This brachialis anatomy quiz will test your knowledge of this muscle’s insertion, origin, action (function), and more. While there are over 650 muscles in the human body, the brachialis is one of the larger muscles that you’ll want to know for your anatomy exams.
Before taking this free quiz on the brachialis muscle, you might want to review the brachialis anatomy video, or view our brachialis notes.
Brachialis Anatomy Quiz
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Brachialis Quiz
1. Where is the brachialis located?
a. The posterior compartment of the arm
b. The anterior compartment of the arm
c. The lower leg
d. The anterior compartment of the thigh
The answer is b. The brachialis is located in the anterior compartment of the arm, and it inserts into the ulnar tuberosity and coronoid process of the ulna.
2. The brachialis is supplied by which nerve(s)?
a. The musculocutaneous nerve
b. The radial nerve
c. Both a and b
d. None of the above
The answer is c. The brachialis muscle is innervated primarily by the musculocutaneous nerve. However, it is also innervated by the radial nerve.
3. The word or prefix “brachi” means what?
a. Related to the foot
b. Related to the arm
c. Related to the finger
d. Something is “large”
The answer is b, arm. This word refers to something in or around the arm, so that should help you identify the approximate location of anatomical terms with this prefix.
4. The major function of the brachialis is to flex the elbow joint.
a. True
b. False
The answer is a, true. The major function of the brachialis is elbow flexion, bringing the forearm closer to the arm by pulling on the ulna.
5. Which statement about the brachialis muscle is incorrect?
a. The brachialis muscle is a synergist (helper) to the biceps brachii.
b. The brachialis muscle causes forearm flexion (also called elbow flexion).
c. The brachialis muscle is innervated by the musculocutaneous nerve.
d. The brachialis muscle originates at the coracoid process of the scapula.
The answer is d. The brachialis muscle originates from the anterior surface of the humerus bone, not the coracoid process of the scapula.
6. Where does the brachialis muscle originate?
a. The ulnar tuberosity
b. The coranoid process of the ulna
c. The anterior surface of the humerus
d. The posterior surface of the humerus
The answer is c. The brachialis muscle originates from the anterior surface of the humerus bone.
7. Where does the brachialis muscle insert?
a. The ulnar tuberosity
b. The coranoid process of the ulna
c. The anterior surface of the humerus
d. The posterior surface of the humerus
e. Both a and b
The answer is e. The brachialis muscle inserts into the ulnar tuberosity and the coronoid process.
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