BIOL251 Human Anatomy & Physiology I w/Lab 2026 |
Module 4 Exam Review
Detailed and Complicated Version 2.0
150 Advanced Multiple-Choice Questions with Comprehensive Answers
and Rationales
SECTION 1: ARTICULATIONS, JOINTS & BIOMECHANICS (Questions 1–
35)
🟢 1. Which of the following joints exhibits the greatest structural complexity due to the
presence of intra-articular menisci, multiple ligaments (intrinsic and extrinsic), and a synovial
membrane that extends into the infrapatellar fat pad?
A. Glenohumeral joint
B. Coxal joint
C. Tibiofemoral joint
D. Talocrural joint
:: C. Tibiofemoral joint – The knee (tibiofemoral) joint is the most complex joint in the body,
featuring medial and lateral menisci, cruciate ligaments (ACL, PCL), collateral ligaments (MCL,
LCL), and a synovial membrane that lines the joint capsule and extends into the infrapatellar
fat pad.
🟢 2. A patient presents with an inability to supinate the forearm and weakness in elbow
flexion. Which nerve and joint are most likely affected?
A. Ulnar nerve at the humeroulnar joint
B. Radial nerve at the humeroradial joint
C. Median nerve at the proximal radioulnar joint
D. Musculocutaneous nerve at the elbow joint
:: B. Radial nerve at the humeroradial joint – The radial nerve innervates the supinator and
brachioradialis muscles, which are essential for supination and elbow flexion. Damage to the
radial nerve at the humeroradial joint would impair these functions.
🟢 3. Which of the following describes the sequential biomechanical events that occur
during the closed-chain kinetic movement of a squat?
A. Hip flexion, knee flexion, ankle dorsiflexion
B. Hip extension, knee extension, ankle plantarflexion
C. Hip abduction, knee rotation, ankle inversion
D. Hip adduction, knee flexion, ankle eversion
:: A. Hip flexion, knee flexion, ankle dorsiflexion – During the descending phase of a squat
(closed-chain), the hip and knee flex while the ankle dorsiflexes to maintain the center of
mass over the base of support.
🟢 4. Which ligament is primarily responsible for resisting anterior translation of the tibia
on the femur during an anterior drawer test and is most commonly injured in non-contact
deceleration injuries?
A. Posterior cruciate ligament (PCL)
, B. Anterior cruciate ligament (ACL)
C. Medial collateral ligament (MCL)
D. Lateral collateral ligament (LCL)
:: B. Anterior cruciate ligament (ACL) – The ACL resists anterior translation of the tibia and is
commonly injured during sudden deceleration, pivoting, or landing from a jump. The
anterior drawer test specifically assesses ACL integrity.
🟢 5. Which of the following structural joint types is characterized by bones united by a thin
layer of dense fibrous connective tissue, lacks a joint cavity, and is functionally classified as
synarthrotic?
A. Syndesmosis
B. Gomphosis
C. Suture
D. Symphysis
:: C. Suture – Sutures are fibrous joints where bones are united by a thin layer of dense
fibrous tissue (sutural ligament). They lack a joint cavity and are synarthrotic. Sutures are
only found in the skull.
🟢 6. Which of the following correctly describes the articular surfaces and movement axes
of the temporomandibular joint (TMJ)?
A. Condylar process of the mandible with the mandibular fossa and articular tubercle of the
temporal bone; allows flexion, extension, and lateral excursion
B. Condylar process of the mandible with the zygomatic process; allows only rotation
C. Mandibular notch with the styloid process; allows protraction only
D. Coronoid process with the articular eminence; allows depression and elevation only
:: A. Condylar process of the mandible with the mandibular fossa and articular tubercle of
the temporal bone; allows flexion, extension, and lateral excursion – The TMJ involves the
condylar process of the mandible articulating with the mandibular fossa and articular
tubercle of the temporal bone. It allows depression/elevation, protraction/retraction, and
lateral excursion.
🟢 7. What is the primary function of the labrum in the glenohumeral and coxal joints?
A. To produce synovial fluid
B. To deepen the articular socket and increase joint stability
C. To reduce friction between articulating bones
D. To provide a site for muscle attachment
:: B. To deepen the articular socket and increase joint stability – The labrum is a
fibrocartilaginous rim that deepens the glenoid cavity (shoulder) and acetabulum (hip),
increasing the articular surface area and enhancing joint stability.
🟢 8. A patient with a rotator cuff tear would most likely exhibit weakness in which of the
following movements?
A. Elbow flexion and forearm supination
B. Shoulder abduction and external rotation
C. Wrist flexion and ulnar deviation
D. Finger extension and thumb abduction
:: B. Shoulder abduction and external rotation – The rotator cuff muscles (supraspinatus,
, infraspinatus, teres minor, subscapularis) stabilize the glenohumeral joint. A tear, particularly
of the supraspinatus, results in weakness in shoulder abduction and external rotation.
