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What else can I help you with?
What is the anterior neck muscle which attaches to the ribs is?
The scalenus anterior and the scalenus medius all insert into the first rib (the scalenus posterior inserts into the second rib). They originate from cervical vertebrae two to cervical vertebrae seven (C2 - C7). Each of the scalene muscles has several points of origin, which look like fingers from your spine.
How is thoracoscopy done?
The surgeon makes two or three small incisions in the chest wall, often between the ribs. By making the incisions between the ribs, the surgeon minimizes damage to muscle and nerves and the ribs themselves. A tube is inserted in the trachea.
Why the last two pairs of ribs are not attached to the breast bone?
This is very good question. First rib is almost fixed. Next six ribs are attached to sternum. 8, 9 and 10th ribs are successively attached to the above ribs. 11th and 12 th ribs are hanging. First rib is almost fixed and over it the rest of the rib cage move to expand and contract. 11 th and 12 th ribs are attached to rib cage above on one hand by muscles. Below the same ribs are attached to hip bone by quadratus lumborum muscle. So this arrangement gives rib cage mobility on one hand and stability on the other hand. Two ribs give better mobility than one could have given and three ribs are not needed.
Is rectus abdominis a muscle of inspiration?
Actually, no. The rectus abdominis is a muscle that helps with the digestion of food, helps to hold organs in one place and gives you the "6 pack" feature when doing sit ups. There are two other muscles on the ribs that help the lungs with inspiration. They are the Intercostalis muscles. One is on the ribs themselves and one is on the gaps between the ribs. They move the ribs in and out with the lungs with every inspiration and expiration. Hope this helps!
What is theection of the sternum responsible for articulating with the calvicles and the first two ribs?
manubrium
How many pairs of ribs articulate directly to the manubrium?
According to Ross and Wilson Anatomy and Physiology, 2 pairs
What are the bones that form a cage around the chest?
The rib cage is formed by the sternum (breastbone) in the front, the thoracic vertebrae in the back, and the ribs that connect them. There are 12 pairs of ribs, with the first seven pairs known as true ribs, the next three pairs as false ribs, and the last two pairs as floating ribs.
What muscle attaches onto the cartilage of the ribs five through seven?
None! You are thinking of the external intercostal muscle which attaches to the *bone* of the ribs. However, at the cartilage of the rib the muscular portion is replaced by the external intercostal *membrane.* Muscles produce force on their attachments, causing piezoelectric force which eventually forms the bony landmarks you learn in anatomy lab.
Why is a floating rib easily broken?
There are twelve pair of ribs. The first seven ribs are true ribs because they have direct attachment to the sternum. An additional three pair of ribs have indirect attachment to the sternum meaning that they attach to other structures that attach to the sternum. The last two ribs are called floating ribs because they do not attach to the sternum at all. Because the floating ribs do not attach to the sternum they are prone to injury.
What are the bottom two pairs of ribs called?
ANSWER:Yes they are. See the related link for more information on this.
What are the bottom 2 pairs of ribs called?
The lowest two pairs are known as floating ribs.
What ribs join with the part of the spine?
The ribs that join with the spine are known as the true ribs and some of the false ribs. True ribs, which are the first seven pairs, directly connect to the thoracic vertebrae at the back and to the sternum at the front via costal cartilage. The next three pairs, known as false ribs, also attach to the thoracic vertebrae but do not connect directly to the sternum. The last two pairs, called floating ribs, are false ribs that attach only to the spine and not to the sternum or other ribs.
