Identifying Tendons and Ligaments

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Anatomy › Identifying Tendons and Ligaments

Questions 1 - 10
1

Where could one find the coronary ligament?

Knee

Heart

Lungs

Pericardium

Shoulder

Explanation

There are two different coronary ligaments in the body. The coronary ligament of the liver serves to connect the liver to the inferior surface of the diaphragm; as this is not an answer option, we must be looking at the second type of coronary ligament.

The coronary ligament of the knee serves to connect the menisci to the tibial condyles, and is continuous with the joint capsule of the knee.

2

Which of the following ligaments is not a part of the deltoid ligament of the ankle?

Calcaneofibular

Tibionavicular

Tibiocalcaneal

Anterior tibiotalar

Posterior tibiotalar

Explanation

The calcaneofibular ligament is located on the lateral side of the ankle instead of the medial side where the deltoid ligament is located. All other ligaments are part of the deltoid ligament of the ankle.

3

In which joint would you find the ligament of Wrisberg?

Knee (tibiofemoral joint)

Ankle (talocrural joint)

Hip (coxafemoral joint)

Shoulder (glenohumeral joint)

Explanation

The ligament of Wrisberg is better known as the posterior meniscofemoral ligament. As the name suggests, it is found in the knee. It extends from the posterior horn of the lateral meniscus to the medial femoral condyle. Although its function is still being researched, current understanding suggests that the ligament stabilizes the meniscus to optimize contact between it and the femur.

4

The lateral thickening of the fascia lata forms what?

Iliotibial (IT) band

Crurial fascia of the leg

Anterior rectus sheath

Posterior rectus sheath

Popliteal fascia

Explanation

The fascia lata of the thigh thickens laterally to form the iliotibial (IT) band. The crurial fascia of the leg is found below the knee. The anterior and posterior rectus sheaths are found in the abdominal region. The popliteal fascia is found on the posterior side of the knee.

5

The sustentaculum part of which bone?

Calcaneus

Talus

Tibia

Navicular

Explanation

The sustentaculum tali projects from the medial calcaneus. It serves as an attachment site for the tibiocalcanel fibers of the deltoid ligament. Additionally, it serves an attachment for the plantar calcaneonavicular (spring) ligament.

6

During muscle contraction, which component(s) of the sarcomere shorten(s)?

The H-zone and I-band

The H-zone only

The I-band only

The A-band only

The A-band and H-zone

Explanation

Muscle contraction results in both the H-zone and I-bands shortening, but the A-band remains the same length (A band is Always the same). The Z-line is a static structure and doesn't change size.

7

Which of the following is the primary purpose of the posterior cruciate ligament (PCL)?

To resist hyperflexion

To resist hyperextension

To bind the anterior ends of the lateral and medial menisci

To prevent lateral displacement of the tibia

To prevent medial displacement of the tibia

Explanation

The posterior cruciate ligament is responsible for resisting hyperflexion of the knee joint. The anterior cruciate ligament is responsible for resisting hypertension of the knee joint. The transverse ligament is responsible for binding the anterior ends of the lateral and medial menisci.

8

Which ligament connects the laminae of the vertebral column and has a yellowish color due to the presence of elastin?

Ligamentum flavum

Nuchal ligament

Anterior longitudinal ligament

Posterior longitudinal ligament

None of these

Explanation

All the other answer choices are also ligaments of the spinal cord. The anterior and posterior longitudinal ligaments run along the bodies of the vertebra rather than the laminae, and the nuchal ligament is a thin flap that connects from the cervical spine to the occipital bone. It helps prevent too much forward flexion of the head.

9

Which of the following is a ligament found in the foot?

Cervical ligament

Anterior cruciate ligament

Oblique popliteal ligament

Arcuate popliteal ligament

Explanation

The anterior cruciate ligament stabilizes the knee by preventing excess anterior tibial translation. The oblique popliteal ligament stabilizes the posteromedial ligament. The arcuate popliteal ligament stabilizes the posterolateral knee capsule.The cervical ligament helps stabilize the subtalar joint.

10

The calcaneal tendon is formed from the joined tendons of all of the following muscles except the __________.

popliteus

gastrocnemius

soleus

plantaris

Tendons from all of these muscles combine to form the calcaneal tendon

Explanation

The calcaneal tendon (also called the Achilles tendon) is formed from the combined tendons of all the superficial muscles of the posterior leg. These muscles are the gastrocnemius, soleus, and plantaris.

The popliteus is a muscle of the posterior leg, however it is found in the deep layer. It functions in unlocking the knee from the extended position.

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