Quiz 3- Bone Markings, Division Of Skeleton And Axial Skel.

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Questions and Answers
  • 1. 

    What are the four projections on bone?

    Explanation
    The four projections on bone are the head, process, crest, and spine. The head refers to the rounded end of a bone that fits into a joint. A process is a bony prominence or projection, such as a tubercle or tuberosity. A crest is a sharp ridge or border, often found on the top of a bone. A spine is a sharp, slender projection of a bone, often serving as an attachment point for muscles or ligaments. These four projections play important roles in the structure and function of bones.

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  • 2. 

    This projection is rounded, knoblike, and separated from the rest of the bone by a slender region, the neck.

    Explanation
    The given description of the projection being rounded, knoblike, and separated from the rest of the bone by a slender region, the neck, perfectly matches the characteristics of a head. In anatomy, the head refers to the uppermost part of the body that contains the brain, sensory organs, and other important structures. Therefore, based on the provided information, the correct answer is head.

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  • 3. 

    This is a large projection of a bone

  • 4. 

    This projection is a distinct border or ridge

    Explanation
    The given answer "crest" is the correct explanation for the statement "This projection is a distinct border or ridge." A crest refers to a prominent raised area or ridge, usually found on a surface or the top of an object. It is a distinct border or projection that stands out from its surroundings.

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  • 5. 

    This is a sharp projection from the surface of a bone

    Explanation
    The given statement describes a sharp projection from the surface of a bone. The term "spine" refers to a bony projection or ridge that can be found on various bones in the body. It is often characterized by its pointed or sharp shape, making it an appropriate answer to the question.

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  • 6. 

    What are the four types of depressions or holes?

    Explanation
    The correct answer is foramen, sinus, fossa, meatus. These are the four types of depressions or holes found in the human body. A foramen is a small opening or hole in a bone that allows nerves and blood vessels to pass through. A sinus is a cavity or hollow space in a bone that is filled with air and lined with mucous membranes. A fossa is a shallow depression or groove in a bone. A meatus is a tubelike passageway or opening, such as the ear canal or urethral opening.

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  • 7. 

    This is a hole that allows a vessel or a nerve to pass through or between bones

    Explanation
    A foramen is a hole in the body that allows a vessel or a nerve to pass through or between bones. It is a natural opening or passage in the skeletal structure that provides a pathway for important structures to travel through. The foramen plays a crucial role in the body's functioning by allowing blood vessels and nerves to reach different parts of the body, ensuring proper communication and transportation.

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  • 8. 

    This is an air space found in some skull bones

    Explanation
    The correct answer is sinus. Sinuses are air spaces found in some skull bones. They are lined with mucous membranes and are connected to the nasal cavity. Sinuses help to lighten the skull, produce mucus to moisturize the nasal passages, and contribute to voice resonance.

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  • 9. 

    This is a depression on a bone surface

    Explanation
    The term "fossa" refers to a depression on a bone surface. It is a anatomical term used to describe a concave or hollow area on a bone. This depression can vary in size and shape and is often associated with the attachment of muscles, tendons, or ligaments. The term "fossa" is commonly used in anatomical descriptions to indicate a specific location or feature on a bone.

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  • 10. 

    A short channel or passageway is a...

    Explanation
    A short channel or passageway is referred to as a meatus.

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  • 11. 

    What are the two divisions of the human skeleton?

    Explanation
    The human skeleton is divided into two main divisions: the axial skeleton and the appendicular skeleton. The axial skeleton consists of the bones that form the central axis of the body, including the skull, vertebral column, and ribcage. These bones provide support and protection for vital organs. On the other hand, the appendicular skeleton includes the bones of the limbs and the girdles that attach them to the axial skeleton. This division allows for movement and locomotion.

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  • 12. 

    This division of the skeleton is made up of 80 bones that make up the center or axis of the body. This includes the bones of the skull, spine, chest and the hyoid bone of the neck.

    Explanation
    The axial skeleton is the division of the skeleton that consists of 80 bones, including the bones of the skull, spine, chest, and the hyoid bone of the neck. It forms the central or axis of the body, providing support and protection for vital organs such as the brain, spinal cord, and heart. The axial skeleton is responsible for maintaining the body's posture and allowing for movement, making it an essential part of the skeletal system.

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  • 13. 

    This division of the skeleton is made up of 126 bones that form the framework for the extremities and for the shoulders and the hips.

    Explanation
    The appendicular skeleton refers to the division of the skeleton that includes the bones of the extremities (arms and legs), as well as the bones of the shoulders and hips. It is made up of 126 bones that provide support and structure to these parts of the body. This division of the skeleton is separate from the axial skeleton, which includes the bones of the skull, spine, and ribcage.

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  • 14. 

    What are the two parts the skull is divided into?

