Why Did the Smooth Muscle in Cultured Strips of Aorta

question 69

Multiple Choice

Why did the smooth muscle in cultured strips of aorta not respond to acetylcholine by relaxing, while the smooth muscle of aortic rings did?

• A)Smooth muscle cells in aortic strips are physically incapable of relaxing under any circumstances.
• B)Acetylcholine in the strips could not penetrate to the muscle cells while in the rings it could.
• C)Smooth muscle cells in aortic rings express acetylcholine receptors, while those in strips do not.
• D)The delicate endothelial layer in aortal strips had been rubbed away during dissection, while in aortal rings it remained intact.
• E)The endothelial layer in aortal strips was abnormally thickened, while in aortal rings it was not.

Identify the impact of enriched environments on brain development.

Grasp the significance of neural network development in infants and its dependency on sensory experiences.

Distinguish between nature and nurture influences on development.

Explain the principles of plasticity and its effects on brain function and adaptation.

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Definitions:

Adaptive Functioning

Refers to an individual's ability to effectively manage everyday tasks and challenges, including social and practical skills.

Mildly Retarded

An outdated and insensitive term formerly used to describe individuals with mild intellectual disability.

Mental Retardation

A term historically used to describe a condition characterized by significant limitations in intellectual functioning and adaptive behavior, now more commonly referred to as intellectual disability.

Education

The process of receiving or giving systematic instruction, especially at a school or university.