Question 1

Hip fractures among the elderly greatly increase the risk of death.

Accepted Answer

A) True 
 B)False  True

Question 2

List and describe the four quadriceps muscles, including location, actions, and possible injury implications in the case of imbalance.

Accepted Answer

The four quadriceps muscles are the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius.

1. Rectus Femoris: This muscle is located in the middle of the thigh and is the only quadriceps muscle that crosses the hip joint. Its actions include extending the knee and flexing the hip. Imbalance in this muscle can lead to issues with knee stability and hip flexor tightness.

2. Vastus Lateralis: This muscle is located on the outer side of the thigh and is responsible for extending the knee. Imbalance in this muscle can lead to issues with patellar tracking and lateral knee pain.

3. Vastus Medialis: This muscle is located on the inner side of the thigh and also plays a role in extending the knee. Imbalance in this muscle can lead to issues with patellar tracking and medial knee pain.

4. Vastus Intermedius: This muscle is located beneath the rectus femoris and is also involved in extending the knee. Imbalance in this muscle can lead to issues with overall knee stability and strength.

In the case of imbalance in the quadriceps muscles, there can be implications for injury. For example, if the vastus lateralis is significantly stronger than the vastus medialis, it can lead to an imbalance in the forces acting on the patella, potentially causing patellar tracking issues and knee pain. Similarly, if the rectus femoris is much stronger than the other quadriceps muscles, it can lead to hip flexor tightness and potential hip joint issues. Therefore, it is important to maintain a balance in strength and flexibility among the quadriceps muscles to prevent injury and maintain optimal function.

Question 3

Which of the following statements is true regarding ACL injuries?

Accepted Answer

A)  occur more frequently in women than in men 
B)  occur more frequently in men than in women 
C)  occurrence is approximately equal between men and women 
D)  frequency between men and women is sport specific 
A)  occur more frequently in women than in men 
B)  occur more frequently in men than in women 
C)  occurrence is approximately equal between men and women 
D)  frequency between men and women is sport specific A

Question 4

List the four major ligaments of the knee, describe the location of each and explain the role each one plays in providing stability to the joint.

Accepted Answer

The four major ligaments of the knee are

Question 5

Discuss anterior cruciate ligament injuries, including probable causes, most commonly affected persons, symptoms and treatment options.

Accepted Answer

Anterior cruciate ligament (ACL) injurie

Question 6

Which of the following is the most common of all knee injuries?

Accepted Answer

A)  rupture of the anterior cruciate ligament 
B)  rupture of the medial collateral ligament 
C)  tear of the lateral meniscus 
D)  tear of the medial meniscus 
A)  rupture of the anterior cruciate ligament 
B)  rupture of the medial collateral ligament 
C)  tear of the lateral meniscus 
D)  tear of the medial meniscus

Question 7

Which of the following is not a hamstring muscle?

Accepted Answer

A)  semimembranosus 
B)  semitendinosus 
C)  biceps femoris 
D)  gluteus maximus 
A)  semimembranosus 
B)  semitendinosus 
C)  biceps femoris 
D)  gluteus maximus

Question 8

Knee extensors cross the joint _______ to the _______ axis.

Accepted Answer

A)  anterior, anteroposterior 
B)  posterior, anteroposterior 
C)  anterior, mediolateral 
D)  posterior, mediolateral 
A)  anterior, anteroposterior 
B)  posterior, anteroposterior 
C)  anterior, mediolateral 
D)  posterior, mediolateral

Question 9

Anterior pelvic tilt positions the acetabulum in a more favorable position for hip ______.

Accepted Answer

A)  flexion 
B)  hyperextension 
C)  abduction 
D)  adduction 
A)  flexion 
B)  hyperextension 
C)  abduction 
D)  adduction

Question 10

Which muscle does not affect both the hip and the knee?

Accepted Answer

A)  rectus femoris 
B)  vastus intermedius 
C)  biceps femoris 
D)  semimembranosus 
A)  rectus femoris 
B)  vastus intermedius 
C)  biceps femoris 
D)  semimembranosus

Question 11

Supination of the foot combines the motions of ___________________, ___________________, and ___________________ ___________________.

Accepted Answer

inversion,

Question 12

Which of the following characterizes a "bow-legged" condition?

Accepted Answer

A)  femoral varus and tibial valgus 
B)  femoral valgus and tibial varus 
C)  both A and B 
D)  none of the above 
A)  femoral varus and tibial valgus 
B)  femoral valgus and tibial varus 
C)  both A and B 
D)  none of the above

Question 13

The three hamstring muscles are ___________________, ___________________, and ___________________.

Accepted Answer

biceps fem

Question 14

Runner's knee is associated with which of the following structures?

Accepted Answer

A)  lateral meniscus 
B)  ACL 
C)  iliotibial band 
D)  medial meniscus 
A)  lateral meniscus 
B)  ACL 
C)  iliotibial band 
D)  medial meniscus

Question 15

The lower extremity is well structured for its functions of weight __________________ and __________________.

Accepted Answer

The answer of The lower extremity is well structured for...

Question 16

The medial and lateral collateral ligaments limit which type of knee motion?

Accepted Answer

A)  knee hyperextension 
B)  forward and backward sliding of the femur on the tibia during knee flexion and extension 
C)  lateral knee motion 
D)  both A and B 
E)  all of the above 
A)  knee hyperextension 
B)  forward and backward sliding of the femur on the tibia during knee flexion and extension 
C)  lateral knee motion 
D)  both A and B 
E)  all of the above

Question 17

Which of the following muscles serves to "unlock" the knee from full extension?

