CHA 101L - Lab 17 (2 out of 3)

Knee joint is surrounded by...

Fibrous capsule

Articular (hyaline) cartilage

Synovial fluid

A fluid produced by the capsule that surrounds the knee

Meniscus

A fibrocartilage that deepens the knee socket

Stabilizes and cushions the joint

Medial menicus

Lateral menicus

Medial collateral ligament of the knee

Lateral collateral ligament of the knee

Anterior cruciate ligament (ACL)

Posterior cruciate ligament (PCL)

Why is the medial collateral ligament important when the leg is forcefully ABducted?

Can tear the medial collateral ligament and medial meniscus simultaneously

Valgus stress test

Medial force to knee

MCL

Varus stress test

Lateral force to knee

LCL

Anterior drawer test

Knee 90 degrees, tibia pulled anteriorly

ACL

Lachman test

Knee 20-30 degrees, tibia pulled anteriorly

ACL

Posterior drawer test

Knee 90 degrees, tibia pushed posteriorly

PCL

McMurray Test

Extend leg and apply stress/force, knee to chest

Lateral force -> Medial meniscus

Medial force -> Lateral meniscus

Significance of medial and lateral condyle of femur. Importance of the popliteus muscle to this significance

Weight of the body is evenly distributed; Center of mass is more medial

Muscle initiates flexion, knee stabilization, unlocks knee, and lateral rotation of the knee

Medial collateral (deltoid) ligament

Lateral collateral ligament of the ankle

Anterior talofibular ligament

Calcaneofibular ligament

Posterior talofibular ligament

Anterior talofibular ligament

Calcaneofibular ligament

Posterior talofibular ligament

The ankle (talocrural) joints allow for...

Plantarflexion

Dorsiflexion

Subtalar joints

Talus and calcaneus bones articulation point

Subtalar joint allows for...

Inversion

Eversion

Talus

Articulates with the tibia and fibula to form the ankle bone

Calcaneus

Heel bone

Articulates with the talus to form the subtalar joint

Navicular

Medial, just distal to the talus

Cuboid

Lateral, just distal to the calcaneus

Cuneiform bone

Between the navicular and the bases of the 1st three metatarsals

Medial cuneiform

Intermediate cuneiform

Lateral cuneiform

Metatarsals and foot phalanges are analogous to the...

Metacarpals and hand phalanges

Longitudinal arch of the foot

Medial longitudinal arch

Lateral longitudinal arch

Transverse arch

Which ligaments provide the majority of support to the arches of the foot?

Plantar calcaneonavicular ligament

Long plantar ligament

Short plantar ligament

Plantar aponeurosis

What is plantar fascitis?

Inflammation of plantar aponeurosis