Skeletal System Questions: Quiz
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Questions and Answers
- 1.
What is the name of the first cervical vertebrae?
- A.
Atlas
- B.
Axis
Correct Answer
A. AtlasExplanation
The first cervical vertebrae is called the Atlas. It is named after the mythological figure Atlas, who was said to carry the weight of the world on his shoulders. The Atlas is responsible for supporting the weight of the skull and allowing for nodding movements of the head. It is unique among the vertebrae as it lacks a body and instead consists of a ring-like structure with two large lateral masses. This design allows for a greater range of motion compared to other vertebrae.Rate this question:
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- 2.
Which of the following is not a function of the skeleton?
- A.
Shape
- B.
Storage of proteins
- C.
Storage of fat
- D.
Production of blood cells
Correct Answer
B. Storage of proteinsExplanation
The skeleton is responsible for providing shape and support to the body, storing minerals such as calcium and phosphorus, and producing blood cells through the bone marrow. However, it does not have a direct function in the storage of proteins. Proteins are primarily stored in cells and tissues throughout the body, not specifically within the skeletal system.Rate this question:
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- 3.
The talus is an example of a tarsal bone.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The talus is indeed an example of a tarsal bone. Tarsal bones are a group of seven bones that make up the ankle and heel region of the foot. The talus is the second largest bone in the foot and plays a crucial role in connecting the leg to the foot. It articulates with the tibia and fibula to form the ankle joint and also provides support and stability for the foot. Therefore, it is correct to say that the talus is a tarsal bone.Rate this question:
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- 4.
Which of the following is an example of a hinge joint?
- A.
Phalanges
- B.
Hip
- C.
Sacro-iliac
- D.
Thumb & 1st metacarpal
Correct Answer
A. PhalangesExplanation
Phalanges is an example of a hinge joint because hinge joints allow movement in only one plane, like a door hinge. The phalanges, which are the bones in the fingers and toes, have hinge joints that allow flexion and extension movements, similar to opening and closing a door.Rate this question:
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- 5.
Which of the following is a correct list of carpal bones?
- A.
Scaphoid, scapula, pisiform, trapezius
- B.
Scaphoid, lunate, capitate, navicular
- C.
Lunate, capitate, Scaphoid, calcaneum
- D.
Scaphoid, pisiform, trapezoid, hamate
Correct Answer
D. Scaphoid, pisiform, trapezoid, hamate -
- 6.
The tempro-mandibular joint is an example of a synovial (diarthrotic joint).
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The temporomandibular joint is indeed an example of a synovial joint. Synovial joints are characterized by the presence of a synovial cavity, which is filled with synovial fluid that lubricates and nourishes the joint. These joints allow for a wide range of movement and are found in various parts of the body, including the jaw. Therefore, the statement is true.Rate this question:
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- 7.
How many bones make up the axial skeleton
- A.
206
- B.
80
- C.
126
- D.
33
Correct Answer
B. 80Explanation
The given correct answer, 80, is incorrect. The axial skeleton is composed of 80 bones, which include the skull, vertebral column, and thoracic cage. However, the correct answer is 206. The human body has a total of 206 bones, with the axial skeleton accounting for only a portion of them.Rate this question:
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- 8.
The vertebrae are examples of which type of bone?
- A.
Flat
- B.
Short
- C.
Long
- D.
Irregular
Correct Answer
D. IrregularExplanation
The vertebrae are examples of irregular bones because they have complex shapes with irregular surfaces. Irregular bones do not fit into the other categories of bone shapes (flat, short, or long) and have unique structures that serve specific purposes, such as protecting vital organs or providing attachment points for muscles.Rate this question:
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- 9.
The skull bones are an example of which type of joint?
- A.
Synarthrotic or fixed
- B.
Amphiarthrotic or cartilaginous
- C.
Diarthrotic or synovial
Correct Answer
A. Synarthrotic or fixedExplanation
The skull bones are an example of a synarthrotic or fixed joint because they are immovable and tightly fused together. This type of joint provides stability and protection for the brain.Rate this question:
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- 10.
A cartiliginous joint is capable of what kind of movement?
- A.
None
- B.
Some / Semi-moveable
- C.
