12- (2pts) Ultrasound elastography: a. is used to obtain information about the mechanical behavior of tissues b. is complementary to B-mode imaging c. requires additional signal processing with respect to B-mode imaging d. requires a different ultrasound transducer with respect to B-mode imaging

"A" used to obtain mechanical behaviour of tissues.

Explanation:

Ultrasound elastography basically checks the elasticity of the organ or tissue .it is mostly used to detect liver diseases.

A

Explanation: Ultrasound elastography is used to measure the stiffness or elasticity of organs inside the body. It is particularly useful for detecting the presence and severity of liver disease.

the ileocecal valve (also called bauhin valve), which limits the rate of food passage into the cecum and may prevent material from returning to the small intestine.

answer: no, they are not.*

although rubber bands that contain excessive amounts of dye, toxins, or additives are sometimes toxic, most rubber bands do not cause any health issues. since they are typically made of latex, (a natural substance that is extracted from trees) they are not dangerous in any way if you chew them or accidentally ingest a piece of rubber band. however, chewing rubber bands does pose a choking hazard and is not a good habit to have.

*depending on the type of rubber band. the typical rubber bands that you see at stores are not toxic, but other types of rubber or latex that contains certain chemicals may be unhealthy and hazardous.