L20 Structure of Major Brain Areas, Basic Sensory and Motor Pathways

Pregunta 1 de 14

1

Choose the correct statements about the external anatomy of the brain.

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The central sulcus sits between the frontal and parietal lobes.
The parieto-occipital sulcus is anterior to the central sulcus.
The lateral sulcus is superior to the transverse fissure.
The pre-central gyrus and the post-central gyrus sit on the parietal and frontal lobes respectively.

Explicación

Pregunta 2 de 14

1

Choose the incorrect statement about the function of the brain's lobes.

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The parietal lobe is primarily concerned with sensory information.
The occipital lobe is primarily concerned with vision.
The temporal lobe is associated with memory and hearing.
The frontal lobe is primarily concerned with motor information.

Explicación

Pregunta 3 de 14

1

The ❌ is split into two regions, the ❌.
The motor cortex is split into two regions: the ❌ cortex which sits on the ❌ gyrus, and the ❌ cortex, the anterior region of the motor cortex which ❌. Together they control ❌ somatic efferent signals.
The pre-frontal cortex is involved in ❌. ❌ to it can result in a change of personality, and ❌ of it can be altered by alcohol. It is abnormalities in this area which can cause personality altering mental illnesses such as ❌.

Arrastra y suelta para completar el texto.

frontal lobe

pre-frontal cortex and the motor cortex

primary motor

pre-central

post-central

pre-motor

voluntary

involuntary

plans movement

decision making, foresight, and emotion

Damage

development

schizophrenia

Explicación

Pregunta 4 de 14

1

The diencephalon consists only of the thalamus and hypothalamus.

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VERDADERO
FALSO

Explicación

Pregunta 5 de 14

1

The corpus callosum sits anterior to the thalamus/diencephalon.

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VERDADERO
FALSO

Explicación

Pregunta 6 de 14

1

The regions of the brainstem, from most superior to most inferior, are:

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Pons, midbrain, medulla oblongata
Midbrain, pons, medulla oblongata
Medulla oblongata, midbrain, pons

Explicación

Pregunta 7 de 14

1

The cerebral cortex (white matter) is superficial to grey matter of the brain.

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VERDADERO
FALSO

Explicación

Pregunta 8 de 14

1

Choose the correct statements about the internal anatomy of the brain.

Selecciona una o más de las siguientes respuestas posibles:

Deep collections of cell bodies (grey matter) are called deep nuclei.
The 3 types of white matter are differentiated by orientation.
The commissural tracts join the cerebral hemispheres. E.g. The corpus callosum
The corticospinal tract is an association tract.
Projection tracts are communication pathways between regions of the same side of a cerebral hemisphere e.g. pre-motor and motor cortex pathway

Explicación

Pregunta 9 de 14

1

The primary motor cortex sits on the pre-central gyrus, and it's neurons have no specific organisation.

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VERDADERO
FALSO

Explicación

Pregunta 10 de 14

1

Which statement about the corticospinal tract is false?

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It is a projection tract
It contains efferent neuron cell bodies
Most of its fibres cross over to the opposite side of the body in the medulla oblongata
Axons synapse in the dorsal horn of the spinal cord

Explicación

Pregunta 11 de 14

1

Choose the incorrect statement about the somatosensory pathway

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The 'relay' neuron between the spinal cord and the thalamus resides in the medulla oblongata
The flow of information crosses over to the opposite side when passing through the relay neuron, before ascending to the thalamus
There is another synapse between the neuron from the thalamus and somatosensory cortex (in the parietal lobe)
The mapping of the somatosensory cortex is the opposite to that of the motor cortex.

Explicación

Pregunta 12 de 14

1

The neurons in the somatosensory cortex have very short, or no axons, while the neurons in the motor cortex have relatively longer axons.

Selecciona uno de los siguientes:

VERDADERO
FALSO

Explicación

Pregunta 13 de 14

1

The cerebellum ❌ motor and sensory systems, ❌ movement guided by sensory feedback.
Firstly, the ❌ cortex initiates an AP for movement. This is copied/relayed to the ❌. Next, ❌ information about the movement goes to the cerebellum. The cerebellum ❌ these sets of information, and ❌ the motor output (coordination).

Arrastra y suelta para completar el texto.

integrates

coordinating

motor

cerebellum

sensory

compares

adjusts

Explicación

Pregunta 14 de 14

1

Choose the incorrect statement about the basal ganglia

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There are 5 types of basal ganglia (groups of cell bodies in the brain)
The substantia nigra are the basal ganglia which cause Parkinson's disease when they fail to function
The basal ganglia are part of a circuit in a brain and their role is to select an appropriate movement
The basal ganglia are not involved in initiation or termination of movement

	Creado por Mer Scott hace más de 7 años