(1) Chemicals inhaled from cigarettes constrict tiny blood vessels in the skin, thus reducing the oxygen and nutrient supply to delicate facial tissue.

(2) Doctors treat shock by stabilizing blood pressure with medications that increase the heart rate, constrict large blood vessels, or increase the volume of blood the heart pumps.

(3) This will help constrict the blood vessel and stop the bleeding.

(4) Pilocarpine drops may be used to constrict the pupil and re-establish circulation of aqueous humor.

(5) Chemicals that constrict the blood vessels

(6) He looked so desperate my throat began to constrict .

(7) He felt his throat constrict

(8) I felt my throat constrict , and not trusting myself to speak, I nodded.

(9) It can also constrict blood vessels and cause chest pain or irregular heart beats.

(10) Peptides produced in the milk during culturing seem to inhibit chemicals that constrict vessels and increase blood pressure.

(11) Hot tears sprung into her eyes and her throat began to constrict .

(12) As stress can make blood vessels constrict and blood pressure rise, it may also reduce the heart's ability to relax and fill with blood, researchers says.

(13) But it takes about four minutes for a rat to die of asphyxiation, whereas a snake can constrict a rodent to death in just one.

(14) He had wanted to start some form of conversation, but before he could, his throat would constrict in nervousness.

(15) Other pollutants, such as nitrogen dioxide and sulfur dioxide, irritate the eyes, constrict air passages and lower the body's resistance to colds and other respiratory illnesses.

(16) So Alex loved someone, I felt my heart constrict tightly as I registered what he said.

(17) Clinicians should remember to u251cu00f6u251cu00e7u251cu2510fill up the tanku251cu00f6u251cu00e7u251cu00fb before attempting to constrict the vessel.

(18) Choking back a sob, he felt his throat constrict .

(19) In both cases, nicotine is absorbed and may constrict blood vessels and raise blood pressure.

(20) And how does your perception of reality enlarge or constrict the life that calls you forward?