Anatomy Practice Quiz On Skeletal System
Practice quiz on skeletal system with notes taken and credited to chapters 6, 7, and 8 of �Human Anatomy & Physiology, 8th edition, Elain N. Marieb and Katja Hoehn. Adam Graupe student.
Questions and Answers
- 1.
A congetial condiotion involving defective cartilage and bone growth so that the limbs are too short. A form of dwarfism.
- A.
Achondroplasia
- B.
Bony Spur
- C.
Ostealgia
- D.
Osteogensis imperfecta
- E.
Osteomyelitis
- F.
Osteosarcoma
Correct Answer
A. AchondroplasiaExplanation
Achondroplasia is a congenital condition characterized by defective cartilage and bone growth, resulting in abnormally short limbs. It is a form of dwarfism.Rate this question:
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- 2.
Abormal projection from a bone due to bony overgrowth
- A.
Achondroplasia
- B.
Bony Spur
- C.
Ostealgia
- D.
Osteogensis imperfecta
- E.
Osteomyelitis
- F.
Osteosarcoma
Correct Answer
B. Bony SpurExplanation
A bony spur is an abnormal projection that occurs when there is excessive growth of bone. This can happen as a result of various conditions or factors. It is characterized by the formation of a small, pointed outgrowth on the surface of a bone. This can cause pain and discomfort, especially when it rubs against nearby tissues or structures. Bony spurs can develop in different parts of the body, such as the spine, joints, or feet. They are often associated with conditions like osteoarthritis or injury to the bone.Rate this question:
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- 3.
Inflammation of bony tissue
- A.
Achondroplasia
- B.
Bony Spur
- C.
Ostealgia
- D.
Osteogensis imperfecta
- E.
Osteomyelitis
- F.
Osteosarcoma
Correct Answer
C. OstealgiaExplanation
Ostealgia refers to the condition of bone pain, which can be caused by various factors such as inflammation, injury, or infection. In this case, the question states "inflammation of bony tissue," which aligns with the definition of ostealgia. Therefore, ostealgia is the most appropriate answer among the given options.Rate this question:
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- 4.
a brittle bone disease
- A.
Achondroplasia
- B.
Bony Spur
- C.
Ostealgia
- D.
Osteogensis imperfecta
- E.
Osteomyelitis
- F.
Osteosarcoma
Correct Answer
D. Osteogensis imperfectaExplanation
Osteogenesis imperfecta, also known as brittle bone disease, is a genetic disorder characterized by fragile bones that break easily. This condition is caused by a defect in the production of collagen, a protein that provides strength and structure to bones. People with osteogenesis imperfecta often experience frequent fractures, bone deformities, and short stature. The correct answer, "Osteogenesis imperfecta," accurately describes this condition.Rate this question:
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- 5.
Inflammation of bone and bone marrow
- A.
Achondroplasia
- B.
Bony Spur
- C.
Ostealgia
- D.
Osteogensis imperfecta
- E.
Osteomyelitis
- F.
Osteosarcoma
Correct Answer
E. OsteomyelitisExplanation
Osteomyelitis is the correct answer because it refers to the inflammation of bone and bone marrow. It is a serious infection that can occur in any bone in the body, usually caused by bacteria. The infection can spread through the bloodstream or from nearby tissue. Symptoms may include pain, swelling, redness, and fever. Prompt treatment with antibiotics is necessary to prevent further complications.Rate this question:
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- 6.
A form of bone cancer common in those 10-25 years of age.
- A.
Achondroplasia
- B.
Bony Spur
- C.
Ostealgia
- D.
Osteogensis imperfecta
- E.
Osteomyelitis
- F.
Osteosarcoma
Correct Answer
F. OsteosarcomaExplanation
Osteosarcoma is a form of bone cancer that is commonly found in individuals between the ages of 10 and 25. It is characterized by the abnormal growth of cells in the bone, leading to the formation of a tumor. This type of cancer often affects the long bones of the body, such as the arms and legs. Osteosarcoma can cause pain, swelling, and fractures in the affected bone. Treatment typically involves a combination of surgery, chemotherapy, and radiation therapy.Rate this question:
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- 7.
