EMT - Chapter 3 Key Terms

Question 1

Alveoli

Answer 1

The air sacs of the lungs in which the exchange of oxygen and carbon dioxide takes place

Question 2

Aorta

Answer 2

The principal artery leaving the left side of the heart and carrying freshly oxygenated blood to the body

Question 3

Artery

Answer 3

A blood vessel, consisting of three layers of tissue and smooth muscle, that carries blood away from the heart

Question 4

Brachial Artery

Answer 4

The artery of the arm that branches at the elbow into the radial and ulnar arteries; used to determine the infant’s pulse

Question 5

Capillaries

Answer 5

The small blood vessels through whose walls various substances pass into and out of the tissues and on to the cells

Question 6

Carotid Artery

Answer 6

The major arteries that supply blood to the head and brain

Question 7

Femoral Artery

Answer 7

The principal artery of the thigh. It supplies blood to the lower abdominal wall, external genetalia, and legs. It can be palpated in the groin area

Question 8

Perfusion

Answer 8

The circulation of oxygenated blood within an organ or tissue in adequate amounts to meet the cells’ current needs

Question 9

Platelets

Answer 9

TIny, disk-shaped elements that are much similar than cells. They are essential in the initial formation of a blood clot, the mechanism that stops bleeding

Question 10

Pulse

Answer 10

The wave of pressure created as the heart contracts and forces blood out of the left ventricle and into the major arteries

Question 11

Quadrant

Answer 11

A section of the abdominal cavity. Imagine a horizontal and a vertical line intersecting at the umbilicus, dividing the abdomen into four equal parts

Question 12

Radial Artery

Answer 12

The major artery in the forearm. It is palpable at the wrist on the thumb side

Question 13

Trachea

Answer 13

The windpipe; the main trunk for air passing to and from the lungs

Question 14

Vein

Answer 14

Any blood vessel that carries blood from the tissues to the heart

Question 15

Clavicle

Answer 15

The collar bone

Question 16

Femur

Answer 16

The thigh bone; the longest and one of the strongest bones in the body

Question 17

Fibula

Answer 17

The outer and smaller bone of the two bones of the lower leg

Question 18

Humerus

Answer 18

The supporting bone of the upper arm

Question 19

Joint

Answer 19

The place where two bones come in contact

Question 20

Spinal Cord

Answer 20

An extension to the brain, composed of virutally all the nerves carrying messages between the brain and the rest of the body. It lies inside of and is protected by the spinal canal.

Question 21

Sternum

Answer 21

The breast bone

Question 22

Thorax

Answer 22

The chest cavity that contains the heart, esophogus, and great vessels

Question 23

Tibia

Answer 23

The shin bone; the larger of the two bones of the lower legs

Question 24

Ulna

Answer 24

The inner bone of the forearm, on the side opposite of the thumb

Question 25

Vertebrae

Answer 25

The 33 bones that make up the spinal column