🟢 9. Which of the following joints is classified as a biaxial condyloid joint that allows
flexion, extension, abduction, adduction, and circumduction but NOT rotation?
A. Metacarpophalangeal joints (2nd–5th)
B. Carpometacarpal joint of the thumb
C. Proximal interphalangeal joints
D. Radiocarpal joint
:: A. Metacarpophalangeal joints (2nd–5th) – These are condyloid joints that allow
flexion/extension and abduction/adduction (biaxial), but rotation is limited. The thumb's
carpometacarpal joint is a saddle joint, allowing opposition.
🟢 10. What is the significance of the "unhappy triad" injury of the knee?
A. Simultaneous injury to the ACL, PCL, and meniscus
B. Simultaneous injury to the ACL, MCL, and medial meniscus
C. Simultaneous injury to the LCL, PCL, and lateral meniscus
D. Simultaneous injury to the patellar ligament, quadriceps tendon, and meniscus
:: B. Simultaneous injury to the ACL, MCL, and medial meniscus – The "unhappy triad" is a
classic sports injury resulting from a lateral blow to the knee causing valgus stress, tearing
the ACL, MCL, and medial meniscus.
🟢 11. Which of the following is an example of a synchondrosis that ossifies with age?
A. Pubic symphysis
B. Epiphyseal plate
C. Intervertebral disc
D. Sternoclavicular joint
:: B. Epiphyseal plate – The epiphyseal (growth) plate is a temporary synchondrosis of
hyaline cartilage that ossifies (becomes a synostosis) after bone growth ceases, typically in
early adulthood.
🟢 12. The interosseous membrane between the radius and ulna is classified as which type
of joint?
A. Suture
B. Gomphosis
C. Syndesmosis
D. Symphysis
:: C. Syndesmosis – The interosseous membrane is a syndesmosis, a fibrous joint where
bones are connected by an interosseous ligament. It allows slight movement
(amphiarthrotic).
🟢 13. Which of the following movements is NOT permitted by a pivot joint?
A. Rotation
B. Supination
C. Pronation
D. Flexion
:: D. Flexion – Pivot joints allow only rotational movement around a single axis (uniaxial).
Flexion and extension are not permitted; these are movements of hinge or condyloid joints.
, 🟢 14. Which of the following clinical tests assesses the integrity of the posterior cruciate
ligament (PCL)?
A. Lachman test
B. Anterior drawer test
C. Posterior drawer test
D. McMurray test
:: C. Posterior drawer test – The posterior drawer test assesses PCL integrity by detecting
excessive posterior translation of the tibia. The Lachman and anterior drawer tests assess the
ACL, and the McMurray test assesses meniscal tears.
🟢 15. A 55-year-old patient with a history of repetitive knee bending complains of pain and
swelling in the anterior knee. Which bursa is most likely inflamed?
A. Subacromial bursa
B. Prepatellar bursa
C. Olecranon bursa
D. Trochanteric bursa
:: B. Prepatellar bursa – Prepatellar bursitis ("housemaid's knee") results from repetitive
kneeling or trauma to the anterior knee, causing inflammation of the prepatellar bursa.
🟢 16. Which of the following ligaments stabilizes the acromioclavicular joint and is most
commonly injured in "shoulder separations"?
A. Coracoacromial ligament
B. Coracoclavicular ligament
C. Acromioclavicular ligament
D. Glenohumeral ligament
:: C. Acromioclavicular ligament – The acromioclavicular ligament, along with the
coracoclavicular ligament, stabilizes the AC joint. Sprains of the AC ligament cause varying
degrees of AC joint separation.
🟢 17. Which of the following describes the configuration of the articular surfaces and the
type of movement in a ball-and-socket joint?
A. Convex surface fitting into a concave surface; multiaxial movement
B. Biconcave surfaces; limited movement
C. Flat surfaces; gliding movement
D. Saddle-shaped surfaces; biaxial movement
:: A. Convex surface fitting into a concave surface; multiaxial movement – A ball-and-
socket joint (enarthrosis) features a spherical head (convex) fitting into a cup-shaped socket
(concave), allowing multiaxial movement including flexion, extension, abduction, adduction,
rotation, and circumduction.
🟢 18. What is the relationship between the joint capsule and the ligaments in a synovial
joint?
