Identifying Bones of the Trunk and Core - Anatomy
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What bone is know as the atlas?
What bone is know as the atlas?
The atlas is the first cervical vertebra, because it holds up the "globe" (the head.) The second cervical vertebra is know as the axis. The other vertebrae are named based on their location within the vertebral column.
The atlas is the first cervical vertebra, because it holds up the "globe" (the head.) The second cervical vertebra is know as the axis. The other vertebrae are named based on their location within the vertebral column.
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Which of the following types of vertebrae have facets for the articulation of the ribs called costal pits?
Which of the following types of vertebrae have facets for the articulation of the ribs called costal pits?
The thoracic vertebrae have facets called costal pits, with which the ribs articulate. No other types of vertebrae have this feature, nor do other types of vertebrae articulate with the ribs.
The thoracic vertebrae have facets called costal pits, with which the ribs articulate. No other types of vertebrae have this feature, nor do other types of vertebrae articulate with the ribs.
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What is the most superior portion of the sternum?
What is the most superior portion of the sternum?
The most superior portion of the sternum is the manubrium. The body of the sternum is just inferior to the manubrium. The xiphoid process is the most inferior portion of the sternum. The clavicle and the humerus are not part of the sternum.
The most superior portion of the sternum is the manubrium. The body of the sternum is just inferior to the manubrium. The xiphoid process is the most inferior portion of the sternum. The clavicle and the humerus are not part of the sternum.
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What is the middle portion of the sternum known as?
What is the middle portion of the sternum known as?
The middle portion of the sternum is the body of the sternum. The most superior portion of the sternum is the manubrium. The xiphoid process is the most inferior portion of the sternum. The clavicle and the humerus are not part of the sternum.
The middle portion of the sternum is the body of the sternum. The most superior portion of the sternum is the manubrium. The xiphoid process is the most inferior portion of the sternum. The clavicle and the humerus are not part of the sternum.
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What is the most inferior portion of the sternum?
What is the most inferior portion of the sternum?
The most inferior portion of the sternum is the xiphoid. The most superior portion of the sternum is the manubrium. The body of the sternum is just inferior to the manubrium. The clavicle and the humerus are not part of the sternum.
The most inferior portion of the sternum is the xiphoid. The most superior portion of the sternum is the manubrium. The body of the sternum is just inferior to the manubrium. The clavicle and the humerus are not part of the sternum.
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How many components are there to the sternum?
How many components are there to the sternum?
The sternum is composed of 3 separate portions: the manubrium, the body of the sternum, and the xiphoid process.
The sternum is composed of 3 separate portions: the manubrium, the body of the sternum, and the xiphoid process.
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What is the structure of the xiphoid process of a child?
What is the structure of the xiphoid process of a child?
The xiphoid is composed of cartilage in children. By adulthood, this cartilage has undergone ossification and is replaced by bone.
The xiphoid is composed of cartilage in children. By adulthood, this cartilage has undergone ossification and is replaced by bone.
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On which portion of the sternum do the clavicles insert?
On which portion of the sternum do the clavicles insert?
The clavicles insert in the most superior portion of the sternum known as the manubrium. The clavicles do not insert into the body of the sternum, the xiphoid process, the humerus, or the supraspinatus muscle.
The clavicles insert in the most superior portion of the sternum known as the manubrium. The clavicles do not insert into the body of the sternum, the xiphoid process, the humerus, or the supraspinatus muscle.
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What does the sternal angle separate?
What does the sternal angle separate?
The sternal angle separates the manubrium and the body of the sternum.
The sternal angle separates the manubrium and the body of the sternum.
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On which portion of the sternum does the first rib insert?
On which portion of the sternum does the first rib insert?
The first rib inserts on the manubrium of the sternum.
The first rib inserts on the manubrium of the sternum.
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Which rib inserts at the sternal angle?
Which rib inserts at the sternal angle?
The second rib inserts at the sternal angle. The first rib inserts on the manubrium and the third through six ribs insert on the body of the sternum.
The second rib inserts at the sternal angle. The first rib inserts on the manubrium and the third through six ribs insert on the body of the sternum.
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On which portion of the sternum do the third through sixth ribs insert?
On which portion of the sternum do the third through sixth ribs insert?
The third through sixth ribs insert at the body of the sternum. They do not insert at the manubrium, xiphoid process, clavicle, or the humerus.
The third through sixth ribs insert at the body of the sternum. They do not insert at the manubrium, xiphoid process, clavicle, or the humerus.
