YMCA L3 Anatomy - Joint Structures

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YMCA L3 Anatomy - Joint Structures - Quiz

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Questions and Answers
  • 1. 

    The shoulder girdle is the combination of which two bones?

    • A.

      Clavicle and scapula

    • B.

      Scapula and sternum

    • C.

      Humerus and clavicle

    • D.

      Clavicle and sternum

    Correct Answer
    A. Clavicle and scapula
    Explanation
    The shoulder girdle is composed of the clavicle and scapula. These two bones work together to provide stability and mobility to the shoulder joint. The clavicle, also known as the collarbone, connects the sternum to the scapula, while the scapula, also known as the shoulder blade, is a flat bone that rests on the back of the ribcage. Together, the clavicle and scapula form the bony framework of the shoulder, allowing for various movements of the arm.

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  • 2. 

    The bony end of the scapula is known as the 

    • A.

      Acromion process

    • B.

      Glenoid cavity

    • C.

      Glenohumeral joint

    • D.

      AC joint

    Correct Answer
    A. Acromion process
    Explanation
    The bony end of the scapula is known as the acromion process. The acromion process is a prominent projection that forms the highest point of the shoulder. It is an important landmark for various muscles and ligaments that attach to it, providing stability and mobility to the shoulder joint. The acromion process also helps protect the underlying structures of the shoulder, such as the rotator cuff tendons.

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  • 3. 

    The area of the shoulder girdle where the head of the humerus fits is known as the 

    • A.

      Glenoid cavity

    • B.

      Acromioclavicular joint

    • C.

      Acromion process

    • D.

      Proximal cavity

    Correct Answer
    A. Glenoid cavity
    Explanation
    The area of the shoulder girdle where the head of the humerus fits is known as the glenoid cavity. This is a shallow, concave depression on the lateral aspect of the scapula. It forms the socket for the ball-and-socket joint of the shoulder, allowing for a wide range of motion in the arm. The glenoid cavity is surrounded by the labrum, a fibrous ring of cartilage that helps stabilize the joint.

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  • 4. 

    What is the name of the bone in the upper arm?

    • A.

      Humerus

    • B.

      Clavicle

    • C.

      Radius

    • D.

      Ulna

    Correct Answer
    A. Humerus
    Explanation
    The correct answer is Humerus. The humerus is the bone located in the upper arm. It is the longest bone in the upper body and connects the shoulder to the elbow. The humerus plays a vital role in allowing movement and flexibility of the arm.

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  • 5. 

    What is the name of the group of muscles that give the shoulder its stability?

    • A.

      Rotator cuff

    • B.

      Glenohumeral

    • C.

      Acromial

    • D.

      Radioulnar

    Correct Answer
    A. Rotator cuff
    Explanation
    The rotator cuff is a group of muscles and tendons that surround the shoulder joint, providing stability and allowing for a wide range of motion. These muscles include the supraspinatus, infraspinatus, teres minor, and subscapularis. They work together to help hold the head of the humerus (upper arm bone) securely in the shoulder socket, preventing dislocation and providing stability during movement. The other options, Glenohumeral, Acromial, and Radioulnar, do not specifically refer to the group of muscles that give the shoulder its stability.

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  • 6. 

    What type of bones are the radius and ulna?

    • A.

      Long

    • B.

      Short

    • C.

      Flat

    • D.

      Sesamoid

    Correct Answer
    A. Long
    Explanation
    The radius and ulna are classified as long bones. Long bones are characterized by their elongated shape and consist of a shaft (diaphysis) and two ends (epiphyses). They provide support, mobility, and strength to the body. The radius and ulna are located in the forearm and are responsible for forearm rotation and movement.

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  • 7. 

    What are the two bones in the lower arm?

    • A.

      Radius/ulna

    • B.

      Clavicle/scapula

    • C.

      Tibia/fibula

    • D.

      Humerus/carpals

    Correct Answer
    A. Radius/ulna
    Explanation
    The correct answer is Radius/ulna. The lower arm consists of two bones, the radius and the ulna. The radius is located on the thumb side of the forearm and is responsible for rotating the forearm and allowing movement of the wrist. The ulna is located on the pinky side of the forearm and is responsible for stability and support of the forearm. Together, these two bones work in tandem to provide strength and flexibility to the lower arm.

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  • 8. 

    What type of joint is found at the radioulnar joint?

    • A.

      Pivot

    • B.

      Hinge

    • C.

      Gliding

    • D.

      Ball and socket

    Correct Answer
    A. Pivot
    Explanation
    The radioulnar joint is a type of joint that allows for rotation of the forearm. It is formed by the articulation between the radius and ulna bones. A pivot joint is characterized by a rounded or pointed surface of one bone fitting into a ring or notch of another bone, allowing for rotational movement. In the case of the radioulnar joint, the rounded head of the radius bone rotates within a ring-shaped ligament called the annular ligament, making pivot joint the correct answer.

