Upper Extremity Flashcards
What is the primary function of the rotator cuff muscles?
To stabilize the shoulder joint and allow for a wide range of motion.
True or False: The scapula is also known as the shoulder blade.
True
Fill in the blank: The ________ joint is primarily responsible for shoulder abduction.
glenohumeral
Which muscle is the main mover in shoulder flexion?
Anterior deltoid
What are the four muscles that make up the rotator cuff?
Supraspinatus, Infraspinatus, Teres Minor, Subscapularis
True or False: The biceps brachii assists in shoulder adduction.
False
What type of joint is the elbow?
Hinge joint
Multiple Choice: Which of the following muscles is responsible for elbow extension? A) Biceps B) Triceps C) Brachialis
B) Triceps
What is the role of the scapulothoracic joint?
To provide movement and stability to the shoulder girdle.
True or False: The wrist is composed of eight carpal bones.
True
Fill in the blank: The ________ muscle is primarily responsible for wrist flexion.
Flexor carpi radialis
What is the main action of the pectoralis major muscle?
Shoulder adduction and internal rotation.
Multiple Choice: Which of the following is NOT a function of the upper extremity? A) Manipulation B) Locomotion C) Communication
B) Locomotion
What are the two primary movements of the shoulder joint?
Flexion/extension and abduction/adduction.
True or False: The humerus is the bone of the upper arm.
True
What is the primary function of the trapezius muscle?
To move, rotate, and stabilize the scapula.
Fill in the blank: The ________ nerve innervates the deltoid muscle.
axillary
Which movement involves moving the arm away from the body?
Abduction
True or False: The ulna is located on the lateral side of the forearm.
False
What are the primary functions of the flexor muscles of the forearm?
To flex the wrist and fingers.
Multiple Choice: Which muscle is known for its role in shoulder external rotation? A) Subscapularis B) Infraspinatus C) Teres Major
B) Infraspinatus
What is the significance of the anatomical snuffbox?
It is a triangular depression on the lateral aspect of the wrist that contains important tendons and the radial artery.
Fill in the blank: The ________ joint allows for pronation and supination of the forearm.
radioulnar
What is the primary action of the latissimus dorsi muscle?
Shoulder extension, adduction, and internal rotation.
True or False: The radial nerve is responsible for wrist flexion.
False
What is the role of the forearm extensor muscles?
To extend the wrist and fingers.
