The striatum has an (excitatory/inhibitory) connection to the globus pallidus external. Activation of that connection (increases/decreases) activity in the globus pallidus internal, ultimately (promoting/suppressing) movement. Group of answer choices Excitatory, increases, promoting Excitatory, increases, suppressing Inhibitory, decreases, promoting Inhibitory, decreases, suppressing Inhibitory, increases, suppressing
Cells and Tissues
The smallest, basic, and structural component of the body is a cell. It is the basic functional unit of life. No organism can exist on this Earth without a cell. Thus, it is the fundamental unit. These cells perform the major functions of the body. The term cell was given by Robert Hooke, who stated that all organisms’ bodies, whether unicellular or multicellular, are made of cells. In single-celled organisms such as amoeba and protozoa, all the body functions are performed by a single cell. The multicellular organisms have collective cells which perform a specific function in the body.
Types of Tissues
The smallest, basic, and structural component of the body is the cell. It is the functional unit of life. No organism can exist on this Earth without a cell. An organism's body, whether unicellular or multicellular, is made of cells. In unicellular organisms such as amoeba and protozoa, all the body functions are performed by a single cell. The multicellular organisms have collective cells which perform a specific function in the body. Tissues are a group of cells that work together to perform a particular function in the body. They make a series of networks or a system to coordinate with the different tissues in the body, forming a tissue system. The word tissue is derived from the Latin word 'weave.' Plants and animals have various kinds of tissue systems that differ in their work and composition according to the different requirements.
Tissue System
The smallest, basic, and structural component of the body is the cell. It is the functional unit of life. No organism can exist on this Earth without a cell. An organism's body, whether unicellular or multicellular, is made of cells. In unicellular organisms such as amoeba and protozoa, all the body functions are performed by a single cell. The multicellular organisms have collective cells which perform a specific function in the body. Tissues are a group of cells that work together to perform a particular function in the body. They make a series of networks or a system to coordinate with the different tissues in the body, forming a tissue system. The word tissue is derived from the Latin word 'weave.' Plants and animals have various kinds of tissue systems that differ in their work and composition according to the different requirements.
The striatum has an (excitatory/inhibitory) connection to the globus pallidus external. Activation of that connection (increases/decreases) activity in the globus pallidus internal, ultimately (promoting/suppressing) movement.
Group of answer choices
Excitatory, increases, promoting
Excitatory, increases, suppressing
Inhibitory, decreases, promoting
Inhibitory, decreases, suppressing
Inhibitory, increases, suppressing
Is my reasoning correct?
basal ganglia circuitry:
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The striatum (caudate nucleus and putamen) sends inhibitory projections to the globus pallidus externus (GPe). Therefore, the connection between the striatum and GPe is inhibitory.
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The GPe sends inhibitory projections to the subthalamic nucleus (STN).
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The STN sends excitatory projections to the globus pallidus internus (GPi).
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The GPi, in turn, sends inhibitory projections to the thalamus.
When the striatum activates its connection to the GPe (due to receiving excitatory input from the cortex), it inhibits the GPe. This reduces the inhibitory influence of the GPe on the STN, which means the STN becomes more active and sends more excitatory signals to the GPi. This results in the GPi increasing its inhibitory output to the thalamus. Since the thalamus sends excitatory projections to the cortex to promote movement, increased inhibition of the thalamus suppresses movement.
Based on this explanation:
- The striatum has an inhibitory connection to the globus pallidus external.
- Activation of that connection increases activity in the globus pallidus internal.
- This ultimately suppresses movement.
So, the correct group of answer choices is: Inhibitory, increases, suppressing.
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