Where is the Midclavicular line located?
An imaginary median line used to describe locations on the trunk. At its top, it passes through the midpoint of the clavicle, and on a male, it runs just medial to the nipple.
What does Midaxillary mean?
Medical Definition of midaxillary line : an imaginary line through the axilla parallel to the long axis of the body and midway between its ventral and dorsal surfaces.
What is the posterior axillary line?
Posterior axillary line: A vertical line passing through the posterior axillary fold. Scapular line: A vertical line passing through the inferior angle of the scapula. Paravertebral line: A vertical line corresponding to the tips of the transverse processes of the vertebrae. Posterior median line.
How is mid axillary line described?
mid·ax·il·lar·y line (mid-ak'si-lar-ē līn) [TA] An imaginary division halfway between the anterior axillary line and the posterior axillary line, passing through the apex of the axilla. Synonym(s): median axillary line [TA] .
What is the importance of Midaxillary line?
What is the function of the midaxillary line? The midaxillary line functions as a reference point on the body for a number of procedures, including a thoracentesis and an electrocardiogram (ECG).
Where would you take the Midaxillary skinfold?
Mid-Axillary: A vertical fold on the mid-axillary line which runs directly down from the center of the armpit. Supra-iliac or flank: A diagonal fold just above the front forward protrusion of the hip bone (just above the iliac crest at the midaxillary line).
What is the area under the armpit called?
axillaThe armpit is also called the axilla. Blood and lymph vessels serving the arm travel through the armpit. There are more than 20 lymph nodes (small lumps of tissue that are part of the body's lymphatic system, which helps fight infection) in the armpit.
What is the sternal line?
A vertical line corresponding to the lateral margin of the sternum.
Where is the scapular line?
In anatomical descriptions, an imaginary vertical line parallel to the midline and passing through the tip of the inferior angle of the scapula when the ipsilateral arm is hanging at the side of the body.
How do you draw a mid axillary line?
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What's the Midclavicular line?
Medical Definition of midclavicular line : an imaginary line parallel to the long axis of the body and passing through the midpoint of the clavicle on the ventral surface of the body.
What is line formed in between the anterior and posterior axillary line?
Mid-Axillary Line: A vertical line at mid point between anterior and posterior axillary line.
What is the midaxillary line?
The midaxillary line is an imaginary landmark line that runs through an individual’s torso, separating the body into its anterior, or front, and po...
Where is the midaxillary line located?
The midaxillary line originates in the axilla, or armpit, and passes vertically downwards. It is situated in between the anterior axillary line and...
What is the function of the midaxillary line?
The midaxillary line functions as a reference point on the body for a number of procedures, including a thoracentesis and an electrocardiogram (ECG...
What are the most important facts to know about the midaxillary line?
The midaxillary line is an imaginary line that physicians use as a reference point during a variety of procedures, such as a thoracentesis or an EC...
What is the midaxillary line?
Midaxillary Line. The midaxillary line is an imaginary line between the anterior axillary line and the posterior axillary line. It runs vertically down towards the surface of the body travelling through the tip of the axilla. The anterior axillary line, which goes through the anterior axillary skinfold, and the posterior axillary line, ...
Where is the anterior axillary line?
The anterior axillary line is the imaginary line that starts from the mid of the middle clavicle and the lateral end of the clavicle. It is on the anterior torso which is marked by the anterior axillary fold (which is formed by the lateral edge of the pectoralis major muscle).
How many axillary lines are there?
Posterior Axillary Line. There are three axillary lines, anterior axillary line, midaxillary line and posterior axillary line. Whenever there is abduction of the arm from the body by 90 degrees, by the anterior axillary fold, through the middle of the axilla, as well as from the posterior axillary fold imaginary vertical lines can be drawn ...
What is the line between the scapula and the vertebral column?
These lines are respectively, referred to as the anterior axillary line, the midaxillary line, and the posterior axillary line. The scapular line is a line drawn vertically from the superior and inferior poles of the scapula and the vertebral line is a line drawn down towards the center of the vertebral column.
Which line goes through the anterior axillary skinfold?
The anterior axillary line , which goes through the anterior axillary skinfold, and the posterior axillary line, which passes through the posterior axillary skinfold, are parallel to this line. It is important to note that the midaxillary line is used in thoracentesis and V6 ECG lead is placed on this landmark.
Where is the V7 ECG lead located?
It is to be noted that the V7 ECG lead is placed on the left posterior axillary line in the fifth intercostal space.
What is the midaxillary line?
