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Exam #2 TSAC 201
Stack #2
Question | Answer |
---|---|
T/F: When the elbow joint is held in full extension, the olecranon process and the epicondyles form a straight line. | True |
Which of the following forearm muscles is not involved in flexion of the wrist? | Pronator Teres |
Which of the following ligaments does not cross the elbow joint? | Ulnar collateral (transverse band) |
Which of the following ligaments surrounds the head of the radius and helps to maintain stability of the proximal radioulnar joint? | Annular |
A movement unique to the thumb that allows for grasping is known as | Opposition |
A muscle found just proximal to the wrist that is involved in the action that "turns down" the forearm and the palm of the hand is the | pronator quadratus |
Bands of tissue forming bridges over the carpal bones of the wrist under which the flexor and extensor tendons from the forearm run to the hand are known as the: | Retinacula |
T/F: Beneath the space known as the anatomical snuffbox lies the lunate carpal bone. | False |
Extension of the thumb is the function of the | Extensor pollicis longus |
T/F: Extension of the wrist primarily occurs at the radiocarpal joints. | False |
T/F: Flexion of the wrist occurs primarily at the radiocarpal joints. | True |
From the anatomical position, thumb abduction and adduction occur in the sagittal plane, while thumb flexion and extension take place in the | Frontal Plane |
In addition to the adductor pollicis and flexor pollicis brevis, which of the following muscles assists the thumb in gripping? | Opponens pollicis |
Including the thumb, how many interphalangeal joints are in one anatomically normal hand? | 9 |
The articulation between the wrist and the forearm occurs between the radius and the | Carpals |
T/F: The bands of tissue at the wrist that keep the flexor muscles and the extensor muscles from rising up under tension are known as the dorsal and volar aponeuroses. | False |
The distal row of carpal bones articulates with the | Metacarpals |
The dorsal interossei muscles perform which of the following metacarpophalangeal joint actions? | Abduction |
T/F: The extensor indicis extends the metacarpophalangeal, proximal interphalangeal, and distal interphalangeal joints of the middle finger. | False |
T/F: The lumbricales muscles assist with both flexion of the MP joints and extension of the PIP and DIP joints. | True |