Freely moveable
Correct Answer
B. Some / Semi-moveableExplanation
A cartilaginous joint is capable of some or semi-moveable movement. Cartilaginous joints are connected by cartilage, which allows for limited movement. These joints provide stability and support to the body while allowing for slight movement, such as bending or twisting. Unlike freely movable joints, such as the synovial joints, cartilaginous joints have less mobility due to the presence of cartilage between the bones.Rate this question:
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- 11.
Which of the following is an example of a saddle joint?
- A.
Thumb & 1st metacarpal
- B.
Atlas & axis
- C.
Patella & femur
- D.
Atlas & occipital
Correct Answer
A. Thumb & 1st metacarpalExplanation
The saddle joint is a type of synovial joint that allows movement in multiple directions. It is characterized by two bones that have concave and convex surfaces, resembling a saddle. The joint between the thumb and the first metacarpal is an example of a saddle joint because the trapezium bone of the wrist has a saddle-shaped surface that articulates with the convex surface of the first metacarpal bone. This joint allows for a wide range of movements, including flexion, extension, abduction, adduction, and opposition of the thumb.Rate this question:
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- 12.
Which type of movement at a joint allows the feet to turn outwards
- A.
Dorsiflexion
- B.
Plantarflexion
- C.
Inversion
- D.
Eversion
Correct Answer
D. EversionExplanation
Eversion is the type of movement at a joint that allows the feet to turn outwards. This movement involves the sole of the foot turning away from the midline of the body. It is the opposite movement of inversion, which involves the sole of the foot turning towards the midline. Dorsiflexion refers to the movement of bringing the top of the foot towards the shin, while plantarflexion refers to the movement of pointing the toes downwards. Therefore, the correct answer is eversion.Rate this question:
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- 13.
Which type of movement at a joint allows the movement of a limb away from the midline?
- A.
Abduction
- B.
Adduction
- C.
Inversion
- D.
Eversion
Correct Answer
A. AbductionExplanation
Abduction is the correct answer because it refers to the movement of a limb away from the midline of the body. This type of movement occurs in joints such as the shoulder or hip, where the limb moves away from the center of the body. Adduction, on the other hand, refers to the movement of a limb towards the midline. Inversion and eversion refer to movements of the foot, not the limb as a whole.Rate this question:
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- 14.
Which type of fracture is open and results in the broken ends of the bones protuding through the skin?
- A.
Compound
- B.
Stress
Correct Answer
A. CompoundExplanation
A compound fracture, also known as an open fracture, occurs when the broken ends of the bones protrude through the skin. This type of fracture is more severe and has a higher risk of infection compared to other types of fractures.Rate this question:
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- 15.
Which type of arthritis ius characterised by the breakdown of articular cartilage in the joint?
- A.
Rheumatoid arthritis
- B.
Osteoarthritis
- C.
Gout
- D.
Ankylosing spondylitis
Correct Answer
B. OsteoarthritisExplanation
Osteoarthritis is characterized by the breakdown of articular cartilage in the joint. This type of arthritis occurs when the cartilage that cushions the ends of bones in the joint gradually deteriorates, leading to pain, stiffness, and reduced mobility. Unlike rheumatoid arthritis, which is an autoimmune disease, osteoarthritis is primarily caused by wear and tear on the joints over time. Gout is a form of arthritis caused by the buildup of uric acid crystals in the joints, while ankylosing spondylitis primarily affects the spine and sacroiliac joints.Rate this question:
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- 16.
Which pathology of the spine causes a lateral curvature of the spine?
- A.
Lordosis
- B.
Kyphosis
- C.
Scoliosis
Correct Answer
C. ScoliosisExplanation
Scoliosis is the correct answer because it is a pathology of the spine that causes a lateral curvature. Lordosis refers to an excessive inward curvature of the spine, while kyphosis refers to an excessive outward curvature of the spine.Rate this question:
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- 17.
Which joint movement straightens a body part?
- A.
Flexion
- B.
Extension
- C.
Pronation
- D.
Supination
Correct Answer
B. ExtensionExplanation
Extension is the joint movement that straightens a body part. It involves increasing the angle between two bones or parts of the body, typically in the opposite direction of flexion. For example, when you straighten your arm from a bent position, you are performing extension at the elbow joint. Similarly, when you straighten your leg from a bent position, you are performing extension at the knee joint.Rate this question:
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- 18.
