Bachelor of Biomedical Engineering Flashcards
7 cards from real BE/B Eng Bachelor of Engineering practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Bachelor of Biomedical Engineering flashcards as text
Which type of signal processing technique is most commonly used to remove power-line interference (60 Hz noise) from an ECG signal?
Answer: Notch filter
A notch (band-stop) filter is designed to attenuate a very narrow frequency band, making it ideal for removing 60 Hz power-line interference while preserving the rest of the ECG signal.
In a biomechanical analysis of the knee joint, the medial collateral ligament (MCL) primarily resists which type of force?
Answer: Valgus (abduction) stress
The MCL is a ligament on the medial side of the knee and primarily resists valgus stress, which is the outward bending force applied at the knee.
Which FDA regulatory pathway is typically used for a Class II medical device that is substantially equivalent to a legally marketed predicate device?
Answer: 510(k) Premarket Notification
The 510(k) pathway allows a manufacturer to demonstrate that a new Class II device is substantially equivalent to a predicate device already on the market, avoiding the full PMA process.
What is the primary role of surfactant in the lungs from a biofluid mechanics perspective?
Answer: Reducing alveolar surface tension to prevent alveolar collapse
Pulmonary surfactant reduces surface tension at the air-liquid interface within alveoli, preventing their collapse (atelectasis) during exhalation.
In tissue engineering, what is the function of a scaffold?
Answer: To provide a three-dimensional structure that supports cell attachment and tissue formation
A scaffold provides a temporary three-dimensional framework that mimics the extracellular matrix, enabling cells to attach, proliferate, and organize into functional tissue.
The Nernst equation is used in bioelectrical engineering to calculate what?
Answer: The equilibrium potential for a specific ion across a membrane
The Nernst equation calculates the electrochemical equilibrium potential (reversal potential) for a single ion species based on its concentration gradient across a membrane and the temperature.
In medical imaging, what does 'spatial resolution' refer to?
Answer: The ability of a system to detect the smallest resolvable detail or distance between two objects
Spatial resolution describes the minimum separation distance at which two distinct objects or features can be distinguished as separate entities within an image.