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  • 9. 

    Which bone in the arm articulates with the carpal bones?

    • A.

      Radius

    • B.

      Ulna

    • C.

      Phalanges

    • D.

      Humerus

    Correct Answer
    A. Radius
    Explanation
    The radius is the bone in the arm that articulates with the carpal bones. This is because the radius is located on the thumb side of the forearm and forms a joint with the carpal bones of the wrist. The ulna, phalanges, and humerus are also bones in the arm, but they do not directly articulate with the carpal bones.

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  • 10. 

    Which type of joint is found at the wrist?

    • A.

      Condyloid

    • B.

      Sesamoid

    • C.

      Hinge

    • D.

      Pivot

    Correct Answer
    A. Condyloid
    Explanation
    A condyloid joint is found at the wrist. This type of joint allows for movement in two planes, allowing flexion, extension, adduction, abduction, and circumduction. The wrist joint is formed by the articulation between the radius and ulna bones of the forearm and the carpal bones of the hand. This joint allows for a wide range of movements, making it suitable for activities such as grasping, twisting, and bending the wrist.

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  • 11. 

    How many bones are found in the hand?

    • A.

      27

    • B.

      33

    • C.

      30

    • D.

      25

    Correct Answer
    A. 27
    Explanation
    The hand consists of 27 bones. These bones include the eight carpal bones in the wrist, the five metacarpal bones in the palm, and the fourteen phalanges in the fingers.

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  • 12. 

    What type of joint is found in the carpals giving it a large degree of flexibility?

    • A.

      Gliding

    • B.

      Hinge

    • C.

      Pivot

    • D.

      Saddle

    Correct Answer
    A. Gliding
    Explanation
    The carpals, which are the bones in the wrist, have a gliding joint. This type of joint allows for a large degree of flexibility and movement in multiple directions. The bones in a gliding joint slide past each other, allowing for smooth and controlled movement. This type of joint is ideal for the wrist, as it allows for the wide range of motions needed for activities such as writing, typing, and playing sports.

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  • 13. 

    The articulation between thumb and first metacarpal is a

    • A.

      Saddle joint

    • B.

      Condyloid joint

    • C.

      Gliding joint

    • D.

      Pivot joint

    Correct Answer
    A. Saddle joint
    Explanation
    The articulation between the thumb and first metacarpal is a saddle joint. This type of joint allows movement in two planes, making it highly mobile. The shape of the joint surfaces resembles a saddle, with one surface concave and the other convex. This allows for a wide range of movement, including flexion, extension, abduction, adduction, and opposition. The saddle joint in the thumb is particularly important for fine motor skills and precision grip.

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  • 14. 

    What is a common injury of the wrist and palm?

    • A.

      Carpal tunnel syndrome

    • B.

      Dislocation

    • C.

      Fracture

    • D.

      Trapped nerve

    Correct Answer
    A. Carpal tunnel syndrome
    Explanation
    Carpal tunnel syndrome is a common injury of the wrist and palm. It occurs when the median nerve, which runs through the carpal tunnel in the wrist, becomes compressed or squeezed. This can cause symptoms such as pain, numbness, and tingling in the wrist, palm, and fingers. It is often caused by repetitive hand movements or certain medical conditions. Treatment options include rest, splinting, medication, and in severe cases, surgery.

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  • 15. 

    How many separate bones are found in the vertebral column?

    • A.

      33

    • B.

      27

    • C.

      30

    • D.

      35

    Correct Answer
    A. 33
    Explanation
    The vertebral column, also known as the spine, is made up of a series of individual bones called vertebrae. These vertebrae are stacked on top of each other to form the backbone. In total, there are 33 separate bones found in the vertebral column.

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  • 16. 

    What is the function of the vertebral column?

    • A.

      Weight transmission

    • B.

      Carrying messages

    • C.

      Movemenbt

    • D.

      Hyperextension

    Correct Answer
    A. Weight transmission
    Explanation
    The vertebral column, also known as the spine, serves as a support structure for the body and is responsible for weight transmission. It helps to distribute the weight of the body evenly and efficiently, allowing for proper balance and posture. Additionally, the vertebral column protects the spinal cord, which is responsible for carrying messages between the brain and the rest of the body.

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  • 17. 

    What type of bone is a vertebral disc?

    • A.

      Irregular

    • B.

      Flat

    • C.

      Short

    • D.

