Human Anatomy and Physiology : Help with Bone Injuries and Disorders

Study concepts, example questions & explanations for Human Anatomy and Physiology

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Example Questions

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Example Question #1 : Help With Bone Injuries And Disorders

What symptom is normally seen with the sacralization of L5 vertebra and why?

Possible Answers:

Sacralization of the L5 vertebra will not affect mobility because it is the most caudal lumbar vertebra

Increase of mobility because the lumbar vertebrae are normally associated with high mobility

Loss of mobility because the lumbar vertebrae are normally associated with high mobility

Increase of mobility because the sacrum is associated with low mobility 

Loss of mobility because the sacrum is associated with high mobility

Correct answer:

Loss of mobility because the lumbar vertebrae are normally associated with high mobility

Explanation:

The lumbar region of the vertebrae is known for its high mobility and ability to support body weight. If it receives inappropriate signals during development and fuses with the sacrum, it will result in a loss of mobility in the individual. 

Example Question #2 : Help With Bone Injuries And Disorders

What carpal bone articulates with the radius and is the most commonly fractured bone in the wrist? 

Possible Answers:

Scaphoid

Hamate

Trapezium

Pisiform

Correct answer:

Scaphoid

Explanation:

The scaphoid, which articulates with the distal radius, is a very common fractured bone. It is located at the base of the thumb.

Example Question #3 : Help With Bone Injuries And Disorders

Legg-Calvé-Perthes disease involves avascular necrosis of which bone?

Possible Answers:

Talus

Femur

Humerus

Scaphoid

Mandible

Correct answer:

Femur

Explanation:

While the other bones listed are common sites of avascular necrosis, Legg-Calvé-Perthes disease specifically refers to avascular necrosis of the femoral head.

Example Question #4 : Help With Bone Injuries And Disorders

Which motion at the ankle, when take to the extreme, is likely to result in an avulsion fracture of the medial malleolus?

Possible Answers:

Dorsiflexion

Extension

Plantarflexion

Eversion

Inversion

Correct answer:

Eversion

Explanation:

End range ankle eversion tenses the deltoid ligament (medial collateral ligament of the ankle). However, at the extremes of ankle eversion, the high tensile strength of the deltoid ligament can cause the medial malleolus to avulse from the tibia. During inversion, this ligament is not tense.

Example Question #101 : Injuries And Disorders

Osgood-Schlatter's is characterized by repeated avulsion fractures of which bone?

Possible Answers:

Patella

5th metatarsal

Ilium

Ischium

Tibia

Correct answer:

Tibia

Explanation:

Although bony prominences on the other bones listed are common sites for avulsion fractures, Osgood-Schlatter's disease refers to the repeated avulsion of the tibial tuberosity, which can occur during growth spurts.

Example Question #102 : Injuries And Disorders

Following anterior dislocation of the humerus, the posterolateral posrtion of the humeral head can become injured. What is the name for this type of injury?

Possible Answers:

McLaughlin lesion

Reverse Hill-Sachs lesion

Bankart lesion

Hill-Sachs lesion

SLAP lesion

Correct answer:

Hill-Sachs lesion

Explanation:

(Superior Lateral Anterior Posterior) SLAP and Bankart tears are injuries to the glenoid labrum. Reverse-Hill Sachs and McLaughlin lesion are synonymous, however they are injuries to the anteromedial portion of the humeral head, and are caused by posterior dislocation of the humerus.

Example Question #103 : Injuries And Disorders

A Monteggia fracture is an injury to bone?

Possible Answers:

Patella

Talus

Fibula

Ulna

Femur

Correct answer:

Ulna

Explanation:

A Monteggia fracture is a fracture-dislocation injury that involves a fracture of the proximal ulna, and dislocation of the proximal radius.

Example Question #5 : Help With Bone Injuries And Disorders

Which of the following describes a grade V Salter-Harris fracture?

Possible Answers:

Compression injury to epiphyseal plate

Fracture through the epiphyseal plate and epiphysis

Fracture through the epiphyseal plate, with small fracture through metaphysis ("chip fracture")

Transverse fracture through the epiphyseal plate

Fracture extending from the epiphysis, through the epiphyseal plate, and into the metaphysis

Correct answer:

Compression injury to epiphyseal plate

Explanation:

A Salter-Harris type V fracture is a compress ion injury of the epiphyseal plate. The other choices listed are type I is a transverse fracture through the epiphyseal plate. Type IV is a fracture extending from the epiphysis, through the epiphyseal plate, and into the metaphysis. Type III is a fracture through the epiphyseal plate and epiphysis. Type II is a fracture through the epiphyseal plate, with small fracture through metaphysis ("chip fracture").

Example Question #105 : Injuries And Disorders

An open-book fracture describes an injury to which body region?

Possible Answers:

Wrist complex

Pelvis

Cervical spine

Ankle complex

Elbow complex 

Correct answer:

Pelvis

Explanation:

An open book fracture is an injury to the pelvis. In this injury, the pubic symphysis is disrupted, causing the pelvis to look like an open book.

Example Question #106 : Injuries And Disorders

Which of the following diseases is not associated with damage to bones?

Possible Answers:

Pott's disease

Osteogenesis imperfecta

de Quervain syndrome

Paget's disease

Correct answer:

de Quervain syndrome

Explanation:

Paget's disease is a bone disease characterized by rapid bone degradation, and rebound bone growth however, the bone is laid bone in a disorganized manner and is prone to further degeneration. Pott's disease is characterized by destruction of thoracic vertebra, secondary to tuberculosis infection. Osteogenesis imperfecta is a congenital disorder caused by abnormalities in type I collagen production, that makes the patient prone to fracture. de Quervain syndrome is also known as de Quervain tenosynovitis, and is characterized by irritation to the sheath covering the extensor pollicis brevis and abductor pollicis longus tendons.

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