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Tibia and Fibula Anatomy Quiz

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39 Questions

What is the function of the tibial tuberosity in relation to the quadriceps femoris tendon?

Anchor point for the patellar ligament

Why is the tibia considered the only weight-bearing bone of the crural region?

Due to its strong and thick structure

Which structure provides lateral stability on the lateral side of the ankle?

Lateral malleolus of the fibula

Which bone articulates with the tibia and fibula to form the distal tibiofibular joint?

Fibular notch

What is the main function of the interosseous membrane connecting the tibia and fibula?

Allows smooth gliding of tendons

Which bone forms the largest and strongest heel bone in the foot?

Calcaneus

Which bone articulates with both the tibia and fibula?

Talus

What is the role of the medial malleolus in relation to ankle anatomy?

Acts as an anchor point for tendons

Which muscle is considered the most powerful muscle in the body?

Quadriceps femoris

Which muscle in the hamstrings group flexes the thigh?

Biceps femoris

Which muscle is known as the tailor muscle?

Sartorius

Which muscle is part of both the quadriceps femoris group and flexes the thigh at the hip?

Vastus intermedius

Among the posterior flexor muscles, which one extends the leg at the knee joint?

Biceps femoris

Which of these muscles does NOT belong to the quadriceps femoris group?

Sartorius

Which muscle extends the knee when standing up or kicking a ball?

Rectus femoris

Which muscle acts with the iliopsoas to flex the hip while running?

Quadriceps femoris

Which muscle plantar flexes the foot at the ankle joint and is considered a weak leg flexor?

Plantaris

Which muscle flexes the leg at the knee and plantar flexes the foot at the ankle joint?

Flexor hallicus longus

Which nerve arises from the sacral plexus and innervates the anterior and lateral leg, as well as the dorsum of the foot?

Sciatic nerve

Which nerve innervates the posterior surface of the thigh and leg?

Superficial gluteal nerve

What is the primary function of the Flexor hallicus longus muscle?

Flexion of the leg at the knee

Which muscle medially rotates the tibia to unlock the knee?

Popliteus

What are the main areas supplied by the sacral plexus?

Buttocks, perineum, and lower limbs

Which nerve innervates both the dorsum and plantar aspects of the foot?

Sciatic nerve

What does the Tibialis posterior muscle primarily do?

Plantar flex & invert foot

Which nerve innervates the superior gluteal region?

Inferior gluteal nerve

Which bones articulate with the cuboid bone in the foot?

Metatarsals IV and V

What is the origin of the short head of the Biceps Femoris muscle?

Linea aspera of the femur

Where does the medial longitudinal arch of the foot extend to?

Heel to the great toe

Which muscle commonly flexes the leg at the knee joint and extends the thigh at the hip?

Semitendinosus

What helps the ankle bear the weight of the body?

Tarsals

What is another term for the big toe in foot anatomy?

Hallux

What is the insertion point of the Semimembranosus muscle?

Medial condyle of tibia

Which joint do Metatarsals I-III articulate with?

Cuneiform bones

Which muscle is responsible for dorsiflexing and inverting the foot?

Tibialis anterior

What happens when too much arch occurs in foot pathologies?

Clawfoot occurs

What is the action of Fibularis longus and brevis muscles?

Evert foot and flex plantar

Which muscle extends toes 2-5 and dorsiflexes foot at the ankle joint?

Extensor digitorum longus

Where does the long head of Biceps Femoris muscle originate?

Ischial tuberosity

Study Notes

Tibial Tuberosity and Quadriceps Femoris

  • The tibial tuberosity serves as an attachment point for the quadriceps femoris tendon.

Weight-Bearing Bone

  • The tibia is considered the only weight-bearing bone of the crural region.

Lateral Stability

  • The fibula provides lateral stability on the lateral side of the ankle.

Distal Tibiofibular Joint

  • The fibula articulates with the tibia to form the distal tibiofibular joint.

Interosseous Membrane

  • The interosseous membrane connecting the tibia and fibula provides stability and allows for limited movement between the two bones.

Heel Bone

  • The calcaneus forms the largest and strongest heel bone in the foot.

Ankle Anatomy

  • The talus bone articulates with both the tibia and fibula.
  • The medial malleolus plays a crucial role in ankle anatomy.

Muscles

  • The gluteus maximus is considered the most powerful muscle in the body.
  • The hamstring group, specifically the semitendinosus, flexes the thigh.
  • The sartorius muscle is known as the tailor muscle.
  • The rectus femoris is part of both the quadriceps femoris group and flexes the thigh at the hip.
  • The gastrocnemius muscle extends the leg at the knee joint among the posterior flexor muscles.
  • The tensor fasciae latae does NOT belong to the quadriceps femoris group.
  • The quadriceps femoris muscle extends the knee when standing up or kicking a ball.
  • The iliopsoas muscle acts with the iliopsoas to flex the hip while running.
  • The gastrocnemius muscle plantar flexes the foot at the ankle joint and is considered a weak leg flexor.
  • The hamstrings flex the leg at the knee and plantar flex the foot at the ankle joint.

Nerves

  • The common peroneal nerve arises from the sacral plexus and innervates the anterior and lateral leg, as well as the dorsum of the foot.
  • The tibial nerve innervates the posterior surface of the thigh and leg.
  • The tibial nerve primarily innervates the Flexor hallicus longus muscle.
  • The popliteus muscle medially rotates the tibia to unlock the knee.
  • The sacral plexus supplies the anterior and posterior regions of the thigh and leg.
  • The deep peroneal nerve innervates both the dorsum and plantar aspects of the foot.
  • The superior gluteal nerve innervates the superior gluteal region.
  • The tibialis posterior muscle primarily inverts and supports the arch of the foot.

Foot Anatomy

  • The cuboid bone articulates with the calcaneus and navicular bones in the foot.
  • The short head of the Biceps Femoris muscle originates from the linea aspera.
  • The medial longitudinal arch of the foot extends to the first metatarsal bone.
  • The hamstrings commonly flex the leg at the knee joint and extend the thigh at the hip.
  • The ankle joint, specifically the calcaneus and talus bones, helps bear the weight of the body.
  • The hallux is another term for the big toe in foot anatomy.
  • The Semimembranosus muscle inserts into the medial condyle of the tibia.
  • Metatarsals I-III articulate with the cuneiform bones.
  • The tibialis anterior muscle is responsible for dorsiflexing and inverting the foot.
  • Excessive arch can lead to foot pathologies, such as pes cavus.
  • The Fibularis longus and brevis muscles evert and dorsiflex the foot.
  • The extensor digitorum longus muscle extends toes 2-5 and dorsiflexes the foot at the ankle joint.
  • The long head of the Biceps Femoris muscle originates from the ischial tuberosity.

Test your knowledge of the anatomy of the tibia and fibula bones, including their different surface features and connections. Learn about the tibial tuberosity, condyles, malleoli, and more.

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