    Explanation
    The skull is divided into two main parts: the cranial and facial bones. The cranial bones form the structure of the skull and protect the brain, while the facial bones make up the front of the skull and support the face. This division allows for the protection of the brain and the support and mobility of the facial features.

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  • 15. 

    This part of the skull contains 8 bones

    Explanation
    The term "cranial" refers to the part of the skull that contains 8 bones. The skull is made up of several bones, and the cranial bones specifically refer to those that form the top and back of the skull, as well as the forehead. These bones include the frontal bone, parietal bones, temporal bones, occipital bone, sphenoid bone, and ethmoid bone. Therefore, the correct answer is "cranial" because it accurately describes the part of the skull that contains 8 bones.

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  • 16. 

    This part of the skull contains 14 bones

    Explanation
    The correct answer is "facial" because the facial bones are a group of 14 bones that make up the structure of the face. These bones include the maxilla, mandible, nasal bones, zygomatic bones, and others. They form the framework for the facial features and provide support and protection for the sensory organs such as the eyes, nose, and mouth.

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  • 17. 

    This bone of the cranium is the forehead bone

    Explanation
    The frontal bone is the correct answer because it is the bone of the cranium that makes up the forehead. It forms the anterior part of the skull and extends from the forehead to the top of the eye sockets. The frontal bone also houses the frontal sinuses and provides protection for the brain.

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  • 18. 

    These bones of the cranium consists of two bones that make up the top and sides of the cranium

    Explanation
    The correct answer is "parietal bones." The parietal bones are two bones that make up the top and sides of the cranium. They are located towards the back of the skull and form the majority of the cranial vault. These bones are flat and curved, and they join together at the sagittal suture in the midline of the skull. The parietal bones play a crucial role in protecting the brain and providing structural support to the head.

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  • 19. 

    These bones of the cranium consist of two bones that form part of the sides and some of the base of the skull.

    Explanation
    The bones of the cranium referred to in the question are the temporal bones. These bones are located on the sides and part of the base of the skull. They contribute to the formation of the temples and house important structures such as the middle and inner ear, as well as the temporomandibular joint. The temporal bones are crucial for protecting these structures and providing support to the skull.

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  • 20. 

    Each one of these bones contains mastoid sinuses as well as the ear canal, the eardrum, and the entire middle and inner ears

    Explanation
    The temporal bones are located on each side of the skull and house various structures related to the ear. They contain mastoid sinuses, which are air-filled spaces connected to the middle ear. The ear canal, eardrum, and the middle and inner ears are also found within the temporal bones. These bones play a crucial role in housing and protecting the delicate structures involved in hearing and balance.

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  • 21. 

    This facial bone consists of two bones that make up the cheek bones

    Explanation
    The zygomatic bones, also known as the cheekbones, are a pair of facial bones that contribute to the structure of the face. They are located on either side of the face, below the eyes and above the maxilla (upper jawbone). The zygomatic bones are responsible for forming the prominence of the cheeks and the outer edge of the eye sockets. They also provide attachment points for various muscles involved in facial expression, chewing, and the movement of the jaw. Overall, the zygomatic bones play a crucial role in shaping the face and providing support for facial structures.

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  • 22. 

    These two facial bones form the bridge of the nose

    Explanation
    The nasal bones are responsible for forming the bridge of the nose. They are two small, oblong bones that are located in the upper part of the face, between the eyes. These bones are important for providing structure and support to the nose, as well as contributing to its overall shape and appearance.

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  • 23. 

    These two facial bones are small and help form the medial wall of the eye socket and side wall of the nasal cavity

    Explanation
    The lacrimal bones are small bones that contribute to the medial wall of the eye socket and the side wall of the nasal cavity. They are responsible for housing the lacrimal sac, which collects tears from the eye and drains them into the nasal cavity. These bones play a crucial role in the protection and drainage of tears, as well as in the structure and support of the eye socket and nasal cavity.

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  • 24. 

    This facial bone forms the lower and back part of the nasal septum

    Explanation
    The vomer is a facial bone that is located in the lower and back part of the nasal septum. It plays a crucial role in dividing the nasal cavity into two separate chambers. The vomer is responsible for providing structural support and stability to the nasal septum, ensuring proper airflow and function of the respiratory system.

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  • 25. 

    These two facial bones form the back part of the hard palate

    Explanation
    The palatine bones are two facial bones that are located at the back part of the hard palate. They contribute to the structure and formation of the hard palate, which is the bony structure that separates the oral and nasal cavities. The palatine bones play a crucial role in supporting the roof of the mouth and helping with functions such as chewing, swallowing, and speaking.

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  • 26. 

