102N.6 The Muscular System

Question 1

Myology

Answer 1

Study of structure, function, and diseases of muscles

Question 2

Voluntary muscle

Answer 2

Striated; create movements based on intentional desire; known as skeletal muscles because they’re attached to bones

Question 3

Involuntary muscle

Answer 3

Non-striated; respond automatically to control various body functions, including functions of internal organs

Question 4

Cardiac muscle

Answer 4

Specialized tissue found only in the heart; rugged muscle that functions involuntarily; contraction of the heart , which pumps blood throughout the body

Question 5

Origin

Answer 5

The non moving portion of the muscle attached to bones or other fixed muscle

Question 6

Belly

Answer 6

Term applied to the midsection of muscle

Question 7

Insertion

Answer 7

Portion of muscle joined to movable attachments such as bones, moveable muscle, or skin; experiences the most movement when muscle contracts

Question 8

Contraction

Answer 8

Tightening of muscle

Question 9

Expansion

Answer 9

Relaxing of muscle

Question 10

Tendons

Answer 10

Bands of fibrous tissue that attach muscle to bones; allows bones to move when muscles contract and expand

Question 11

Ligaments

Answer 11

Dense, strong bands of fibrous tissue that connect bones to each other; connects bones in joints

Question 12

Pronator

Answer 12

Runs across the front of the lower part of the radius and ulna; turns palm inward and outward

Question 13

Supinator

Answer 13

Runs parallel to the ulna; turns the palm up

Question 14

Flexor

Answer 14

Mid-forearm on inside, group of muscles that straightens the fingers and wrist

Question 15

Extensor

Answer 15

Mid-forearm, on the outside of the arm; group of muscles that straightens the fingers and wrist

Question 16

Adductor

Answer 16

Stretches over fingers; draws the fingers together

Question 17

Abductor

Answer 17

Stretches over fingers; separates the fingers

Question 18

Tibialis anterior

Answer 18

Covers the front of shin; bends the foot upward and inward

Question 19

Gastrocnemius

Answer 19

Back of leg attached to the lower, rear surface of the heel; pulls the foot down

Question 20

Soleus

Answer 20

Originates in the upper portion of the fibula from just below the knee to the heel; bends the foot down

Question 21

Extensor digitorum

Answer 21

Outside of the lower leg; bends the foot upward and extends the toes