NBCE PART 1 - GENERAL ANATOMY EXAM LATEST 2025/2026 ACTUAL EXAM
200+ QUESTIONS AND CORRECT DETAILED ANSWERS PLUS RATIONALES
Question 1
What is the name of the groove located specifically between the greater and lesser tubercles of
the humerus?
A) Brachial groove
B) Musculospiral groove
C) Intertubercular groove
D) Trochlear notch
E) Olecranon fossa
Correct Answer: C) Intertubercular groove
Rationale: The intertubercular groove (also known as the bicipital groove) is a furrow
between the greater and lesser tubercles. It serves as a passage for the tendon of the long
head of the biceps brachii muscle and is a critical landmark in humeral anatomy.
Question 2
Which group of muscles primarily arises from the lateral epicondyle of the humerus?
A) Flexors of the forearm
B) Extensors of the forearm
C) Adductors of the shoulder
D) Pronators of the hand
E) Abductors of the digit
Correct Answer: B) extensors of the forearm
Rationale: The lateral epicondyle serves as the common origin for the extensor muscles of
the forearm (e.g., extensor carpi radialis, extensor digitorum). Conversely, the medial
epicondyle is the origin for the flexor group.
Question 3
The anconeal process is located at the proximal end of which of the following structures?
A) Radial head
B) Trochlear notch of the ulna
C) Scapular spine
D) Tibial tuberosity
E) Humeral condyle
Correct Answer: B) trochlear notch of the ulna
Rationale: The anconeal process is a sharp, proximal projection of the ulna that fits into the
olecranon fossa of the humerus when the elbow is extended. It is a common site for
"Ununited Anconeal Process" (UAP) in certain large breeds.
Question 4
In anatomical and clinical terms, the word "carpus" designates all of the following EXCEPT:
A) The individual carpal bones
B) The compound joint between the carpal bones
, 2
C) The region between the forearm and the metacarpus
D) The proximal row of tarsal bones
E) The clinical "wrist" area
Correct Answer: D) The proximal row of tarsal bones
Rationale: The carpus refers exclusively to the set of bones and joints between the
radius/ulna and the metacarpals. The tarsus refers to the corresponding region in the pelvic
limb (the ankle/hock).
Question 5
What is the shelf of the distal phalanx that covers the root of the claw or nail?
A) Ungual process
B) Extensor process
C) Ungual crest
D) Sole plate
E) Flexor tuberosity
Correct Answer: C) ungual crest
Rationale: The ungual crest is a thin shelf of bone at the base of the distal phalanx that
overlaps the root of the claw, providing structural support and protection for the nail bed.
Question 6
Which structural type of joint is distinguished by the presence of a joint cavity and high degree
of mobility?
A) Fibrous joint
B) Cartilaginous joint
C) Synovial joint
D) Synchondrosis
E) Syndesmosis
Correct Answer: C) Synovial joint
Rationale: Synovial joints are the most common and movable joints in the body. They are
characterized by a fluid-filled joint cavity, a joint capsule, and articular cartilage covering
the bone surfaces.
Question 7
A uniaxial joint that allows only rotation around a longitudinal axis is known as a:
A) Hinge joint
B) Pivot joint
C) Condylar joint
) Saddle joint
E) Ball-and-socket joint
Correct Answer: B) Pivot joint
, 3
Rationale: A pivot joint (trochoid joint) is uniaxial, allowing only rotation. A classic
example is the atlanto-axial joint, which allows for the "no" rotation of the head.
Question 8
Which uniaxial joint is formed by two condyles of one bone fitting into the concavities of
another bone?
A) Spheroid joint
B) Plane joint
C) Condylar joint
D) Ginglymus joint
E) Suture
Correct Answer: C) Condylar joint
Rationale: A condylar joint (like the stifle or temporomandibular joint) consists of two
rounded condyles articulating with relatively flat or concave surfaces. While it allows for
primary hinge movement, it is structurally distinct due to the dual condyles.
Question 9
Regarding muscle anatomy and attachments, which of the following statements is FALSE?
A) The origin of a muscle is usually the least movable attachment.
B) An aponeurosis is a round, cord-like attachment of round muscles.
C) Tendons attach muscles to bones.
D) A ligament attaches two bones together.
E) A sphincter is a circular muscle that encircles an opening.
Correct Answer: B) aponeurosis is a round attachment of round muscles
Rationale: This is false because an aponeurosis is a broad, flat, sheet-like tendon (usually
associated with flat muscles like those of the abdominal wall), not a round cord-like
attachment.
Question 10
Which of the following is considered an extrinsic muscle of the thoracic limb?
A) Infraspinatus
B) Triceps brachii
C) Trapezius
D) Brachialis
E) Subscapularis
Correct Answer: C) Trapezius
Rationale: Extrinsic muscles attach the limb to the trunk (the "synsarcosis"). The
trapezius, pectorals, and latissimus dorsi are examples. Intrinsic muscles (like the
infraspinatus) have both attachments within the limb itself.
