Letter: l

Determines the concentration of total protein present in a sample. Proteins are purified by acid precipitation, minimizing interference to the assay from predict chemicals. Results are expressed as mg of total protein extracted mg/gm of sample, mg/dm2 as a per surface area. The greater the number, the greater the amount of protein present. The difference between the Bradford and the Lowry is that they are based on the recognition of different amino acids and are affected by different interfering substances.

Location: psoas muscle. Supplies the anterolateral abdominal wall, external genitalia, part of the pelvic girdle, and lower extremities. Contains both somatic and autonomic elements.

The five bones of the spine supporting the lower back.

The space in the interior of a tubular structure, such as an artery or the intestine; the volume enclosed within the membranes of a mitochondrion or of the endoplasmic reticulum; the bore of a catheter or hollow needle.

The impedance (resistance) encountered. Lung resistance is due to nonelastic resistance caused by the combined effect of airway resistance, tissue viscous resistance, scaring and progression of interstitial or lung disease.

A complex phospholipid substance in the lung that regulates the amount of surface tension of the fluid lining the alveoli. Exogenous lung surfactant from natural and artificial sources is available for treating patients with respiratory distress syndrome. Premature infants often have insufficient amount of this fluid. SYN pulmonary surfactant.

Lung spirometric measurements, as follows: expiratory reserve volume (ERV), Inspiratory reserve volume (IRV), residual volume (RV), tidal volume (Vt).

Specialized tissue of the lymphatic system where concentrated numbers of white blood cells reside located in bundles throughout the body.

Inflammation and enlargement of lymph nodes as a result of a benign, localized, or systemic infection; enlargement is a clinical indication that a person may have some type of bacterial or viral infection.

Infected or diseased lymph nodes.