Imbalances in bone formation and resorption underlie all skeletal disorders
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Imbalances in bone formation and resorption are indeed the underlying cause of all skeletal disorders. This means that there is an abnormality in the process of building new bone tissue and breaking down old bone tissue. These imbalances can lead to conditions such as osteoporosis, osteomalacia, and Paget's disease. Therefore, the statement "Imbalances in bone formation and resorption underlie all skeletal disorders" is true.Rate this question:
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- 8.
the skeletal system accounts for what percent of body mass
- A.
10%
- B.
20%
- C.
33%
Correct Answer
B. 20%Explanation
The skeletal system accounts for approximately 20% of body mass. This is because bones are dense and heavy, contributing significantly to overall body weight. The skeletal system not only provides structural support and protection for organs but also plays a crucial role in movement, blood cell production, and mineral storage.Rate this question:
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- 9.
The central wedge that articulates with all other cranial bones
- A.
Sphenoid
- B.
Ethmoid
- C.
Mastoid
Correct Answer
A. SphenoidExplanation
The sphenoid bone is known as the "keystone" bone of the cranium because it articulates with all other cranial bones. It is located at the base of the skull and forms part of the floor of the cranium, as well as the sides of the skull and the orbits of the eyes. Its shape resembles a bat with wings, and it contains several important structures such as the sphenoidal sinuses, sella turcica (which houses the pituitary gland), and the optic canals. Due to its central location and extensive articulations, the sphenoid bone is responsible for providing stability and support to the entire skull.Rate this question:
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- 10.
This bone forms most of the bony area between the nasal cavity and the orbits
- A.
Sphenoid
- B.
Ethmoid
- C.
Mastoid
Correct Answer
B. EthmoidExplanation
The ethmoid bone forms most of the bony area between the nasal cavity and the orbits. It is located at the midline of the skull and consists of a complex structure with numerous air cells and thin bony plates. The ethmoid bone plays a crucial role in separating the nasal cavity from the brain and also provides support to the eye sockets.Rate this question:
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- 11.
The lower jawbone
- A.
Maxilla
- B.
Mandible
- C.
Maxwell
Correct Answer
B. MandibleExplanation
The mandible is the correct answer because it refers to the lower jawbone. The maxilla, on the other hand, refers to the upper jawbone. Maxwell is not related to the jawbone and is an unrelated term. Therefore, the correct answer is mandible.Rate this question:
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- 12.
The upper jawbone
- A.
Maxilla
- B.
Mandible
- C.
Maxwell
Correct Answer
A. MaxillaExplanation
The correct answer is Maxilla. The upper jawbone is called the maxilla. It is a paired bone that forms the upper jaw and contributes to the structure of the face. The maxilla contains the sockets for the upper teeth and also forms part of the nasal cavity and the floor of the eye socket.Rate this question:
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- 13.
The medial walls of each orbit
- A.
Lacrimal
- B.
Palatine
- C.
Vomer
- D.
Nasal
- E.
Inferior Nasal Conchae
Correct Answer
A. LacrimalExplanation
The lacrimal bone is one of the bones that make up the medial walls of each orbit. It is a small, thin bone located near the inner corner of the eye. Its main function is to house the lacrimal sac, which collects tears produced by the lacrimal gland and drains them into the nasal cavity. The lacrimal bone also contributes to the formation of the tear ducts and helps to support and protect the eye.Rate this question:
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- 14.
Form the bridge of the nose
- A.
Lacrimal
- B.
Palatine
- C.
Vomer
- D.
Nasal
- E.
Inferior Nasal Conchae
Correct Answer
D. NasalExplanation
The correct answer is "Nasal" because it is the bone that forms the bridge of the nose. The other options listed are different bones in the skull, but they do not specifically contribute to the formation of the nose bridge.Rate this question:
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- 15.
L-shapped nasal cavity bone that is formed by perpendicular and horizontal plates
- A.
Lacrimal
- B.
Palatine
- C.
Vomer
- D.
Nasal
- E.
Inferior Nasal Conchae
Correct Answer
B. PalatineExplanation
The correct answer is Palatine. The palatine bone is an L-shaped bone that forms part of the nasal cavity. It is composed of perpendicular and horizontal plates that contribute to the structure of the nasal cavity. The perpendicular plate forms the posterior part of the nasal septum, while the horizontal plate forms the posterior part of the hard palate.Rate this question:
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- 16.
Inferior part of the nasal septum
- A.
Lacrimal
- B.
Palatine
- C.
Vomer
- D.
Nasal
- E.