200+ QUESTIONS AND CORRECT DETAILED ANSWERS PLUS RATIONALES
Question 1
What is the name of the groove located specifically between the greater and lesser tubercles of
the humerus?
A) Brachial groove
B) Musculospiral groove
C) Intertubercular groove
D) Trochlear notch
E) Olecranon fossa
Correct Answer: C) Intertubercular groove
Rationale: The intertubercular groove (also known as the bicipital groove) is a furrow
between the greater and lesser tubercles. It serves as a passage for the tendon of the long
head of the biceps brachii muscle and is a critical landmark in humeral anatomy.
Question 2
Which group of muscles primarily arises from the lateral epicondyle of the humerus?
A) Flexors of the forearm
B) Extensors of the forearm
C) Adductors of the shoulder
D) Pronators of the hand
E) Abductors of the digit
Correct Answer: B) extensors of the forearm
Rationale: The lateral epicondyle serves as the common origin for the extensor muscles of
the forearm (e.g., extensor carpi radialis, extensor digitorum). Conversely, the medial
epicondyle is the origin for the flexor group.
Question 3
The anconeal process is located at the proximal end of which of the following structures?
A) Radial head
B) Trochlear notch of the ulna
C) Scapular spine
D) Tibial tuberosity
E) Humeral condyle
Correct Answer: B) trochlear notch of the ulna
Rationale: The anconeal process is a sharp, proximal projection of the ulna that fits into the
olecranon fossa of the humerus when the elbow is extended. It is a common site for
"Ununited Anconeal Process" (UAP) in certain large breeds.
Question 4
In anatomical and clinical terms, the word "carpus" designates all of the following EXCEPT:
A) The individual carpal bones
B) The compound joint between the carpal bones
, 2
C) The region between the forearm and the metacarpus
D) The proximal row of tarsal bones
E) The clinical "wrist" area
Correct Answer: D) The proximal row of tarsal bones
Rationale: The carpus refers exclusively to the set of bones and joints between the
radius/ulna and the metacarpals. The tarsus refers to the corresponding region in the pelvic
limb (the ankle/hock).
Question 5
What is the shelf of the distal phalanx that covers the root of the claw or nail?
A) Ungual process
B) Extensor process
C) Ungual crest
D) Sole plate
E) Flexor tuberosity
Correct Answer: C) ungual crest
Rationale: The ungual crest is a thin shelf of bone at the base of the distal phalanx that
overlaps the root of the claw, providing structural support and protection for the nail bed.
Question 6
Which structural type of joint is distinguished by the presence of a joint cavity and high degree
of mobility?
A) Fibrous joint
B) Cartilaginous joint
C) Synovial joint
D) Synchondrosis
E) Syndesmosis
Correct Answer: C) Synovial joint
Rationale: Synovial joints are the most common and movable joints in the body. They are
characterized by a fluid-filled joint cavity, a joint capsule, and articular cartilage covering
the bone surfaces.
Question 7
A uniaxial joint that allows only rotation around a longitudinal axis is known as a:
A) Hinge joint
B) Pivot joint
C) Condylar joint
) Saddle joint
E) Ball-and-socket joint
Correct Answer: B) Pivot joint
, 3
Rationale: A pivot joint (trochoid joint) is uniaxial, allowing only rotation. A classic
example is the atlanto-axial joint, which allows for the "no" rotation of the head.
Question 8
Which uniaxial joint is formed by two condyles of one bone fitting into the concavities of
another bone?
A) Spheroid joint
B) Plane joint
C) Condylar joint
D) Ginglymus joint
E) Suture
Correct Answer: C) Condylar joint
Rationale: A condylar joint (like the stifle or temporomandibular joint) consists of two
rounded condyles articulating with relatively flat or concave surfaces. While it allows for
primary hinge movement, it is structurally distinct due to the dual condyles.
Question 9
Regarding muscle anatomy and attachments, which of the following statements is FALSE?
A) The origin of a muscle is usually the least movable attachment.
B) An aponeurosis is a round, cord-like attachment of round muscles.
C) Tendons attach muscles to bones.
D) A ligament attaches two bones together.
E) A sphincter is a circular muscle that encircles an opening.
Correct Answer: B) aponeurosis is a round attachment of round muscles
Rationale: This is false because an aponeurosis is a broad, flat, sheet-like tendon (usually
associated with flat muscles like those of the abdominal wall), not a round cord-like
attachment.
Question 10
Which of the following is considered an extrinsic muscle of the thoracic limb?
A) Infraspinatus
B) Triceps brachii
C) Trapezius
D) Brachialis
E) Subscapularis
Correct Answer: C) Trapezius
Rationale: Extrinsic muscles attach the limb to the trunk (the "synsarcosis"). The
trapezius, pectorals, and latissimus dorsi are examples. Intrinsic muscles (like the
infraspinatus) have both attachments within the limb itself.
