Kinesiology & Biomechanics Flashcards
7 cards from real LMT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Kinesiology & Biomechanics flashcards as text
During the lowering phase of a biceps curl, what type of contraction is the biceps brachii performing?
Answer: Eccentric
The biceps lengthens under tension to control the descent of the weight, which is an eccentric contraction.
Which muscle is the prime mover for hip flexion?
Answer: Iliopsoas
The iliopsoas (psoas major and iliacus) is the strongest and primary hip flexor.
Movement of a body part toward the midline in the frontal plane is called what?
Answer: Adduction
Adduction brings a segment toward the midline of the body in the frontal plane.
Which type of synovial joint is the atlantoaxial joint between C1 and C2?
Answer: Pivot
The dens of the axis rotates within the ring of the atlas, forming a pivot joint that allows head rotation.
Which muscle laterally rotates the humerus and is part of the rotator cuff?
Answer: Infraspinatus
Infraspinatus (with teres minor) laterally rotates the humerus, while subscapularis medially rotates it.
Wheelbarrow, nutcracker, and the calf raise (plantar flexion on the toes) are classic examples of which lever class?
Answer: Second-class
In a second-class lever, the load lies between the fulcrum and the effort, giving mechanical advantage.
Which nerve innervates the deltoid muscle?
Answer: Axillary nerve
The axillary nerve (C5-C6) innervates the deltoid and teres minor.