Inferior Nasal Conchae
Correct Answer
C. VomerExplanation
The correct answer is Vomer. The vomer is a bone in the skull that forms the inferior part of the nasal septum. It helps to separate the left and right nasal cavities.Rate this question:
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- 17.
The keystone bones of the face that form the upper jaw and parts of the hard palate, orbits, and nasal cavity walls.
- A.
Mandible
- B.
Zygomatic
- C.
Maxilla
Correct Answer
C. MaxillaExplanation
The correct answer is Maxilla. The maxilla is a keystone bone of the face that forms the upper jaw and parts of the hard palate, orbits, and nasal cavity walls. It is responsible for providing structural support to these areas and contributes to the overall shape and function of the face.Rate this question:
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- 18.
The medial bone of the forearm
- A.
Ulna
- B.
Radius
- C.
Humerus
Correct Answer
A. UlnaExplanation
The ulna is the correct answer because it is one of the two bones in the forearm, along with the radius. The ulna is located on the medial side of the forearm, while the radius is on the lateral side. The ulna is longer and larger than the radius and is responsible for forming the elbow joint with the humerus bone. It also plays a role in forearm rotation and provides attachment points for muscles and ligaments.Rate this question:
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- 19.
The lateral bone of the forearm
- A.
Ulna
- B.
Radius
- C.
Humerus
Correct Answer
B. RadiusExplanation
The correct answer is radius because it is the lateral bone of the forearm. The ulna is the medial bone of the forearm, and the humerus is the bone in the upper arm.Rate this question:
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- 20.
this bone is in the posterior thorax
- A.
Patella
- B.
Scapula
- C.
Ilium
Correct Answer
B. ScapulaExplanation
The correct answer is scapula because it is a bone located in the posterior thorax. The patella is a bone located in the knee joint, while the ilium is a bone located in the pelvic region. Therefore, the scapula is the only bone that matches the given description.Rate this question:
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- 21.
the superior region of the coaxal bone
- A.
Ischium
- B.
Ilium
- C.
Coccyx
Correct Answer
B. IliumExplanation
The ilium is the correct answer because it is the superior region of the coxal bone. The coxal bone is made up of three parts: the ilium, ischium, and pubis. The ilium is the largest and most superior part of the coxal bone, forming the upper portion of the hip bone. It is located on the sides of the pelvis and helps support the weight of the body when standing or sitting.Rate this question:
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- 22.
Coxal bone is another name for the os coxae, or hip bones.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because the coxal bone is indeed another name for the os coxae or hip bones. The os coxae is a large, paired bone located in the pelvic region and it consists of three fused bones: the ilium, ischium, and pubis. These bones form the socket of the hip joint and provide support and stability to the pelvis. Therefore, it is correct to say that the coxal bone is another name for the os coxae or hip bones.Rate this question:
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- 23.
Forms the anterior portion of the os coxae
- A.
Coccyx
- B.
Pubis
- C.
Ilium
Correct Answer
B. PubisExplanation
The pubis is one of the three bones that make up the os coxae, or hip bone. It forms the anterior portion of the os coxae, along with the ilium and ischium. The pubis is located in the front of the pelvis, and it connects with the other two bones to form the socket for the hip joint. Therefore, the pubis is the correct answer as it forms the anterior portion of the os coxae.Rate this question:
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- 24.
The shin bone
- A.
Fibula
- B.
Tibia
- C.
Femur
Correct Answer
B. TibiaExplanation
The tibia is the correct answer because it is commonly referred to as the shin bone. It is the larger and stronger of the two bones in the lower leg, while the fibula is the smaller bone. The femur, on the other hand, is the bone in the upper leg. Therefore, the tibia is the most appropriate answer in this context.Rate this question:
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- 25.
The membrane between the fibula and tibia
- A.
Mastoid process
- B.
Interosseous membrane
- C.
Foramen Magnum
Correct Answer
B. Interosseous membraneExplanation
The interosseous membrane is a fibrous tissue that connects the fibula and tibia bones in the lower leg. It helps to stabilize the bones and transfer forces between them during movement. This membrane allows for some flexibility and movement between the two bones while still providing support.Rate this question:
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- 26.
The large hole through which the brain connects with the spinal cord
- A.
Mastoid process
- B.
Interosseous membrane
- C.