    This cranial bone is light and fragile, located between the eyes

    Explanation
    The ethmoid bone is a light and fragile cranial bone that is located between the eyes. It forms part of the nasal cavity and helps to separate the nasal cavity from the brain. The ethmoid bone also contains tiny air-filled spaces called ethmoid sinuses, which help to lighten the skull and provide resonance to the voice. Additionally, it plays a role in the sense of smell, as it houses the olfactory epithelium, which contains the receptors for smell. Overall, the ethmoid bone is an important structure in the skull, contributing to both structural support and sensory functions.

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  • 27. 

    This cranial bone forms the central part of the floor of the cranium

    Explanation
    The sphenoid bone is a cranial bone that is located in the central part of the floor of the cranium. It is shaped like a butterfly and forms the base of the skull. The sphenoid bone is an important bone as it helps to support the weight of the brain and provides attachment points for various muscles and ligaments. It also houses important structures such as the pituitary gland and the optic nerves.

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  • 28. 

    This bone forms the back and part of the base of the skull

    Explanation
    The occipital bone is located at the back and part of the base of the skull. It is a flat, curved bone that protects the brain and provides attachments for various muscles and ligaments. The occipital bone also contains the foramen magnum, a large opening through which the spinal cord passes. Its position and shape make it the correct answer for the bone that forms the back and part of the base of the skull.

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  • 29. 

    The spinal cord enters the cranium through a large hole in the occipital bone called the>>>

    Explanation
    The spinal cord enters the cranium through a large hole in the occipital bone called the foramen magnum. This opening allows the spinal cord to connect with the brain and facilitates the passage of nerves between the two structures. The foramen magnum is located at the base of the skull and is essential for the proper functioning of the central nervous system.

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  • 30. 

    This facial bone is the lower jaw bone, and only movable bone of the skull

    Explanation
    The mandible is the correct answer because it is the lower jaw bone and the only movable bone of the skull. It forms the lower part of the skull and contains the lower teeth. The mandible is connected to the skull by a joint called the temporomandibular joint, allowing it to move when we talk, chew, or yawn.

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  • 31. 

    These two facial bones fused in midline to form the upper jaw bone. It also forms the front of the hard palate (roof of mouth)

    Explanation
    The maxilla is a facial bone that is formed by the fusion of two bones in the midline. It is responsible for forming the upper jaw bone and also contributes to the front portion of the hard palate, which is the roof of the mouth.

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  • 32. 

    The three ear bones are the...

    Explanation
    The three ear bones, also known as the ossicles, are the malleus, incus, and stapes. These bones are located in the middle ear and are responsible for transmitting sound vibrations from the eardrum to the inner ear. The malleus is attached to the eardrum and transfers the vibrations to the incus, which in turn transfers them to the stapes. The stapes then transmits the vibrations to the fluid-filled cochlea, where they are converted into electrical signals that can be interpreted by the brain.

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  • 33. 

    The smallest bones of the body are the _____ bones

    Explanation
    The ear consists of three small bones called the ossicles, which are the smallest bones in the human body. These bones are named the malleus, incus, and stapes. They are located in the middle ear and play a crucial role in transmitting sound vibrations from the eardrum to the inner ear. Due to their small size and delicate structure, they are often referred to as the smallest bones of the body.

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  • 34. 

    The malleus, incus, and stapes together are called  _______

    Explanation
    The malleus, incus, and stapes are three small bones located in the middle ear. They are responsible for transmitting sound vibrations from the eardrum to the inner ear. Collectively, these three bones are known as ossicles.

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  • 35. 

    This small, U-shaped bone just below the skull is not attached to any other bones, but the tongue and other muscles are attached to it.

    Explanation
    The hyoid bone is a small, U-shaped bone located just below the skull. It is unique because it is not attached to any other bones in the body. However, it serves as a point of attachment for various muscles, including those of the tongue. The hyoid bone plays a crucial role in supporting the structure of the tongue and facilitating its movements during speech and swallowing.

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  • 36. 

    The bones of the trunk include the ________ ___________ and the bones of the __________

    Explanation
    The bones of the trunk refer to the vertebral column, which is composed of individual vertebrae that provide support and protection to the spinal cord. The thorax, on the other hand, consists of the ribs and sternum, which enclose and protect vital organs such as the heart and lungs. Therefore, the correct answer is vertebral column, thorax.

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  • 37. 

    The bony sheath for the spinal column is called the __________ __________

    Explanation
    The bony sheath that protects and supports the spinal column is known as the vertebral column. It is made up of a series of individual bones called vertebrae, which are stacked on top of each other to form a flexible and strong structure. The vertebral column plays a crucial role in providing stability to the body, protecting the spinal cord, and allowing movement and flexibility in the spine.

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  • 38. 

    Irregularly shaped bones found in the spinal column are called...

    Explanation
    Irregularly shaped bones found in the spinal column are called vertebrae. These bones are stacked on top of each other to form the spinal column or backbone. The vertebrae provide support and protection to the spinal cord, which is an essential part of the central nervous system. Each vertebra is uniquely shaped to allow for flexibility and movement while maintaining stability. The vertebrae also play a crucial role in maintaining posture and allowing for various movements of the body.

