Quiz
L20 Structure of Major Brain Areas, Basic Sensory and Motor Pathways
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Questions in this quiz (14)
1Choose the correct statements about the external anatomy of the brain.
- AThe central sulcus sits between the frontal and parietal lobes.
- BThe parieto-occipital sulcus is anterior to the central sulcus.
- CThe lateral sulcus is superior to the transverse fissure.
- DThe pre-central gyrus and the post-central gyrus sit on the parietal and frontal lobes respectively.
2Choose the incorrect statement about the function of the brain's lobes.
- AThe parietal lobe is primarily concerned with sensory information.
- BThe occipital lobe is primarily concerned with vision.
- CThe temporal lobe is associated with memory and hearing.
- DThe frontal lobe is primarily concerned with motor information.
3The [blank_start]frontal lobe[blank_end] is split into two regions, the [blank_start]pre-frontal cortex and the motor cortex[blank_end].
The motor cortex is split into two regions: the [blank_start]primary motor[blank_end] cortex which sits on the [blank_start]pre-central[blank_end] gyrus, and the [blank_start]pre-motor[blank_end] cortex, the anterior region of the motor cortex which [blank_start]plans movement[blank_end]. Together they control [blank_start]voluntary[blank_end] somatic efferent signals.
The pre-frontal cortex is involved in [blank_start]decision making, foresight, and emotion[blank_end]. [blank_start]Damage[blank_end] to it can result in a change of personality, and [blank_start]development[blank_end] of it can be altered by alcohol. It is abnormalities in this area which can cause personality altering mental illnesses such as [blank_start]schizophrenia[blank_end].- Afrontal lobe
- Bpre-frontal cortex and the motor cortex
- Cprimary motor
- Dpre-central
- Epost-central
- Fpre-motor
- Gvoluntary
- Hinvoluntary
- Iplans movement
- Jdecision making, foresight, and emotion
- KDamage
- Ldevelopment
- Mschizophrenia
4The diencephalon consists only of the thalamus and hypothalamus.
- ATrue
- BFalse
5The corpus callosum sits anterior to the thalamus/diencephalon.
- ATrue
- BFalse
6The regions of the brainstem, from most superior to most inferior, are:
- APons, midbrain, medulla oblongata
- BMidbrain, pons, medulla oblongata
- CMedulla oblongata, midbrain, pons
7The cerebral cortex (white matter) is superficial to grey matter of the brain.
- ATrue
- BFalse
8Choose the correct statements about the internal anatomy of the brain.
- ADeep collections of cell bodies (grey matter) are called deep nuclei.
- BThe 3 types of white matter are differentiated by orientation.
- CThe commissural tracts join the cerebral hemispheres. E.g. The corpus callosum
- DThe corticospinal tract is an association tract.
- EProjection tracts are communication pathways between regions of the same side of a cerebral hemisphere e.g. pre-motor and motor cortex pathway
9The primary motor cortex sits on the pre-central gyrus, and it's neurons have no specific organisation.
- ATrue
- BFalse
10Which statement about the corticospinal tract is false?
- AIt is a projection tract
- BIt contains efferent neuron cell bodies
- CMost of its fibres cross over to the opposite side of the body in the medulla oblongata
- DAxons synapse in the dorsal horn of the spinal cord
11Choose the incorrect statement about the somatosensory pathway
- AThe 'relay' neuron between the spinal cord and the thalamus resides in the medulla oblongata
- BThe flow of information crosses over to the opposite side when passing through the relay neuron, before ascending to the thalamus
- CThere is another synapse between the neuron from the thalamus and somatosensory cortex (in the parietal lobe)
- DThe mapping of the somatosensory cortex is the opposite to that of the motor cortex.
12The neurons in the somatosensory cortex have very short, or no axons, while the neurons in the motor cortex have relatively longer axons.
- ATrue
- BFalse
13The cerebellum [blank_start]integrates[blank_end] motor and sensory systems, [blank_start]coordinating[blank_end] movement guided by sensory feedback.
Firstly, the [blank_start]motor[blank_end] cortex initiates an AP for movement. This is copied/relayed to the [blank_start]cerebellum[blank_end]. Next, [blank_start]sensory[blank_end] information about the movement goes to the cerebellum. The cerebellum [blank_start]compares[blank_end] these sets of information, and [blank_start]adjusts[blank_end] the motor output (coordination).- Aintegrates
- Bcoordinating
- Cmotor
- Dcerebellum
- Esensory
- Fcompares
- Gadjusts
14Choose the incorrect statement about the basal ganglia
- AThere are 5 types of basal ganglia (groups of cell bodies in the brain)
- BThe substantia nigra are the basal ganglia which cause Parkinson's disease when they fail to function
- CThe basal ganglia are part of a circuit in a brain and their role is to select an appropriate movement
- DThe basal ganglia are not involved in initiation or termination of movement
Information
- Description
- Know the external anatomy of the brain, and the names of the regions of the brainstem Know the internal structures of the brain and the names for collections of cell bodies and different types of white matter tracts Know the anatomy of the main motor pathway for voluntary movement (corticospinal tract) Know the anatomy of the somatosensory pathway Understand the basic function of the cerebellum in integrating sensory+motor information
- Author
- Mer Scott
- Language
- English
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