A type of reflex that helps maintain upright posture is the ______.Multiple choice question.tendon reflexpatellar reflexwithdrawal reflex

The correct answer to the question is the tendon reflex.

Explanation:

The tendon reflex, specifically the stretch reflex, is primarily involved in maintaining an upright posture by responding to changes in muscle length. This reflex helps to stabilize joints and maintain posture by adjusting muscle tension. In contrast, the patellar reflex (kneecap reflex) is a specific example of a tendon reflex, and the withdrawal reflex (flexor reflex) is an involuntary reaction to a harmful stimulus, functioning to protect the body from injury rather than maintaining posture. Thus, among the provided options, the tendon reflex is the one that most directly relates to maintaining an upright posture.