      Sesamoid

    Correct Answer
    A. Irregular
    Explanation
    A vertebral disc is a type of bone that is classified as irregular. Irregular bones are those that do not fit into any other category due to their unique shape and structure. In the case of a vertebral disc, it is a flat, circular structure that sits between the vertebrae in the spine. It is made up of a tough outer layer called the annulus fibrosus and a gel-like center called the nucleus pulposus. This irregular shape allows the vertebral disc to provide cushioning and flexibility to the spine, allowing for movement and shock absorption.

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  • 18. 

    Stacked vertebrae provide a protective channel through which the spinal cord runs called…..

    • A.

      Vertebral foramen

    • B.

      Spinous process

    • C.

      Centrum

    • D.

      Transverse process

    Correct Answer
    A. Vertebral foramen
    Explanation
    Stacked vertebrae provide a protective channel called the vertebral foramen through which the spinal cord runs. The vertebral foramen is a hollow space formed by the vertebral arches of adjacent vertebrae. It allows for the passage of the spinal cord and spinal nerves, providing protection from external forces. The stacked arrangement of vertebrae and the presence of the vertebral foramen ensure the safety and proper functioning of the spinal cord.

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  • 19. 

    What area of the spine has the largest number of vertebrae?

    • A.

      Thoracic

    • B.

      Cervical

    • C.

      Sacral

    • D.

      Lumbar

    Correct Answer
    A. Thoracic
    Explanation
    The thoracic area of the spine has the largest number of vertebrae. The thoracic spine is located in the upper and middle back and consists of 12 vertebrae. These vertebrae are larger and stronger compared to the cervical and lumbar vertebrae. The thoracic spine is responsible for providing stability and protecting the vital organs in the chest, such as the heart and lungs.

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  • 20. 

    Which area of the vertebral column is the most moveable area?

    • A.

      Thoracic

    • B.

      Cervical

    • C.

      Sacral

    • D.

      Lumbar

    Correct Answer
    A. Thoracic
    Explanation
    The thoracic area of the vertebral column is the most moveable area. This is because the thoracic vertebrae are located in the middle of the spine and are designed to allow for a greater range of motion compared to the other regions. The thoracic vertebrae have more flexibility and mobility, allowing for movements such as bending, twisting, and rotating. The cervical area, although also highly mobile, is limited in its range of motion due to its delicate structure and the presence of the spinal cord. The sacral and lumbar areas are less moveable as they are more rigid and provide stability to the spine.

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  • 21. 

    Which are of the vertebral column has to cope with the most impact stress?

    • A.

      Lumbar

    • B.

      Coccyx

    • C.

      Sacral

    • D.

      Thoracic

    Correct Answer
    A. Lumbar
    Explanation
    The lumbar region of the vertebral column has to cope with the most impact stress. This is because the lumbar region is located in the lower back, which is responsible for supporting the weight of the upper body and absorbing the impact forces during activities such as walking, running, and lifting. The lumbar vertebrae are larger and stronger compared to the other regions of the vertebral column, allowing them to withstand the increased stress and provide stability and flexibility to the spine.

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  • 22. 

    The larger of the two bones in the lower leg is

    • A.

      Tibia

    • B.

      Fibula

    • C.

      Femur

    • D.

      Calcaneus

    Correct Answer
    A. Tibia
    Explanation
    The tibia is the larger of the two bones in the lower leg. It is commonly referred to as the shinbone and is located on the inner side of the leg. The tibia is responsible for bearing most of the body's weight and providing stability to the leg. It connects the knee joint to the ankle joint and plays a crucial role in walking, running, and other weight-bearing activities. The fibula, on the other hand, is the smaller bone located on the outer side of the leg and is not directly involved in weight-bearing. The femur is the thigh bone, and the calcaneus is a bone in the foot.

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  • 23. 

    What is the role of the tibia?

    • A.

      Weight transmission

    • B.

      Stabilising the ankle

    • C.

      Knee extension

    • D.

      Articulation with the hip

    Correct Answer
    A. Weight transmission
    Explanation
    The tibia plays a crucial role in weight transmission. As the larger and stronger of the two bones in the lower leg, it bears most of the body's weight and transfers it from the knee to the foot. The tibia acts as a major weight-bearing bone, providing stability and support to the body during activities such as walking, running, and standing. Without the tibia's role in weight transmission, the body would struggle to maintain balance and perform these essential movements.

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  • 24. 

    What type of joint is found at the knee?

    • A.

      Hinge

    • B.

      Pivot

    • C.

      Saddle

    • D.

      Ball and socket

    Correct Answer
    A. Hinge
    Explanation
    A hinge joint is found at the knee. This type of joint allows movement in only one plane, similar to a door hinge. The knee joint allows flexion and extension of the lower leg, enabling us to walk, run, and perform various other movements. The hinge joint is characterized by the articulation between two bones, with one bone having a convex surface that fits into the concave surface of the other bone, allowing for stable and controlled movement.