The midaxillary line is a coronal line on the torso between the anterior and posterior axillary lines. It is a landmark used in thoracentesis, and the V6 electrode of the 10 electrode ECG. The posterior axillary line is a coronal line on the posterior torso marked by the posterior axillary fold .
What is the line between the clavicle and the axillary?
Axillary lines. The axillary lines are the anterior axillary line, midaxillary line and the posterior axillary line. The anterior axillary line is a coronal line on the anterior torso marked by the anterior axillary fold. It's the imaginary line that runs down from the point midway between the middle of the clavicle and the lateral end ...
Where is the mid-inguinal line?
The mid-inguinal point, a point midway between the anterior superior iliac spine and the pubic symphysis.
What are horizontal lines?
Horizontal lines: Level of the sternal angle, and zipho-sternal line. Anatomical "lines", theoretical lines drawn through structures, are also used to describe anatomical location. For example: The midaxillary line, a line running vertically down the surface of the body passing through the apex of the axilla (armpit).
What is the line between the lumbar spine and the iliac crest?
Intercristal line, which is a transverse line passing across the lumbar spine between the superior aspects of the iliac crests. Mid-dorsal line, the intersection between the dorsal skin and the median plane. Mid-ventral line, the intersection between the ventral skin and the median plane.
Electrode Placement
Up to 50% of cases have the V1 and V2 electrodes in a more superior location, which can mimic an anterior MI and cause T wave inversion.
Lead Groups
The ECG leads are grouped into two electrical planes. The frontal leads (Lead I-III, aVR-F) view the heart from a vertical plane, while the transverse leads (V1-V6) view the heart from a horizontal plane.
12-Lead Explained
One of the most common questions regarding a 12-lead ECG is why there are only 10 electrodes. It’s important to fully understand what the term “lead” actually means. A lead is a view of the electrical activity of the heart from a particular angle across the body. Think of a lead as a picture of the heart and the 10 electrodes give you 12 pictures.
Reducing Artifact
The heart’s electrical signal is very small and unfortunately this can be combined with other signals of similar frequency to create artifact. It’s not uncommon for 12-lead ECG’s to have some form of artifact; however, it’s important to try to reduce any interference to ensure an accurate ECG.
Where is the inferior margin of the parietal pleura located?
As previously mentioned, the inferior border of the parietal pleura is located more inferiorly to the lung, resulting in the formation of pleural recesses. The surface relations of the inferior margin of the parietal pleura can be pinpointed on the surface at three different areas around the thorax; the midaxillary line, the midclavicular line and the vertebral column. These external reference points are important to know for accessing the pleural cavity without causing damage to the lung.
What is the space between the parietal and visceral pleura?
The space between the parietal and visceral pleura is the pleural cavity. The lung itself is not located within the pleural cavity , rather it is surrounded by it. The function of the pleura is to allow optimal expansion and contraction of the lungs during breathing.
What is the parietal pleura?
The parietal pleura is the layer of pleura associated with the walls of the pleural cavity. It lines the internal aspect of the thoracic wall, the thoracic surface of the diaphragm and separates the pleural cavity from the mediastinum.
What are the two layers of the pleura?
The pleurae are two layers of serous membrane that form the boundaries of the pleural cavity. There are two types of pleura; parietal and visceral. The parietal pleura is the thicker and more durable outer layer that lines the inner aspect of the thoracic cavity and the mediastinum. The visceral pleura is the more delicate inner layer of pleura that lines the outer surface of the lung itself. The parietal and visceral layers are not entirely separate, rather they are continuous with each other at the hilum of the lung. Each layer consists of a single layer of mesothelial cells and supporting connective tissue including collagen, elastin, blood vessels and lymphatics. The pleural cavity containing a small amount of pleural fluid is contained between the parietal and visceral layers of pleura.
How to describe the location of the parietal and visceral pleura?
A common way of describing the location of the parietal and visceral pleura relative to one another is by thinking of pushing your fist into an underinflated balloon, a useful analogy for the developing lung. Your fist represents the developing lung and the balloon, the pleural cavity.
What is the pleural space?
Pleural space. The pleural cavity surrounds the lungs in the thoracic cavity. There are two pleural cavities, one for each lung on the right and left sides of the mediastinum. Each pleural cavity and it’s enclosed lung are lined by a serous membrane called pleura.
Why is the right lung on the same side?
The build-up of fluid in the pleural space causes the lung on the same side to be pushed upwards. Because the right and left pleural cavities are separate from each other, the opposite lung will not be affected unless its surrounding pleural cavity is also compromised.
