Chapter 6 - Cardiorespitory, Endocrine, And Digestive Systems

Question 1

Cardiorespitory System

Answer 1

A system of the body composed of the heart, blood, blood vessels, lungs, and airways.

Question 2

Cardiovascular system

Answer 2

A system of the body, also known as the circulatory system, that transports blood to tissues of the body.

Question 3

Thoracic cavity

Answer 3

Chamber within the chest that contains the heart and lungs.

Question 4

Mediastinium

Answer 4

The space in the chest between the lungs that contains all the internal organs of the chest (e.g., heart, esophagus) except the lungs.

Question 5

Cardiac muscle

Answer 5

Muscle of the heart.

Question 6

Skeletal muscle

Answer 6

The type of muscle tissue that connects to bones and generates the forces that create movement.

Question 7

Smooth muscle

Answer 7

An involuntary nonstriated muscle type that is found in organs.

Question 8

Myofibrils

Answer 8

The contractile components of a muscle cell; the myofilaments (actin and myosin) are contained within a myofibril.

Question 9

Sarcomere

Answer 9

The structural unit of a myofibril, composed of actin and myosin filaments between two Z-lines.

Question 10

Atrium (atria)

Answer 10

Superior chamber(s) of the heart that gathers blood returning to the heart.

Question 11

Ventricle

Answer 11

Inferior chamber of the heart that pumps blood to the lungs and body.