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  • 25. 

    What do the bursa in the knee help to prevent?

    • A.

      Friction

    • B.

      Carpal tunnel

    • C.

      Hyperextension

    • D.

      Injury

    Correct Answer
    A. Friction
    Explanation
    The bursa in the knee help to prevent friction. Bursae are small fluid-filled sacs located around joints that act as cushions between bones, tendons, and muscles. In the knee, the bursae reduce friction between the bones, tendons, and ligaments, allowing smooth movement of the joint. This helps to prevent damage to the structures within the knee and reduces the risk of injury.

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  • 26. 

    What type of joint is found between the talus and tibia/fibula?

    • A.

      Hinge

    • B.

      Saddle

    • C.

      Pivot

    • D.

      Condyloid

    Correct Answer
    A. Hinge
    Explanation
    The type of joint found between the talus and tibia/fibula is a hinge joint. A hinge joint allows movement in only one plane, similar to the movement of a door hinge. In this case, the talus bone articulates with the tibia and fibula bones, allowing flexion and extension of the foot. This type of joint provides stability and support for walking and other weight-bearing activities.

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  • 27. 

    What type of joint is found at the subtalar joint?

    • A.

      Gliding

    • B.

      Pivot

    • C.

      Hinge

    • D.

      Ball and socket

    Correct Answer
    A. Gliding
    Explanation
    The subtalar joint is a type of joint that allows gliding movement between the talus bone of the foot and the calcaneus bone of the ankle. This joint is responsible for inversion and eversion movements of the foot. Therefore, the correct answer is gliding.

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  • 28. 

    From which bone do the rotator cuff muscles originate?

    • A.

      Scapula

    • B.

      Clavicle

    • C.

      Cranium

    • D.

      Humerus

    Correct Answer
    A. Scapula
    Explanation
    The rotator cuff muscles originate from the scapula. The rotator cuff is a group of muscles and tendons that surround the shoulder joint, providing stability and allowing for a wide range of motion. The scapula, also known as the shoulder blade, is a flat, triangular bone located on the upper back. It is the attachment site for several muscles, including the rotator cuff muscles. These muscles originate from different parts of the scapula and work together to help stabilize and move the shoulder joint.

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  • 29. 

    Which lower leg bone articulates with the femur to form the knee joint?

    • A.

      Tibia

    • B.

      Fibula

    • C.

      Talus

    • D.

      Calcanues

    Correct Answer
    A. Tibia
    Explanation
    The tibia is the correct answer because it is one of the two lower leg bones that articulates with the femur to form the knee joint. The tibia is the larger and stronger of the two bones, and it is commonly referred to as the shinbone. The femur, which is the thigh bone, connects with the top of the tibia at the knee joint, allowing for movement and support.

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  • 30. 

    Which joint structure of the body is most susceptible to injury?

    • A.

      Shoulder

    • B.

      Knee

    • C.

      Ankle

    • D.

      Hip

    Correct Answer
    B. Knee
    Explanation
    The knee joint is the most susceptible to injury due to its complex structure and the amount of stress it endures during daily activities. It is a hinge joint that connects the thigh bone to the shin bone, allowing for bending and straightening movements. The knee joint is also responsible for bearing the body's weight and absorbing impact during movements such as walking, running, and jumping. The combination of its mobility and weight-bearing function makes it vulnerable to various types of injuries, including ligament tears, meniscus tears, and patellofemoral pain syndrome.

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  • 31. 

    Describe the joint between the humerus and ulna?

    • A.

      Hinge

    • B.

      Gliding

    • C.

      Condyloid

    • D.

      Pivot

    Correct Answer
    A. Hinge
    Explanation
    The joint between the humerus and ulna is described as a hinge joint. A hinge joint allows movement in only one plane, similar to the opening and closing of a door. In this case, the hinge joint allows flexion and extension of the forearm, allowing the hand to move towards or away from the body. This type of joint is characterized by the presence of a convex surface on one bone (humerus) and a concave surface on the other bone (ulna), allowing for smooth movement and stability.

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  • 32. 

    What is the name of the joint between the vertebral column and the pelvis?

    • A.

      Sacroiliac

    • B.

      Facet

    • C.

      Fibrous

    • D.

      Coccygeal

    Correct Answer
    A. Sacroiliac
    Explanation
    The sacroiliac joint is the joint between the sacrum (part of the vertebral column) and the ilium (part of the pelvis). It is a strong, synovial joint that provides stability and transfers weight between the upper body and the lower limbs. The joint is reinforced by strong ligaments, allowing for limited movement and absorbing shock during activities such as walking or running.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 15, 2018
    Quiz Created by
    Hodgesd
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