Foramen Magnum
Correct Answer
C. Foramen MagnumExplanation
The foramen magnum is the large hole located at the base of the skull through which the brain connects with the spinal cord. It allows the passage of the spinal cord, blood vessels, and other structures between the brain and the rest of the body. The mastoid process is a bony projection located behind the ear, and the interosseous membrane is a fibrous tissue that connects two bones. Neither of these structures are directly related to the connection between the brain and spinal cord. Therefore, the correct answer is Foramen Magnum.Rate this question:
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- 27.
Anchoring site for neck muscles
- A.
Mastoid process
- B.
Interosseous membrane
- C.
Foramen Magnum
Correct Answer
A. Mastoid processExplanation
The mastoid process is a bony prominence located behind the ear that serves as an anchoring site for neck muscles. These muscles help to stabilize and move the head and neck. The mastoid process provides a point of attachment for muscles such as the sternocleidomastoid, which plays a key role in head rotation and flexion. By anchoring these muscles, the mastoid process helps to support the weight of the head and allows for proper movement and function of the neck muscles.Rate this question:
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- 28.
The medial bone of the leg
- A.
Tibia
- B.
Fibula
- C.
Femur
Correct Answer
A. TibiaExplanation
The tibia is the correct answer because it is the main bone located in the medial (inner) part of the leg. It is larger and stronger than the fibula, which is the other bone in the lower leg. The femur, on the other hand, is the bone located in the thigh and is not part of the leg. Therefore, the tibia is the most appropriate answer for the given question.Rate this question:
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- 29.
The lateral bone of the leg
- A.
Tibia
- B.
Fibula
- C.
Femur
Correct Answer
B. FibulaExplanation
The fibula is the lateral bone of the leg, while the tibia is the larger and more medial bone. The femur, on the other hand, is the bone in the upper leg. Therefore, the correct answer is fibula.Rate this question:
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- 30.
The bone of the thigh
- A.
Tibia
- B.
Fibula
- C.
Femur
Correct Answer
C. FemurExplanation
The femur is the correct answer because it is the bone of the thigh. The tibia and fibula are bones of the lower leg, not the thigh. The femur is the longest and strongest bone in the human body and is located in the upper leg, connecting the hip to the knee.Rate this question:
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- 31.
How many bones in the skull?
- A.
14
- B.
22
- C.
Too many to count
Correct Answer
B. 22Explanation
The skull is composed of 22 bones. It consists of 8 cranial bones, which form the protective structure around the brain, and 14 facial bones, which make up the structure of the face. These bones work together to provide support and protection for the brain and sensory organs, as well as help with chewing, speaking, and facial expressions.Rate this question:
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- 32.
Fibrous membranes that help brain growth in the fetus and infant
- A.
Follicles
- B.
Fontanelles
- C.
Foramen
Correct Answer
B. FontanellesExplanation
Fontanelles are fibrous membranes that help brain growth in the fetus and infant. These soft spots on a baby's skull allow for the skull to expand as the brain grows rapidly during early development. Fontanelles are important for the proper development of the brain and skull, as they allow flexibility and accommodating growth.Rate this question:
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- 33.
The most anterior part of the cranium
- A.
Frontal Bone
- B.
Parietal Bone
- C.
Occipital Bone
- D.
Mandible Bone
- E.
Sphenoid Bone
- F.
Temporal Bone
- G.
Ethmoid Bone
Correct Answer
A. Frontal BoneExplanation
The frontal bone is the correct answer because it is located at the most anterior part of the cranium. It forms the forehead and the upper part of the eye sockets.Rate this question:
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- 34.
Forms the bony area betewen the nasal cavity and the orbits
- A.
Frontal Bone
- B.
Parietal Bone
- C.
Occipital Bone
- D.
Mandible Bone
- E.
Sphenoid Bone
- F.
Temporal Bone
- G.
Ethmoid Bone
Correct Answer
G. Ethmoid BoneExplanation
The ethmoid bone forms the bony area between the nasal cavity and the orbits. It is a delicate bone located between the eyes, contributing to the walls of the nasal cavity, the orbits, and the roof of the nasal cavity. It consists of a horizontal plate that forms the roof of the nasal cavity, as well as various projections and structures that help support and protect the nasal passages.Rate this question:
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- 35.
Forms the bulk of the cranial ceiling
- A.
Frontal Bone
- B.
Parietal Bone
- C.
Occipital Bone
- D.
Mandible Bone
- E.
Sphenoid Bone
- F.
