Test Review: Muscular System

Muscles are able to ​ (a)   and relax. They ​ (b)   able to complete any other movements on a microscopic scale. Muscles generally work in ​ (c)   . The muscle that contracts is called a ​ (d)   and the muscle that relaxes is called the ​ (e)   .

• contract
• are not
• pairs
• flexor
• extensor
• alone
• Groups of 3
• are
• rotate

Match the term to its description

• Cartilage

• Acts as levers to help muscles move the body

• Adipose

• Connects bone to bone

• Tendon

• Provides cushioning and protection, can be found in the hypodermis and other locations

• Bone

• Sits on the end of bones to reduce friction when the joint moves

• Ligament

• Connects muscle to bone

Reorder the following from biggest (around the most tissues) to smallest (around the least amount of tissue)

• Perimysium

• Deep fascia

• Endomysium

• Epimysium

Tags

NGSS.HS-LS1-2

Skeletal muscle tissue contains

• Multiple nuclei

• A single nucleus

• Striations

• Intercalated discs

• Branching

Smooth muscle tissue contains

• Multiple nuclei

• A single nucleus

• Striations

• Intercalated discs

• Branching

Cardiac muscle tissue contains

• Multiple nuclei

• A single nucleus

• Striations

• Intercalated discs

• Branching

Organize the muscles by the type of muscle tissue that make them up

Groups:

(a) Cardiac Muscle

,

(b) Smooth Muscle

,

(c) Skeletal Muscle

• Tricep

• Bladder sphincter

• Muscles of the small intestine

• Finger Flexors

• Hamstring

• Muscle surrounding the blood vessels

• Myocardium (middle layer of the heart)

Match the muscle tissue to its name

• Cardiac

• 
• Skeletal

• 
• Smooth

• 

When a leg abduction is completed as shown (a straight left leg is raised upwards and to the left side), the ​ (a)   are the flexors and the ​ ​ (b)   are the extensors. The ​ (c)   is the origin and the ​ ​ (d)   is the insertion.

• abductors
• adductors
• pelvis
• femur

Label the sarcomere

a

b

c

d

Actin

Myosin

m line

z line