What does the manubrium of the sternum articulate with?
The sternal end of the clavicle articulates with the manubrium of the sternum to form the sternoclavicular joint. To what does the manubrium of the sternum articulate? The manubrium of the sternum articulates with the sternal end of the clavicle to form the sternoclavicular joint.
What is the shape of the manubrium?
The manubrium (Latin: handle) is the broad upper part of the sternum. It has a quadrangular shape, narrowing from the top, which gives it four borders. The suprasternal notch (jugular notch) is located in the middle at the upper broadest part of the manubrium.
How many pairs of ribs articulate directly to the manubrium?
Secondly, how many pairs of ribs articulate directly to the Manubrium? Ribs. Each rib is a curved, flattened bone that contributes to the wall of the thorax. The ribs articulate posteriorly with the T1–T12 thoracic vertebrae, and most attach anteriorly via their costal cartilages to the sternum. There are 12 pairs of ribs.
What is the function of the manubrium of the malleus?
The manubrium of the malleus is connected to the central region of the tympanic membrane and is responsible for the tympanic membrane’s conical shape, as it pulls the tympanic membrane inward towards the middle ear cavity. Craig Cunningham, ... Sue Black, in Developmental Juvenile Osteology (Second Edition), 2016
What articulates with the manubrium of the sternum?
The manubrium is the most superior portion of the sternum that articulates with the clavicle—forming the sternoclavicular (SC) joint. The body or middle portion of the sternum serves as the anterior attachment for ribs 2 through 7. The inferior tip of the sternum is called the xiphoid process, meaning “sword shaped.”
What is attached to the manubrium?
[1] The sternocleidomastoid, sternohyoid and sternothyroid attach to the manubrium sterni. The transversus thoracis muscle attaches to the body of the sternum and xiphoid process. Pectoralis major is another major muscle attached to the body of the sternum.
What does the manubrium articulate with on its superior border?
The manubrium (or head) which articulates with the clavicles at the sternoclavicular joints. The superior surface of the manubrium (jugular notch) lies directly anterior to the 2nd thoracic vertebra.
What bone articulates with the top of the manubrium?
SternumFunctionProtection of the lungs, heart and thoracic blood vessels from mechanical damagePartsManubrium - most superior region that articulates with clavicles and the first pair of ribs Body - articulates with 3rd - 7th ribs Xiphoid process - most inferior part2 more rows
What structures are behind the manubrium?
The sternohyoid, sternothyroid, and sternocleidomastoid muscles originate at the manubrium. The sternohyoid muscle runs from the dorsal manubrium to the ventrocaudal hyoid bone, with attachments to the sternoclavicular joint capsule, and the sternothyroid muscle attaches along the dorsal midline of the manubrium.
Which ribs attach to the manubrium?
The first ribs also attach to the manubrium. The elongated, central portion of the sternum is the body. The manubrium and body join together at the sternal angle, so called because the junction between these two components is not flat, but forms a slight bend.
Where is the manubrium of the sternum?
The manubrium (Latin for "handle") is the broad upper part of the sternum. It has a quadrangular shape, narrowing from the top, which gives it four borders. The suprasternal notch (jugular notch) is located in the middle at the upper broadest part of the manubrium. This notch can be felt between the two clavicles.
How many pairs of ribs articulate directly to the manubrium?
how many pairs of ribs articulate directly with the sternum? There are 7 pairs of true ribs in the human body. True ribs articulate directly with the sternum.
Which structure articulates with the superior surface of the atlas?
Articulations. Superiorly the atlas articulates with the occiput to form the Atlanto-occipital joint which allows the head to nod up and down on the vertebral column. Inferiorly the atlas articulates with the dens which acts as a pivot that allows the atlas and attached head to rotate on the axis.
Which bones articulates with the humerus?
The humerus articulates with the scapula proximally at the glenohumeral joint so it participates in the movements of the shoulder. Also, the humerus has distal articulations with the radius and ulna at the elbow joint.
What is posterior to the manubrium?
sternocleidomastoid: tendon attaches to the anterior surface of the manubrium. sternohyoid: attaches to the superior part of the posterior surface of the manubrium. sternothyroid: attaches to the superior part of the posterior surface of the manubrium.
Which 2 bones does the clavicle articulate with?
Looking at the clavicle from above we can see that it's slightly S-shaped, with a forward curve to its medial half. At its medial end this large joint surface articulates with the sternum. At the lateral end this smaller surface articulates with the scapula.
Manubrium
The manubrium is the most superior portion of the sternum. It is trapezoid in shape.
Body
The body is flat and elongated – the largest part of the sternum. It articulates with the manubrium superiorly (manubriosternal joint) and the xiphoid process inferiorly (xiphisternal joint).
Xiphoid Process
The xiphoid process is the most inferior and smallest part of the sternum. It is variable in shape and size, with its tip located at the level of the T10 vertebrae. The xiphoid process is largely cartilaginous in structure, and completely ossifies late in life – around the age of 40.
The Thorax
The manubrium is the thickest and strongest portion of the sternum and is therefore the area that is most likely to survive inhumation. It is broad and thick along its superior margin and narrows towards its inferior articulation with the mesosternum (Jit et al ., 1980).
The Thorax
Craig Cunningham, ... Sue Black, in Developmental Juvenile Osteology (Second Edition), 2016
Manubriosternal Syndrome
Steven D. Waldman MD, JD, in Atlas of Common Pain Syndromes (Fourth Edition), 2019
THORAX: STERNUM & RIBS
The sternum, or breastbone, functions at its upper end to connect the shoulder girdle (clavicle and scapula) to the thorax. In addition, it anchors the anterior ends of paired ribs 1–7 via cartilage. The bone is composed of three main parts in adulthood but develops from six segments.
The Musculature of the Rat
Robert Lewis Maynard, Noel Downes, in Anatomy and Histology of the Laboratory Rat in Toxicology and Biomedical Research, 2019
Anterior Approaches to the Cervicothoracic Junction (Low Cervical-Supraclavicular, Transclavicular-Transmanubrial, Trans-sternal-Transthoracic)
Superior mediastinum is defined anteriorly by the manubrium (Fig. 7-1 ).
Volume 2
Richard G. Fessler, Daniel H. Kim, in Schmidek and Sweet Operative Neurosurgical Techniques (Sixth Edition), 2012