A. Ligaments are always external to the joint capsule
B. Ligaments can be capsular (thickenings of the capsule), intracapsular, or extracapsular
C. Ligaments are only found in fibrous joints
D. Ligaments replace the joint capsule in all synovial joints
:: B. Ligaments can be capsular (thickenings of the capsule), intracapsular, or
Module 4 Exam Review
Detailed and Complicated Version 2.0
150 Advanced Multiple-Choice Questions with Comprehensive Answers
and Rationales
SECTION 1: ARTICULATIONS, JOINTS & BIOMECHANICS (Questions 1–
35)
🟢 1. Which of the following joints exhibits the greatest structural complexity due to the
presence of intra-articular menisci, multiple ligaments (intrinsic and extrinsic), and a synovial
membrane that extends into the infrapatellar fat pad?
A. Glenohumeral joint
B. Coxal joint
C. Tibiofemoral joint
D. Talocrural joint
:: C. Tibiofemoral joint – The knee (tibiofemoral) joint is the most complex joint in the body,
featuring medial and lateral menisci, cruciate ligaments (ACL, PCL), collateral ligaments (MCL,
LCL), and a synovial membrane that lines the joint capsule and extends into the infrapatellar
fat pad.
🟢 2. A patient presents with an inability to supinate the forearm and weakness in elbow
flexion. Which nerve and joint are most likely affected?
A. Ulnar nerve at the humeroulnar joint
B. Radial nerve at the humeroradial joint
C. Median nerve at the proximal radioulnar joint
D. Musculocutaneous nerve at the elbow joint
:: B. Radial nerve at the humeroradial joint – The radial nerve innervates the supinator and
brachioradialis muscles, which are essential for supination and elbow flexion. Damage to the
radial nerve at the humeroradial joint would impair these functions.
🟢 3. Which of the following describes the sequential biomechanical events that occur
during the closed-chain kinetic movement of a squat?
A. Hip flexion, knee flexion, ankle dorsiflexion
B. Hip extension, knee extension, ankle plantarflexion
C. Hip abduction, knee rotation, ankle inversion
D. Hip adduction, knee flexion, ankle eversion
:: A. Hip flexion, knee flexion, ankle dorsiflexion – During the descending phase of a squat
(closed-chain), the hip and knee flex while the ankle dorsiflexes to maintain the center of
mass over the base of support.
🟢 4. Which ligament is primarily responsible for resisting anterior translation of the tibia
on the femur during an anterior drawer test and is most commonly injured in non-contact
deceleration injuries?
A. Posterior cruciate ligament (PCL)
, B. Anterior cruciate ligament (ACL)
C. Medial collateral ligament (MCL)
D. Lateral collateral ligament (LCL)
:: B. Anterior cruciate ligament (ACL) – The ACL resists anterior translation of the tibia and is
commonly injured during sudden deceleration, pivoting, or landing from a jump. The
anterior drawer test specifically assesses ACL integrity.
🟢 5. Which of the following structural joint types is characterized by bones united by a thin
layer of dense fibrous connective tissue, lacks a joint cavity, and is functionally classified as
synarthrotic?
A. Syndesmosis
B. Gomphosis
C. Suture
D. Symphysis
:: C. Suture – Sutures are fibrous joints where bones are united by a thin layer of dense
fibrous tissue (sutural ligament). They lack a joint cavity and are synarthrotic. Sutures are
only found in the skull.
🟢 6. Which of the following correctly describes the articular surfaces and movement axes
of the temporomandibular joint (TMJ)?
A. Condylar process of the mandible with the mandibular fossa and articular tubercle of the
temporal bone; allows flexion, extension, and lateral excursion
B. Condylar process of the mandible with the zygomatic process; allows only rotation
C. Mandibular notch with the styloid process; allows protraction only
D. Coronoid process with the articular eminence; allows depression and elevation only
:: A. Condylar process of the mandible with the mandibular fossa and articular tubercle of
the temporal bone; allows flexion, extension, and lateral excursion – The TMJ involves the
condylar process of the mandible articulating with the mandibular fossa and articular
tubercle of the temporal bone. It allows depression/elevation, protraction/retraction, and
lateral excursion.
🟢 7. What is the primary function of the labrum in the glenohumeral and coxal joints?
A. To produce synovial fluid
B. To deepen the articular socket and increase joint stability
C. To reduce friction between articulating bones
D. To provide a site for muscle attachment
:: B. To deepen the articular socket and increase joint stability – The labrum is a
fibrocartilaginous rim that deepens the glenoid cavity (shoulder) and acetabulum (hip),
increasing the articular surface area and enhancing joint stability.
🟢 8. A patient with a rotator cuff tear would most likely exhibit weakness in which of the
following movements?
A. Elbow flexion and forearm supination
B. Shoulder abduction and external rotation
C. Wrist flexion and ulnar deviation
D. Finger extension and thumb abduction
:: B. Shoulder abduction and external rotation – The rotator cuff muscles (supraspinatus,
, infraspinatus, teres minor, subscapularis) stabilize the glenohumeral joint. A tear, particularly
of the supraspinatus, results in weakness in shoulder abduction and external rotation.