What is the name for the long shaft part of a bone?
- A.
Diaphysis
- B.
Epiphysis
- C.
Periosteum
Correct Answer
A. DiaphysisExplanation
The diaphysis is the correct answer because it refers to the long shaft part of a bone. It is the main cylindrical portion of a long bone, located between the two ends called epiphyses. The diaphysis is composed mainly of compact bone, providing strength and support to the bone structure. It also contains the medullary cavity, which is filled with bone marrow. The other options, epiphysis and periosteum, are incorrect as they refer to different parts of the bone.Rate this question:
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- 19.
What is the name for the ends of a long bone, which is covered in articular cartilage?
- A.
Diaphysis
- B.
Epiphysis
- C.
Periosteum
Correct Answer
B. EpiphysisExplanation
The ends of a long bone that are covered in articular cartilage are called epiphysis. The epiphysis is responsible for forming joints with other bones and provides a smooth surface for movement. It is composed of spongy bone and contains red bone marrow, which produces blood cells. The articular cartilage helps to reduce friction and absorb shock during movement.Rate this question:
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- 20.
What is the name of the membrane of a bone?
- A.
Diaphysis
- B.
Epiphysis
- C.
Periosteum
Correct Answer
C. PeriosteumExplanation
The periosteum is the correct answer because it is the membrane that covers the outer surface of bones. It is a dense, fibrous connective tissue that provides protection and support to the bone. The periosteum also plays a crucial role in bone growth, repair, and nutrition by containing blood vessels and nerves that supply the bone.Rate this question:
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- 21.
Which is the largest bone of the pelvis?
- A.
Ilium
- B.
Ischium
- C.
Pubis
Correct Answer
A. IliumExplanation
The ilium is the largest bone of the pelvis. It forms the uppermost and largest part of the hip bone. It is located on each side of the pelvis and contributes to the acetabulum, which is the socket of the hip joint. The ilium provides support and stability to the pelvis and helps to transfer weight from the upper body to the lower limbs.Rate this question:
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- 22.
Which skeleton are the legs part of?
- A.
Axial
- B.
Appendicular
Correct Answer
B. AppendicularExplanation
The legs are part of the appendicular skeleton, which includes the bones of the limbs and the girdles that attach the limbs to the axial skeleton. The appendicular skeleton is responsible for movement and support, while the axial skeleton consists of the bones that make up the central axis of the body, such as the skull, vertebral column, and rib cage.Rate this question:
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- 23.
How many tarsal bones do humans have?
- A.
6
- B.
7
- C.
8
- D.
9
Correct Answer
B. 7Explanation
Humans have 7 tarsal bones. The tarsal bones are located in the foot and are responsible for providing stability and support. They include the calcaneus, talus, navicular, cuboid, and the three cuneiform bones. These bones work together to allow for movement and flexibility in the foot while also providing a strong foundation for walking and standing.Rate this question:
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- 24.
The pathology osteoporosis is caused by ageing and the lack of which hormone?
- A.
Oestrogen
- B.
Progesterone
- C.
Adrenaline
- D.
Thyroxine
Correct Answer
A. OestrogenExplanation
Osteoporosis is a condition characterized by the loss of bone density, making bones weak and brittle. It is more common in postmenopausal women, suggesting a link with hormonal changes. Estrogen, a hormone primarily produced by the ovaries, plays a crucial role in maintaining bone health. As women age and go through menopause, estrogen levels decline, leading to an increased risk of osteoporosis. Therefore, the lack of estrogen is a significant contributing factor to the development of osteoporosis.Rate this question:
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- 25.
Which pathology of the spine causes an increased outward curvature of the thoracic spine?
- A.
Lordosis
- B.
Kyphosis
- C.
Scoliosis
Correct Answer
B. KyphosisExplanation
Kyphosis is the correct answer because it refers to an increased outward curvature of the thoracic spine. It is a condition where the spine curves forward, causing a hunchback or rounded back appearance. Lordosis, on the other hand, is an increased inward curvature of the spine, while scoliosis is a sideways curvature of the spine.Rate this question:
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- 26.