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  • 39. 

    The drum-shaped body of the vertebrae, that serves as the weight bearing part is called a...

    Explanation
    The drum-shaped body of the vertebrae, known as the centrum, is responsible for bearing the weight of the body. It provides support and stability to the spine, allowing for movement and protection of the spinal cord. The centrum is located at the front of the vertebra and is made up of strong, dense bone that can withstand the forces exerted on the spine during daily activities.

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  • 40. 

    Disks of cartilage between the vertebral bodies act as _________ __________ and provide __________

    Explanation
    The disks of cartilage between the vertebral bodies serve as shock absorbers, cushioning the impact and reducing the stress on the spine. They also provide flexibility, allowing the spine to bend and move in various directions.

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  • 41. 

    In the center of each vertebrae there is a large hole called a...

    Explanation
    The center of each vertebrae contains a large hole called a foramen. A foramen is an opening or passage in the bone that allows nerves, blood vessels, and other structures to pass through. In the case of the vertebrae, the foramen provides a space for the spinal cord and its associated nerves to travel through, connecting the brain to the rest of the body.

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  • 42. 

    The posterior projection of the vertebrae is called the ________ ____________

    Explanation
    The posterior projection of the vertebrae is called the spinous process. The spinous process is a bony structure that extends from the back of each vertebra and can be felt as a series of bumps down the center of the back. It serves as an attachment point for muscles and ligaments, providing stability and support to the spine. The spinous process also helps to protect the spinal cord and nerves that run through the vertebral column.

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  • 43. 

    When viewed from the side, the vertebral column can be seen to have a series of _________ _________ through which spinal nerves emerge as they leave the spinal cord.

    Explanation
    When viewed from the side, the vertebral column can be seen to have a series of openings called intervertebral foramina. These foramina are located between adjacent vertebrae and serve as passageways for spinal nerves as they exit the spinal cord. The spinal nerves emerge through these openings and branch out to various parts of the body, allowing for communication between the central nervous system and the rest of the body.

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  • 44. 

    The bones of the vertebral column are ___________ and ____________ from top to bottom on the basis of location

    Explanation
    The bones of the vertebral column are categorized and organized from top to bottom based on their location. They are named according to their specific location and function within the column, such as cervical, thoracic, lumbar, sacral, and coccygeal vertebrae. Additionally, each bone is numbered to further differentiate and identify its position within the vertebral column.

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  • 45. 

    These vertebrae go from C1-C7 and are located in the neck

    Explanation
    The correct answer is "cervical." This refers to the vertebrae in the neck region, specifically from C1 to C7. The term "cervical" is commonly used in anatomy to describe this particular area of the spine.

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  • 46. 

    Another name for C1, which supports the head, is the...

    Explanation
    The correct answer is "atlas". The atlas is the first cervical vertebra in the spine that supports the head. It is responsible for the movement of the skull and allows for nodding and rotating movements.

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  • 47. 

    Another name for C2, which serves as a pivot when the head is turned, is the...

    Explanation
    The correct answer is "axis". In anatomy, the C2 vertebra, also known as the axis, serves as a pivot point for the head when it is turned. The axis is an important bone in the neck region that allows for rotational movement of the head, enabling us to turn our head from side to side.

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  • 48. 

    These vertebrae go from T1-T12 and are located in the chest.

    Explanation
    The given correct answer, "thoracic," is an appropriate explanation for the statement provided. The statement mentions vertebrae that go from T1-T12 and are located in the chest. These vertebrae are known as the thoracic vertebrae. The term "thoracic" accurately describes the location and range of these vertebrae, making it the correct answer.

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  • 49. 

    The posterior ends of the ribs are attached to the __________ vertebrae

    Explanation
    The posterior ends of the ribs are attached to the thoracic vertebrae. The thoracic vertebrae are the bones that make up the middle section of the spine and are located in the chest area. These vertebrae have special features called costal facets, which are small joints where the ribs connect. This allows the ribs to articulate with the thoracic vertebrae and form the rib cage, which protects the organs in the chest cavity.

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  • 50. 

    These vertebrae go from L1-L5 and are located in the small of the back. They are larger and heavier than the other vertebrae to support more weight

    Explanation
    The given answer, "lumbar," is correct. The lumbar vertebrae are a set of five vertebrae located in the lower back, specifically from L1 to L5. These vertebrae are larger and heavier compared to the other vertebrae in the spine. The purpose of this increased size and weight is to provide support for more weight-bearing, as the lower back carries a significant amount of the body's weight.

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  • Current Version
  • Mar 21, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 07, 2010
    Quiz Created by
    Mnathan21
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