🟢 9. Which of the following joints is classified as a biaxial condyloid joint that allows
flexion, extension, abduction, adduction, and circumduction but NOT rotation?
A. Metacarpophalangeal joints (2nd–5th)
B. Carpometacarpal joint of the thumb
C. Proximal interphalangeal joints
D. Radiocarpal joint
:: A. Metacarpophalangeal joints (2nd–5th) – These are condyloid joints that allow
flexion/extension and abduction/adduction (biaxial), but rotation is limited. The thumb's
carpometacarpal joint is a saddle joint, allowing opposition.
🟢 10. What is the significance of the "unhappy triad" injury of the knee?
A. Simultaneous injury to the ACL, PCL, and meniscus
B. Simultaneous injury to the ACL, MCL, and medial meniscus
C. Simultaneous injury to the LCL, PCL, and lateral meniscus
D. Simultaneous injury to the patellar ligament, quadriceps tendon, and meniscus
:: B. Simultaneous injury to the ACL, MCL, and medial meniscus – The "unhappy triad" is a
classic sports injury resulting from a lateral blow to the knee causing valgus stress, tearing
the ACL, MCL, and medial meniscus.
🟢 11. Which of the following is an example of a synchondrosis that ossifies with age?
A. Pubic symphysis
B. Epiphyseal plate
C. Intervertebral disc
D. Sternoclavicular joint
:: B. Epiphyseal plate – The epiphyseal (growth) plate is a temporary synchondrosis of
hyaline cartilage that ossifies (becomes a synostosis) after bone growth ceases, typically in
early adulthood.
🟢 12. The interosseous membrane between the radius and ulna is classified as which type
of joint?
A. Suture
B. Gomphosis
C. Syndesmosis
D. Symphysis
:: C. Syndesmosis – The interosseous membrane is a syndesmosis, a fibrous joint where
bones are connected by an interosseous ligament. It allows slight movement
(amphiarthrotic).
🟢 13. Which of the following movements is NOT permitted by a pivot joint?
A. Rotation
B. Supination
C. Pronation
D. Flexion
:: D. Flexion – Pivot joints allow only rotational movement around a single axis (uniaxial).
Flexion and extension are not permitted; these are movements of hinge or condyloid joints.
, 🟢 14. Which of the following clinical tests assesses the integrity of the posterior cruciate
ligament (PCL)?
A. Lachman test
B. Anterior drawer test
C. Posterior drawer test
D. McMurray test
:: C. Posterior drawer test – The posterior drawer test assesses PCL integrity by detecting
excessive posterior translation of the tibia. The Lachman and anterior drawer tests assess the
ACL, and the McMurray test assesses meniscal tears.
🟢 15. A 55-year-old patient with a history of repetitive knee bending complains of pain and
swelling in the anterior knee. Which bursa is most likely inflamed?
A. Subacromial bursa
B. Prepatellar bursa
C. Olecranon bursa
D. Trochanteric bursa
:: B. Prepatellar bursa – Prepatellar bursitis ("housemaid's knee") results from repetitive
kneeling or trauma to the anterior knee, causing inflammation of the prepatellar bursa.
🟢 16. Which of the following ligaments stabilizes the acromioclavicular joint and is most
commonly injured in "shoulder separations"?
A. Coracoacromial ligament
B. Coracoclavicular ligament
C. Acromioclavicular ligament
D. Glenohumeral ligament
:: C. Acromioclavicular ligament – The acromioclavicular ligament, along with the
coracoclavicular ligament, stabilizes the AC joint. Sprains of the AC ligament cause varying
degrees of AC joint separation.
🟢 17. Which of the following describes the configuration of the articular surfaces and the
type of movement in a ball-and-socket joint?
A. Convex surface fitting into a concave surface; multiaxial movement
B. Biconcave surfaces; limited movement
C. Flat surfaces; gliding movement
D. Saddle-shaped surfaces; biaxial movement
:: A. Convex surface fitting into a concave surface; multiaxial movement – A ball-and-
socket joint (enarthrosis) features a spherical head (convex) fitting into a cup-shaped socket
(concave), allowing multiaxial movement including flexion, extension, abduction, adduction,
rotation, and circumduction.
🟢 18. What is the relationship between the joint capsule and the ligaments in a synovial
joint?
A. Ligaments are always external to the joint capsule
B. Ligaments can be capsular (thickenings of the capsule), intracapsular, or extracapsular
C. Ligaments are only found in fibrous joints
D. Ligaments replace the joint capsule in all synovial joints
:: B. Ligaments can be capsular (thickenings of the capsule), intracapsular, or
