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diaphragm

(dī′ă-fram″ )

[L. diaphragma, fr. Gr. diaphragma, stem diaphragmat-, a partition]

1. A thin membrane as is used for dialysis.
2. In microscopy, an apparatus that is located beneath the opening in the stage and permits regulation of the amount of light passing through the object.
3. A rubber or plastic cup that fits over the cervix uteri, used for contraceptive purposes.


CONTRACEPTIVE DIAPHRAGM
4. The dome-shaped skeletal muscle that separates with its upward convexity the abdomen from the thoracic cavity. It contracts to promote inhalation, flattening downward and permitting the lungs to expand. It relaxes to promote exhalation, rising to its dome-shaped position and compressing the lungs.
The origin of the diaphragm is the xiphoid process, the lower six costal cartilages, and the lumbar vertebrae. The diaphragm is directly superior to the liver, the stomach, the spleen, the adrenal glands, and the kidneys; the right side is slightly higher than the left.

MOVEMENT OF RIB CAGE AND DIAPHRAGM DURING RESPIRATION A. Inspiration: Air drawn into lungs; B. Expiration: Air forced out of lungs; SEE: Boerhaave syndrome


MOVEMENT OF RIB CAGE AND DIAPHRAGM DURING RESPIRATION para

Bucky diaphragm

SEE: Bucky, Gustav P.

pelvic diaphragm

SEE: Pelvic floor.

Potter-Bucky diaphragm

SEE: Bucky diaphragm.

slit diaphragm

A gap between the foot processes of podocytes in the renal glomerulus, composed of a filter made of proteins that holds large molecules within the plasma but allows smaller soluble chemicals to pass with water into the urine.

urogenital diaphragm

The perineal membrane, a part of the complex floor of the pelvis. It is conceived of as a musculofascial sheath that lies between the ischiopubic rami and is superficial to the pelvic diaphragm. In males it surrounds the membranous urethra; in females, the vagina.

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Citation

Venes, Donald, editor. "Diaphragm." Taber's Medical Dictionary, 23rd ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/759509/all/diaphragm.
Diaphragm. In: Venes D, ed. Taber's Medical Dictionary. 23rd ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/759509/all/diaphragm. Accessed June 17, 2019.
Diaphragm. (2017). In Venes, D. (Ed.), Taber's Medical Dictionary. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/759509/all/diaphragm
Diaphragm [Internet]. In: Venes D, editors. Taber's Medical Dictionary. F.A. Davis Company; 2017. [cited 2019 June 17]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/759509/all/diaphragm.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - diaphragm ID - 759509 ED - Venes,Donald, BT - Taber's Medical Dictionary UR - https://nursing.unboundmedicine.com/nursingcentral/view/Tabers-Dictionary/759509/all/diaphragm PB - F.A. Davis Company ET - 23 DB - Nursing Central DP - Unbound Medicine ER -