron sending the signal towards the synapse is called the _______ neuron. presynaptic postsynaptic axodendritic axoaxonic

presynaptic

Diffusion, enzymatic degradation, and uptake by cells are all ways to remove a neurotransmitter stop a spatial summation continue a temporal summation inhibit a presynaptic potential excite a presynaptic potential

remove a neurotransmitter

The neuron labeled B in this diagram would be classified as what type of functional neuron? somatic sensory neuron special senses neuron motor neuron association neuron

special sense neuron

Which is NOT part of the central nervous system? brain spinal cord pyramidal cell spinal nerve astrocyte

spinal nerve

Which is NOT a sensory function of the nervous system? to detect a drop in external temperature to detect an increase in blood pH to cause a muscle to contract to send information to the central nervous system to send information to the spinal cord

to cause a muscle to contract

The generation of an action potential is an electrochemical event. This electrical event occurs: within the neuron only in nerves with neurolemma within the myelin sheath in microglia

within the neuron