What is the retractor muscle used for?
The retractor muscle contracts to retract the penis into the sheath and relaxes to allow the penis to extend from the sheath.
What muscle is used to compress abdominal contents?
transversus abdominis muscles
The transversus abdominis muscles are the deepest of the ab muscles, and their job is to tense the abdominal wall, compress abdominal viscera (the internal organs of the abdomen), and stabilize the pelvis and lumbar spine. One transversus abdominis muscle wraps around each side of the abdomen.
What is a retractor used for in surgery?
In varying forms, retractors are used to hold an incision open, hold back tissues or other objects to maintain a clear surgical field, or reach other structures. They can either be hand-held or self-retaining via a ratcheting mechanism. Tube: Used primarily for surface suction and some intra-abdominal suction.
How are the rectus abdominis muscles handled during a Pfannenstiel incision?
Again., skin, subcutaneous tissue, and rectus sheath are divided transversely as noted above for the Pfannenstiel incision, carrying the incision past the lateral border of the rectus muscle. However, instead of separating the rectus muscles and fascia, the rectus muscles are cut transversely.
What is retracted anatomy?
Short definition of Retraction (in the context of a term to describe movement of the body): Retraction is movement of a body part in the posterior direction, i.e. being drawn backwards. The only joints capable of retraction are the shoulder joint and the jaw.
What are the scapular retractor muscles?
The Scapular Retraction Muscles are the Trapezius, Rhomboids, and Latissimus Dorsi. These are all muscles of the back.
What are the 4 abdominal muscles?
Muscles of the Abdomen These muscles of the anterolateral abdominal wall can be divided into four groups: the external obliques, the internal obliques, the transversus abdominis, and the rectus abdominis (Figure 16.16 and Table 16.6). Figure 16.16.
What type of muscle is in the stomach?
Smooth muscle
Smooth muscle is found within the walls of our internal organs and structures such as the stomach.
What is a malleable retractor?
These retractors are made from malleable stainless steel, allowing for easy modification of retractor angle and shape. The blades are available in a variety of sizes depending on the surgeon’s need and are commonly used during orbital dissection to keep orbital fat out of the surgical field.
How do you describe abdominal incisions?
An abdominal incision is a cut made through your skin on the belly to expose the abdominal organs or to facilitate an operation or a procedure. Incisions or cuts on your belly are mostly made during an emergency or a planned surgery.
Which abdominal incision is better for healing?
Incision through the umbilicus has no negative effect on wound healing. The upper abdominal incision gives good access to the viscera in the upper abdomen and this incision can be combined with a thoracotomy for oesophageal surgery. Lower abdominal incisions can also be midline, paramedian or pfannenstiel incisions.
What is a retractor in anatomy?
Muscle that draws a body part backward, e.g., middle part of trapezius muscle is a retractor of the scapula; horizontal fibers of temporalis muscle serve to retract the mandible. retractor. 1. an instrument for holding open the edges of a wound or edges of a fissure such as the eyelids. 2. a muscle that retracts.
What is a trapezius retractor?
re·trac·tor. 1. An instrument for drawing aside the edges of a wound or for holding back structures adjacent to the operative field. 2. A muscle that draws a part backward (e.g., the middle part of the trapezius muscle is a retractor of the scapula; the horizontal fibers of the temporalis muscle serve to retract the mandible).
What is the retractor muscle in a bull?
The retractor muscle contracts to retract the penis into the sheath and relaxes to allow the penis to extend from the sheath. In bulls, protrusion is not affected much by erection, but more by relaxation of the retractor penis muscle and straightening of the sigmoid flexure. Bassett, E. Gertrude.
What is circumbilical retractor muscle attachment?
Circumbilical retractor muscle attachment areas found in Tropidodiscus (Gastropoda, Bellerophontoidea). Retractor muscles, represented by the longitudinal muscle of the cubomedusan tentacle and the septal retractor muscle of polyps, must be capable of an unusually high degree of contractility.