L3 Autonomic Nervous System

Questão 1 de 11

1

There are two main nervous systems, the ❌. The ❌ nervous system is further divided into the somatic, autonomic, and enteric systems.
The ANS is divided into:
1. ❌ nervous system - mobilises the body’s nervous system fight-or-flight response; it is also constantly active at a basal level to maintain homeostasis.
2. ❌ nervous system - regulates organ and gland functions during rest and is considered a slowly activated, dampening system(rest and digest, feed and breed).

Arraste e solte para completar o texto.

central and the peripheral

peripheral

Sympathetic

Parasympathetic

Explicação

Questão 2 de 11

1

The autonomic nervous system (ANS) is located in the hypothalamus, and the medulla oblongata acts to integrate autonomic function after receiving feedback.

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 3 de 11

1

Choose the two correct statements.

Selecione uma ou mais das seguintes:

The SNS leaves the spine at thoracic and lumbar regions.
The PNS leaves the spine at thoracic and lumbar regions.
The SNS leaves the spine at cranial and sacral regions.
The PNS leaves the spine at cranial and sacral regions.

Explicação

Questão 4 de 11

1

Everything done in the nervous system involves 3 fundamental steps:
1. A sensory function detects internal and external ❌
2. An ❌ is made (analysis)
3. A ❌ occurs (reaction)
Three main types of neurons take part in this process:
• ❌ neurons carry signals from the outer parts of your body (periphery) into the central nervous system. This makes them ❌.
• Interneurons connect various neurons ❌ the brain and spinal cord (entirely within the ❌).
• ❌ neurons carry signals from the central nervous system to the outer parts (muscles, skin, glands) of your body. This makes them ❌.

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stimuli

interpretation

motor response

Sensory

afferent

within

CNS

efferent

Motor

Explicação

Questão 5 de 11

1

An AP has two main phases, depolarizing and repolarizing.
After depolarisation occurs above a ❌ potential, an ❌ potential occurs. There is then a ❌ period, where the neuron cannot be ❌, followed by repolarisation to the ❌ potential.

Arraste e solte para completar o texto.

threshold

action

refractory

re-stimulated

resting membrane

Explicação

Questão 6 de 11

1

Signal transmission at the synapse is a one-way transfer from a presynaptic neuron to a postsynaptic neuron, which turns an electric signal into a chemical signal. Labelnof transmission across a synapse from 1 to 6.

❌. The neurotransmitter binds to ligand-gated receptors on the postsynaptic membrane.
❌. Voltage-gated Ca2+ channels open and Ca2+ flows inward to the presynaptic neuron.
❌. The neurotransmitter crosses the synaptic cleft.
❌. Ca2+ influx triggers release of the neurotransmitter.
❌. AP reaches the end bulb of axon terminals.
❌. The postsynaptic neuron receives the chemical signal and in
turn generates an electrical signal (postsynaptic potential).

Arraste e solte para completar o texto.

1

5

2

4

3

6

Explicação

Questão 7 de 11

1

A neurotransmitter (chemical) can be excitatory, inhibitory, or both(in different locations).

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 8 de 11

1

Many neuronal cell bodies are called a ❌. Many ❌ form a ❌.

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ganglion

ganglia

plexus

Explicação

Questão 9 de 11

1

Choose the correct statements.

Selecione uma ou mais das seguintes:

Both the parasympathetic and sympathetic divisions are two-neuron systems.
Both the parasympathetic and sympathetic divisions are one-neuron systems.
The somatic NS is a one-neuron system.
The somatic NS is a one two-neuron system.

Explicação

Questão 10 de 11

1

In the PNS, the neurotransmitter ❌ is released at both synapses.
In the SNS, ❌ is released at the presynaptic neuron and ❌ is released at the postsynaptic neuron.
ACh binds to ❌ receptors. Norepinephrine/epinephrine binds to ❌ receptors.

Arraste e solte para completar o texto.

acetylcholine (ACh)

ACh

norepinephrine/epinephrine

muscarinic and nicotinic

adrenergic alpha or beta

Explicação

Questão 11 de 11

1

Chose the correct statement.

Selecione uma das seguintes:

Alpha and beta adrenergic receptors are G-protein coupled.
Muscarinic receptors are ligand gated.
Nicotinic receptors are G-protein coupled.

	Criado por Mer Scott mais de 5 anos atrás

L3 Autonomic Nervous System

Questão 1 de 11

Arraste e solte para completar o texto.

Explicação

Questão 2 de 11

The autonomic nervous system (ANS) is located in the hypothalamus, and the medulla oblongata acts to integrate autonomic function after receiving feedback.

Selecione uma das opções:

Explicação

Questão 3 de 11

Choose the two correct statements.

Selecione uma ou mais das seguintes:

Explicação

Questão 4 de 11

Arraste e solte para completar o texto.

Explicação

Questão 5 de 11

An AP has two main phases, depolarizing and repolarizing. After depolarisation occurs above a ❌ potential, an ❌ potential occurs. There is then a ❌ period, where the neuron cannot be ❌, followed by repolarisation to the ❌ potential.

Arraste e solte para completar o texto.

Explicação

Questão 6 de 11

Arraste e solte para completar o texto.

Explicação

Questão 7 de 11

A neurotransmitter (chemical) can be excitatory, inhibitory, or both(in different locations).

Selecione uma das opções:

Explicação

Questão 8 de 11

Many neuronal cell bodies are called a ❌. Many ❌ form a ❌.

Arraste e solte para completar o texto.

Explicação

Questão 9 de 11

Choose the correct statements.

Selecione uma ou mais das seguintes:

Explicação

Questão 10 de 11

In the PNS, the neurotransmitter ❌ is released at both synapses. In the SNS, ❌ is released at the presynaptic neuron and ❌ is released at the postsynaptic neuron. ACh binds to ❌ receptors. Norepinephrine/epinephrine binds to ❌ receptors.

Arraste e solte para completar o texto.

Explicação

Questão 11 de 11

Chose the correct statement.

Selecione uma das seguintes:

Explicação

An AP has two main phases, depolarizing and repolarizing.
After depolarisation occurs above a ❌ potential, an ❌ potential occurs. There is then a ❌ period, where the neuron cannot be ❌, followed by repolarisation to the ❌ potential.

In the PNS, the neurotransmitter ❌ is released at both synapses.
In the SNS, ❌ is released at the presynaptic neuron and ❌ is released at the postsynaptic neuron.
ACh binds to ❌ receptors. Norepinephrine/epinephrine binds to ❌ receptors.