Skelatal, Muscalar, and Integumentary system review.

Question 1

What is the primary function of the skeletal system?

Answer 1

Support and protect the body.

Allows body to move

Question 2

What is the soft tissue that bones contain called? What does it do?

Answer 2

Bone marrow.

Produces red blood cells and white blood cells and stores fat.

Question 3

What are the three joints called? What are examples of each?

Answer 3

Gliding-hand/wrist
Ball-and-Socket-shoulder/hip
Hinge-knee/elbow

Question 4

What are joints held together by?

Answer 4

Ligaments

Question 5

What are ligaments?

Answer 5

Strong bands of connective tissue

Question 6

What is the primary function of the muscular system?

Answer 6

Movement and flexibility.

Question 7

What are the three kinds of muscle?

Answer 7

Smooth
Cardiac
Skeletal

Question 8

Describe smooth muscle.

Answer 8

Found in digestive tract and walls of blood vessels. It is involuntary.

Question 9

Describe cardiac muscles

Answer 9

Found only in heart

Involuntary

Question 10

Describe skeletal muscle

Answer 10

Attached to bones for movement. Helps protect inner organs. Involuntary and voluntary muscles.

Question 11

What are tendons?

Answer 11

Strands of tough connective tissue that connects your skeletal muscle to bones.

Question 12

What is a muscle that bends a part of your body called? What are examples?

Answer 12

Flexor-biceps, hamstrings

Question 13

What is a muscle that straightens a part of your body called? What are examples?

Answer 13

Extensor-triceps, quadriceps

Question 14

What is the primary function of the integumentary system?

Answer 14

Protects bodies from water, UV rays, foreign particles, and drying out.
Allows you to feel things around you
Keeps you constant
Gets rid of waste

Question 15

Skin color is determined by what chemical?

Answer 15

Melanin

Question 16

Describe melanin.

Answer 16

The more melanin the darker the skin.
Absorbs UV light from sun
-protects body from skin cancer
-but.. still vulnerable

Question 17

What is the epidermis? Describe it

Answer 17

The surface layer of cells

• only two sheets of paper thick
• thicker on the palms and soles of feet
• most cells are dead

Question 18

What is keratin?

Answer 18

Protein that fills epidermis cells

-helps make skin tough

Question 19

What is the dermis? Describe it

Answer 19

The layer of skin below the epidermis

• provides strength and flexibility
• contains blood vessels, hair follicles, nerves, pigment, and oil and sweat glands

Question 20

Where are the only living cells found?

Answer 20

Hair follicle

Question 21

Where does hair get its color from?

Answer 21

Melanin

Question 22

Where is the nail root?

Answer 22

Base of the nail