Accepted Answer

A)  plantaris 
B)  gracilis 
C)  popliteus 
D)  sartorius 
A)  plantaris 
B)  gracilis 
C)  popliteus 
D)  sartorius

Question 18

Which of the following statements is/are true?

Accepted Answer

A)  When the knee undergoes a significant amount of flexion, it is necessary for the femur to slide forward on the tibia in order to prevent its rolling off of the tibial plateau. 
B)  During extension, the femur must slide backwards on the tibia. 
C)  both A and B 
D)  none of the above 
A)  When the knee undergoes a significant amount of flexion, it is necessary for the femur to slide forward on the tibia in order to prevent its rolling off of the tibial plateau. 
B)  During extension, the femur must slide backwards on the tibia. 
C)  both A and B 
D)  none of the above

Question 19

Which of the following is not true about the hip joint?

Accepted Answer

A)  triaxial 
B)  more stable than shoulder 
C)  several bursae present 
D)  all of the above are true 
A)  triaxial 
B)  more stable than shoulder 
C)  several bursae present 
D)  all of the above are true

Question 20

Which of the following conditions must be met for rotation of the tibia relative to the femur?

Accepted Answer

A)  the knee is not bearing weight 
B)  the knee is in flexion 
C)  the knee is in extension 
D)  both A and B 
E)  all of the above 
A)  the knee is not bearing weight 
B)  the knee is in flexion 
C)  the knee is in extension 
D)  both A and B 
E)  all of the above

Hip fractures among the elderly greatly increase the risk of death.

List and describe the four quadriceps muscles, including location, actions, and possible injury implications in the case of imbalance.

Which of the following statements is true regarding ACL injuries?

List the four major ligaments of the knee, describe the location of each and explain the role each one plays in providing stability to the joint.

Discuss anterior cruciate ligament injuries, including probable causes, most commonly affected persons, symptoms and treatment options.

Which of the following is the most common of all knee injuries?

Which of the following is not a hamstring muscle?

Knee extensors cross the joint _ to the _ axis.

Anterior pelvic tilt positions the acetabulum in a more favorable position for hip ______.

Which muscle does not affect both the hip and the knee?

Supination of the foot combines the motions of _________, _, and _ _________.

Which of the following characterizes a "bow-legged" condition?

The three hamstring muscles are _________, _, and ___________.

Runner's knee is associated with which of the following structures?

The lower extremity is well structured for its functions of weight and .

The medial and lateral collateral ligaments limit which type of knee motion?

Which of the following muscles serves to "unlock" the knee from full extension?

Which of the following statements is/are true?

Which of the following is not true about the hip joint?

Which of the following conditions must be met for rotation of the tibia relative to the femur?

What Is Biomechanics

Kinematic Concepts for Analyzing Human Motion

Kinetic Concepts for Analyzing Human Motion

The Biomechanics of Human Bone Growth and Development

The Biomechanics of Human Skeletal Articulations

The Biomechanics of Human Skeletal Muscle

The Biomechanics of the Human Upper Extremity

The Biomechanics of the Human Spine

Linear Kinematics of Human Movement

Angular Kinematics of Human Movement

Linear Kinetics of Human Movement

Equilibrium and Human Movement

Angular Kinetics of Human Movement

Human Movement in a Fluid Medium

Filters

Exam 8: The Biomechanics of the Human Lower Extremity

Hip fractures among the elderly greatly increase the risk of death.

List and describe the four quadriceps muscles, including location, actions, and possible injury implications in the case of imbalance.

Which of the following statements is true regarding ACL injuries?

List the four major ligaments of the knee, describe the location of each and explain the role each one plays in providing stability to the joint.

Discuss anterior cruciate ligament injuries, including probable causes, most commonly affected persons, symptoms and treatment options.

Which of the following is the most common of all knee injuries?

Which of the following is not a hamstring muscle?

Knee extensors cross the joint _______ to the _______ axis.

Anterior pelvic tilt positions the acetabulum in a more favorable position for hip ______.

Which muscle does not affect both the hip and the knee?

Supination of the foot combines the motions of ___________________, ___________________, and ___________________ ___________________.

Which of the following characterizes a "bow-legged" condition?

The three hamstring muscles are ___________________, ___________________, and ___________________.

Runner's knee is associated with which of the following structures?

The lower extremity is well structured for its functions of weight __________________ and __________________.

The medial and lateral collateral ligaments limit which type of knee motion?

Which of the following muscles serves to "unlock" the knee from full extension?

Which of the following statements is/are true?

Which of the following is not true about the hip joint?

Which of the following conditions must be met for rotation of the tibia relative to the femur?

What Is Biomechanics

Kinematic Concepts for Analyzing Human Motion

Kinetic Concepts for Analyzing Human Motion

The Biomechanics of Human Bone Growth and Development

The Biomechanics of Human Skeletal Articulations

The Biomechanics of Human Skeletal Muscle

The Biomechanics of the Human Upper Extremity

The Biomechanics of the Human Spine

Linear Kinematics of Human Movement

Angular Kinematics of Human Movement

Linear Kinetics of Human Movement

Equilibrium and Human Movement

Angular Kinetics of Human Movement

Human Movement in a Fluid Medium

Filters

Knee extensors cross the joint _ to the _ axis.

Supination of the foot combines the motions of _________, _, and _ _________.

The three hamstring muscles are _________, _, and ___________.

The lower extremity is well structured for its functions of weight and .