Anatomy and Physiology Flashcards
6 cards from real AFAA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Anatomy and Physiology flashcards as text
What does the term 'agonist' refer to in muscle action?
Answer: The muscle primarily responsible for a movement
The agonist (prime mover) is the muscle most responsible for producing a specific movement.
Which type of contraction occurs when a muscle produces force while lengthening?
Answer: Eccentric
Eccentric contraction involves the muscle generating tension while lengthening, such as lowering a weight slowly.
The cardiovascular response known as 'cardiac output' is calculated as:
Answer: Heart rate × stroke volume
Cardiac output (Q) equals heart rate multiplied by stroke volume, representing total blood pumped per minute.
Which bone forms the heel of the foot?
Answer: Calcaneus
The calcaneus is the largest tarsal bone and forms the prominence of the heel.
Which neuromuscular receptor detects changes in muscle length and triggers the stretch reflex?
Answer: Muscle spindle
Muscle spindles sense changes in muscle length and rate of stretch, initiating a reflexive contraction.
What does VO2 max measure?
Answer: Maximum rate of oxygen consumption during exercise
VO2 max is the highest rate at which the body can consume oxygen during maximal exertion and is a key indicator of cardiovascular fitness.