Temporal Bone
- G.
Ethmoid Bone
Correct Answer
B. Parietal BoneExplanation
The parietal bone forms the bulk of the cranial ceiling, meaning it makes up a significant portion of the top part of the skull. It is located on each side of the skull, forming the sides and roof of the cranium. The parietal bone is paired, meaning there is one on each side of the skull, and they meet in the middle at the sagittal suture. This bone plays a crucial role in protecting the brain and providing support to the skull structure.Rate this question:
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- 36.
Forms the base of the skull
- A.
Frontal Bone
- B.
Parietal Bone
- C.
Occipital Bone
- D.
Mandible Bone
- E.
Sphenoid Bone
- F.
Temporal Bone
- G.
Ethmoid Bone
Correct Answer
C. Occipital BoneExplanation
The occipital bone forms the base of the skull. It is located at the back of the skull and is responsible for protecting the brainstem and the cerebellum. It also provides attachment points for various muscles, ligaments, and tendons. Additionally, the occipital bone contains the foramen magnum, which is a large opening that allows the spinal cord to pass through and connect to the brain.Rate this question:
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- 37.
The only facial bone that does not articulate with the maxilla
- A.
Frontal Bone
- B.
Parietal Bone
- C.
Occipital Bone
- D.
Mandible Bone
- E.
Sphenoid Bone
- F.
Temporal Bone
- G.
Ethmoid Bone
Correct Answer
D. Mandible BoneExplanation
The mandible bone is the only facial bone that does not articulate with the maxilla. It is the lower jawbone and is the largest and strongest facial bone. It articulates with the temporal bones on either side of the skull, forming the temporomandibular joint, which allows for movement of the jaw. The mandible bone plays a crucial role in activities such as chewing, speaking, and facial expression.Rate this question:
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- 38.
This encloses the pituitary gland
- A.
Frontal Bone
- B.
Parietal Bone
- C.
Occipital Bone
- D.
Mandible Bone
- E.
Sphenoid Bone
- F.
Temporal Bone
- G.
Ethmoid Bone
Correct Answer
E. Sphenoid BoneExplanation
The sphenoid bone is a complex bone located at the base of the skull. It forms part of the cranial floor and houses the pituitary gland within a depression called the sella turcica. The pituitary gland is an important endocrine gland that plays a crucial role in hormone regulation. Therefore, the sphenoid bone encloses the pituitary gland.Rate this question:
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- 39.
This encloses the external ear
- A.
Frontal Bone
- B.
Parietal Bone
- C.
Occipital Bone
- D.
Mandible Bone
- E.
Sphenoid Bone
- F.
Temporal Bone
- G.
Ethmoid Bone
Correct Answer
F. Temporal BoneExplanation
The temporal bone is a bone that encloses the external ear. It is located on the side of the skull and forms part of the cranial floor and sides of the skull. The temporal bone houses important structures such as the middle and inner ear, including the ear canal and eardrum. It also provides protection to the brain and supports various muscles involved in chewing and jaw movement.Rate this question:
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- 40.
This encloses the external ear
- A.
Frontal Bone
- B.
Parietal Bone
- C.
Occipital Bone
- D.
Mandible Bone
- E.
Sphenoid Bone
- F.
Temporal Bone
- G.
Ethmoid Bone
Correct Answer
F. Temporal BoneExplanation
The temporal bone encloses the external ear. It is a paired bone located on the sides and base of the skull. It forms part of the cranial floor and protects the structures of the middle and inner ear. The temporal bone also houses the temporomandibular joint, which allows for jaw movement.Rate this question:
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- 41.
The mastoid process involves this bone
- A.
Frontal Bone
- B.
Parietal Bone
- C.
Occipital Bone
- D.
Mandible Bone
- E.
Sphenoid Bone
- F.
Temporal Bone
- G.
Ethmoid Bone
Correct Answer
F. Temporal BoneExplanation
The mastoid process is a bony prominence located behind the ear. It is a projection of the temporal bone, which is a bone that forms part of the skull. The temporal bone is responsible for protecting the structures of the inner ear and also plays a role in the formation of the jaw joint. It is connected to other bones of the skull, such as the parietal bone and occipital bone. Therefore, the correct answer is the Temporal Bone.Rate this question:
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Mar 22, 2023Quiz Edited by
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Feb 06, 2011Quiz Created by
AdamGraupe
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