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Where is the jugular notch located in the sternum?
Where is the jugular notch located in the sternum?
The jugular notch, also known as the suprasternal notch is located at the superior portion of the manubrium. It is not located on the body of the sternum, the xiphoid process, the clavicle or the humerus.
The jugular notch, also known as the suprasternal notch is located at the superior portion of the manubrium. It is not located on the body of the sternum, the xiphoid process, the clavicle or the humerus.
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What joint separates the body of the sternum and the xiphoid process?
What joint separates the body of the sternum and the xiphoid process?
The xiphisternal joint separates the body of the sternum and the xiphoid process. The sternal angle separates the manubrium and the body of the sternum.
The xiphisternal joint separates the body of the sternum and the xiphoid process. The sternal angle separates the manubrium and the body of the sternum.
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Which of the following portions of the vertebral column represent primary curvature?
Which of the following portions of the vertebral column represent primary curvature?
Primary curvature is found in newborns, whereas secondary curvature develops over time. The thoracic and sacral portions of the vertebral column are convex, giving babies a more hunched posture.
Primary curvature is found in newborns, whereas secondary curvature develops over time. The thoracic and sacral portions of the vertebral column are convex, giving babies a more hunched posture.
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Which bone lacks a spinous process and receives the occipital condyles?
Which bone lacks a spinous process and receives the occipital condyles?
Atlas is another term for C1. Its superior articular facets receive the condyles of the occipital bone in the skull, which allows the neck to move backwards and forwards. The axis, or C2, has a superiorly projecting dens that distinguishes it from the atlas.
Atlas is another term for C1. Its superior articular facets receive the condyles of the occipital bone in the skull, which allows the neck to move backwards and forwards. The axis, or C2, has a superiorly projecting dens that distinguishes it from the atlas.
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Muscles around the __________ bone attaches to the mandible and larynx and contributes to swallowing.
Muscles around the __________ bone attaches to the mandible and larynx and contributes to swallowing.
The hyoid bone acts as an attachment point for many muscles in the neck. When swallowing, the larynx is elevated and the epiglottis is removed from the glottis, allowing matter into the esophagus.
The hyoid bone acts as an attachment point for many muscles in the neck. When swallowing, the larynx is elevated and the epiglottis is removed from the glottis, allowing matter into the esophagus.
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Which of the following types of vertebrae are recognizable in that there is a foramen in the transverse process?
Which of the following types of vertebrae are recognizable in that there is a foramen in the transverse process?
The cervical vertebrae have a foramen in the transverse process. These foramina transmit the vertebral arteries that help supply the brain. There are no foramina in the thoracic, lumbar, or coccygeal vertebrae; the sacral vertebrae have only sacral foramina.
The cervical vertebrae have a foramen in the transverse process. These foramina transmit the vertebral arteries that help supply the brain. There are no foramina in the thoracic, lumbar, or coccygeal vertebrae; the sacral vertebrae have only sacral foramina.
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What vertebra do the occipital condyles attach to in order to allow a nodding motion of the head?
What vertebra do the occipital condyles attach to in order to allow a nodding motion of the head?
The top two cervical vertebrae (C1 and C2) are responsible for allowing the head to move in a nodding motion, as well as side to side. The atlas is the first cervical vertebra (C1), and attaches to the occipital condyles in order to allow a nodding motion. The axis is the second cervical vertebra (C2) and allows for twisting motion from side to side.
The thoracic vertebrae are located in the trunk and allow for twisting motion, and some bending (though this is mostly allowed by the lumbar region). The sacrum is located inferior to the lumbar vertebrae and does not substantially contribute to movement.
The top two cervical vertebrae (C1 and C2) are responsible for allowing the head to move in a nodding motion, as well as side to side. The atlas is the first cervical vertebra (C1), and attaches to the occipital condyles in order to allow a nodding motion. The axis is the second cervical vertebra (C2) and allows for twisting motion from side to side.
The thoracic vertebrae are located in the trunk and allow for twisting motion, and some bending (though this is mostly allowed by the lumbar region). The sacrum is located inferior to the lumbar vertebrae and does not substantially contribute to movement.
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How many cervical vertebrae are there in the human body?
How many cervical vertebrae are there in the human body?
There are 33 vertebrae in the human body: 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 5 (fused) sacral vertebrae, 3-4 (fused) coccygeal vertebrae.
There are 33 vertebrae in the human body: 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 5 (fused) sacral vertebrae, 3-4 (fused) coccygeal vertebrae.
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