Gout is caused by a build up of which acid?
- A.
Lactic
- B.
Uric
- C.
Hydrochloric
Correct Answer
B. UricExplanation
Gout is caused by a build-up of uric acid. Uric acid is a waste product that is produced when the body breaks down purines, which are substances found in certain foods and drinks. When there is an excess of uric acid in the body, it can form crystals in the joints, leading to the painful symptoms of gout. This build-up of uric acid can be caused by various factors such as genetics, diet, obesity, and certain medical conditions. Treatment for gout often involves medications to reduce uric acid levels and lifestyle changes to manage the condition.Rate this question:
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- 27.
Which movement at a joint allows for a full circle - 360 degrees ?
- A.
Medial rotation
- B.
Lateral rotation
- C.
Circumduction
Correct Answer
C. CircumductionExplanation
Circumduction is the movement at a joint that allows for a full circle or 360 degrees of rotation. This movement involves the combination of flexion, extension, abduction, and adduction, resulting in a circular motion. It is commonly seen in ball-and-socket joints like the shoulder and hip, where the joint allows for a wide range of movement in multiple planes. Medial and lateral rotation, on the other hand, refer to the rotation of a body part towards or away from the midline, respectively, and do not involve a full circle of movement.Rate this question:
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- 28.
The phalanges are an example of which type of bone?
- A.
Long
- B.
Short
- C.
Flat
- D.
Irregular
- E.
Sesamoid
Correct Answer
A. LongExplanation
The phalanges are the bones found in the fingers and toes, and they are classified as long bones. Long bones are characterized by their elongated shape, with a shaft (diaphysis) and two expanded ends (epiphyses). They provide support, facilitate movement, and serve as a site for muscle attachment. The phalanges meet the criteria of long bones as they have a distinct shaft and epiphyses.Rate this question:
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- 29.
How many vertebrae are found in the thoracic section of the spine?
- A.
7
- B.
5
- C.
4
- D.
12
Correct Answer
D. 12Explanation
The thoracic section of the spine consists of 12 vertebrae. These vertebrae are located in the upper and middle back region and are larger and stronger compared to the vertebrae in other sections of the spine. The thoracic vertebrae are responsible for providing support and stability to the rib cage and protecting the organs in the chest cavity.Rate this question:
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- 30.
Which are the smallest facial bones, found in the orbital cavity?
- A.
Lacrimal
- B.
Zygomatic
- C.
Nasal
- D.
Palatine
Correct Answer
A. LacrimalExplanation
The lacrimal bones are the smallest facial bones found in the orbital cavity. They are located on the inner side of the eye sockets and contribute to the formation of the tear ducts. These bones are delicate and help protect the eyes by forming a part of the bony orbit.Rate this question:
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- 31.
Which facial bones form the anterior part of the roof of the mouth?
- A.
Lacrimal
- B.
Maxillae
- C.
Mandible
- D.
Palatine
Correct Answer
D. PalatineExplanation
The palatine bones form the anterior part of the roof of the mouth. These bones are located at the back of the nasal cavity and help to separate the oral and nasal cavities. They contribute to the formation of the hard palate, which is the bony structure that forms the roof of the mouth. The palatine bones also play a role in the formation of the nasal cavity and the orbit (eye socket).Rate this question:
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- 32.
Which is the largest bone in the lower leg?
- A.
Tibia
- B.
Fibula
Correct Answer
A. TibiaExplanation
The tibia is the largest bone in the lower leg. It is located on the inner side of the leg and is commonly known as the shinbone. The tibia is responsible for bearing most of the body's weight and providing stability and support to the leg. It is larger and stronger than the fibula, which is the smaller bone located on the outer side of the leg.Rate this question:
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- 33.
An example of a pivot joint is between the atlas and the axis.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The atlas and axis are two vertebrae in the neck that allow for rotation of the head. This type of joint, known as a pivot joint, allows for movement in only one plane, which is rotation in this case. The atlas and axis are specifically designed to allow for this type of movement, making them an example of a pivot joint. Therefore, the statement is true.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
Mar 30, 2011Quiz Created by
Keb1980
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