Under Typical Circumstances,what Happens to the Primitive Reflexes,such as the Palmar

question 59

Multiple Choice

Under typical circumstances,what happens to the primitive reflexes,such as the palmar grasp?

• A) They are present at birth and then disappear within a few months after birth.
• B) They are present at birth and do not disappear until a child reaches preschool age.
• C) They are not present at birth and appear sometime in the first 3-6 months; disappearing by 1 year of age.
• D) They are present at birth and never disappear.

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Definitions:

Somatosensory Areas

Regions of the brain that process sensory information from across the body, such as touch, temperature, and pain.

Respiration

The process of inhaling and exhaling air to facilitate the exchange of oxygen and carbon dioxide within the body's cells.

Depolarized

A state in which sodium ions flow to the inside of the cell membrane, making the outside less positive. Depolarization occurs when a neuron responds to stimuli such as heat, pressure, or chemicals.

Nerve Impulse

Electrochemical messages transmitted from neurons to other neurons and effectors.