1.
What vertebrae can be seen in the middle of the suboccipital triangle?
Correct Answer
A. C1
Explanation
The vertebrae that can be seen in the middle of the suboccipital triangle is C1, also known as the atlas. The suboccipital triangle is a region located at the base of the skull, formed by the superior oblique, inferior oblique, and rectus capitis posterior major muscles. C1 is the first cervical vertebrae and it articulates with the occipital bone of the skull, allowing for flexion and extension movements of the head.
2.
Rectus Capitis Posterior Major attaches inferior to the ______ of _____ vertebrae and superior to the _______ _______. (Answer: answer, answer, answer answer) use abbreviations.
Correct Answer
SP, C2, nuchal line
Explanation
The Rectus Capitis Posterior Major muscle attaches inferior to the spinous process (SP) of the second cervical vertebra (C2) and superior to the nuchal line.
3.
Rectus capitis minor attaches to the posterior tuberble of C1 and attaches to the nuchal line.
Correct Answer
A. True
Explanation
Rectus capitis minor is a small muscle located at the back of the neck. It originates from the posterior tubercle of the atlas (C1 vertebrae) and inserts into the nuchal line, a ridge on the occipital bone. This muscle is responsible for flexing and rotating the head. Therefore, the statement that Rectus capitis minor attaches to the posterior tubercle of C1 and attaches to the nuchal line is true.
4.
Which muscle has an attachment on SP C2? (select all that apply)
Correct Answer(s)
A. Rectus capitis posertior major
D. Obliquus capitis inferior
Explanation
The correct answer is Rectus capitis posertior major and obliquus capitis inferior. These muscles both have an attachment on SP C2.
5.
What muscle does not attach to the nuchal line.
Correct Answer
C. Obliquus capitis inferior
Explanation
The obliquus capitis inferior is the correct answer because it does not attach to the nuchal line. The nuchal line is a ridge on the occipital bone of the skull, and the obliquus capitis inferior muscle attaches to the spinous process of the axis vertebra, not the nuchal line.
6.
The artery found in the suboccipital triangle is call the ________ artery.
Correct Answer
vertebral
Explanation
The artery found in the suboccipital triangle is called the vertebral artery.
7.
The suboccipital triangle ______ rotates the head on C1/C2.
Correct Answer
ipsilaterally
Explanation
The suboccipital triangle is a group of muscles located at the base of the skull. These muscles work together to help rotate the head. When the head is rotated ipsilaterally, it means that it is being turned towards the same side as the muscles in the suboccipital triangle. Therefore, the correct answer is "ipsilaterally".
8.
Cervical and Lumbar vertebrae have a ______ curve while thoracic and sacral vertebrae have a _______ curve. (anwser: answer, answer)
Correct Answer
lordotic, kyphotic
Explanation
Cervical and Lumbar vertebrae have a lordotic curve while thoracic and sacral vertebrae have a kyphotic curve. The lordotic curve in the cervical and lumbar regions helps to maintain balance, absorb shock, and provide flexibility in the spine. The kyphotic curve in the thoracic and sacral regions helps to protect the internal organs and provide stability to the spine.
9.
Cervical curve is also known as a primary curve.
Correct Answer
B. False
Explanation
Secondary, you develop when you start picking up your head
10.
Ventral rami in the thoracic region turn into plexuses.
Correct Answer
B. False
Explanation
Ventral rami in the thoracic region don't have plexuses, they just turn into intercostal nerves.
11.
Spinal cord is the size of the vertebral foramen.
Correct Answer
B. False
Explanation
1/3 the size. rest is filled with fluid and other stuff.
12.
The _______s and the _______s make up the vertebral arch. (Answer: answer, answer ....alphabetical order)
Correct Answer
lamina, pedicle
Explanation
The lamina and the pedicle are the components that form the vertebral arch. The lamina is a thin, flat plate of bone that extends from the pedicle and forms the posterior portion of the arch. The pedicle, on the other hand, is a short, thick piece of bone that connects the lamina to the body of the vertebra. Together, the lamina and pedicle provide support and protection to the spinal cord, forming the structure of the vertebral arch.
13.
Spina Bifida is when....
Correct Answer
B. Lamina doesn't close to make spinous process
Explanation
Spina Bifida is a congenital condition where the lamina, a part of the vertebra, fails to close properly, resulting in the incomplete formation of the spinous process. This can lead to a range of complications, including the protrusion of the spinal cord and its covering through the gap in the vertebrae. The other options mentioned in the question are not accurate descriptions of Spina Bifida.
14.
The pars interarticularis is what connects the articular processes. This is same thing as the lamina.
Correct Answer
B. False
Explanation
it is NOT the lamina, it is a separate piece of bone.
15.
You have one vertebral arch made up of 2 pedicles and 2 laminas.
Correct Answer
A. True
Explanation
The vertebral arch is indeed made up of two pedicles and two laminas. The pedicles are short, thick processes that connect the vertebral body to the lamina, which are flat plates of bone that form the posterior portion of the arch. Together, the pedicles and laminas enclose the vertebral foramen, which houses the spinal cord. Therefore, the statement "You have one vertebral arch made up of 2 pedicles and 2 laminas" is true.
16.
The zygapophysial joint is also known as a facet joint.
Correct Answer
A. True
Explanation
The statement is true because the zygapophysial joint is indeed another term for a facet joint. Facet joints are located in the spine and connect the vertebrae together, allowing for movement and flexibility. They are synovial joints that have cartilage-covered surfaces and a synovial membrane that produces synovial fluid to lubricate the joint. The zygapophysial joint is the specific name for these facet joints in the spine.
17.
C1 spinal nerve is called C1 and C2 spinal nerve is called C2.
Correct Answer
B. False
Explanation
C2 is called greater occipital nerve but C1 is called the suboccipital nerve.