Muscular System

Question 1

A system that includes muscle cells and muscle tissues.

Answer 1

Muscular System

Question 2

Functions of The Muscular System

Answer 2

Body movement (Locomotion)
Maintenance of posture Respiration
Communication (Verbal and Facial)
Constrictions of organs and vessels
Heart beat
Production of body heat (Thermogenesis)
- diaphragm and intercostal contractors
- peristalsis of intestinal tract
- Vasoconstriction of blood vessels and other structures (Pupils)

Question 3

Properties of Muscles

Answer 3

Excitability
Contractility
Extensibility
Elasticity

Question 4

Capacity of muscle to respond to a stimulus.

Answer 4

Excitability

Question 5

Ability of a muscle to shorten and generate pulling force.

Answer 5

Contractility

Question 6

Muscle can be stretched back to its original length.

Answer 6

Extensibility

Question 7

Ability of muscle to recoil to original resting length after stretched.

Answer 7

Elasticity

Question 8

Makes up the thick middle
layer of the heart.

Answer 8

Cardiac Muscle

Question 9

Consists of thick and thin filaments that are not arranged into sarcomeres giving it a nonstriated pattern.

Answer 9

Smooth Muscle

Question 10

Is found throughout the body and functions to contract in response to a stimulus.

Answer 10

Skeletal Muscle

Question 11

Is a rare type of myositis (inflammation of muscles and their associated tissues, including blood vessels).

Answer 11

Polymyositis

Question 12

Is a rare inflammatory muscle disease. It can affect people of any age or sex, though it’s
more often seen in women

Answer 12

Dermatomyositis

Question 13

Is a group of inherited myopathies. These conditions all cause muscle loss and weakness.

Answer 13

Muscular Dystrophy

Question 14

Is an autoimmune neuromuscular disease. Neuromuscular diseases are caused by problems with how the nerves and muscles work together.

Answer 14

Myasthenia gravis

Question 15

Is also called Lou Gehrig’s disease. This group of rare neurological diseases affects the nerve cells in the brain and spinal cord.

Answer 15

Amyotrophic lateral sclerosis (ALS)

Question 16

Is a disease that causes the breakdown of skeletal muscle. This breakdown causes myoglobin to release in the bloodstream.

Answer 16

Rhabdomyolysis

Question 17

Also called heart muscle disease, is a disease that affects cardiac muscle.

Answer 17

Cardiomyopathy

Question 18

Also called geriatric muscle disease, is common in older adults. Other types of muscle diseases are less common in older adults

Answer 18

Sarcopenia