Anatomy & Physiology Flashcards
7 cards from real OT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Anatomy & Physiology flashcards as text
Which anatomical landmark is used to locate the median nerve at the wrist for carpal tunnel assessment?
Answer: Palmaris longus tendon
The median nerve lies just radial (lateral) to the palmaris longus tendon at the wrist; this tendon serves as a reliable surface landmark for nerve localization.
During normal gait, which phase accounts for approximately 60% of the gait cycle?
Answer: Stance phase
Stance phase (foot contact with ground) comprises approximately 60% of the gait cycle, while swing phase accounts for the remaining 40%.
Which part of the nephron is primarily responsible for reabsorption of glucose and amino acids?
Answer: Proximal convoluted tubule
The proximal convoluted tubule reabsorbs approximately 65% of filtered sodium, water, glucose, and amino acids via active transport mechanisms.
A client with lateral epicondylitis has pain with which motion that stretches the common extensor origin?
Answer: Wrist flexion with elbow extension
Wrist flexion with elbow extension places maximal tension on the common extensor tendon origin at the lateral epicondyle, provoking pain in lateral epicondylitis.
Which structure connects the two cerebral hemispheres and is critical for interhemispheric communication?
Answer: Corpus callosum
The corpus callosum is the largest white matter commissure, containing approximately 200–300 million axons that relay information between the left and right cerebral hemispheres.
Which vertebral level corresponds to the umbilicus dermatome, useful for assessing thoracic spinal cord injury?
Answer: T10
The T10 dermatome corresponds to the umbilicus level; preservation of sensation here indicates at least partial thoracic cord function at T10.
The hypothalamus regulates body temperature primarily through which effector mechanism during overheating?
Answer: Activating sweat glands and cutaneous vasodilation
When core temperature rises, the hypothalamus activates eccrine sweat glands and promotes cutaneous vasodilation to dissipate heat through evaporation and radiation.