Skeletal, Muscular, And Integumentary Systems

Question 1

Muscle tissue

Answer 1

Composed of muscles that contract. Creates facial expressions and keep the eyes in focus

Question 2

Skeletal muscle

Answer 2

Moves the bones in your trunk, limbs, and face

Question 3

Smooth muscle

Answer 3

Handles body functions that you cannot control consciously like the movement of food through your digestive system

Question 4

Cardiac muscle

Answer 4

Found in your heart, pumps blood through your body

Question 5

Nervous tissue

Answer 5

Contains cells that receive and transmit messages in the form of electrical impulses

Question 6

Epithelial tissue

Answer 6

Consists of layers of cells that line or cover all internal and external body surfaces

Question 7

Connective tissue

Answer 7

Binds, supports, and protects structures in the body

Question 8

Cranial cavity

Answer 8

Encases the brain

Question 9

Spinal cavity

Answer 9

Surrounds the spinal cord

Question 10

Diaphragm

Answer 10

Wall of muscle that separates the two main cavities in the trunk of the body

Question 11

Thoracic cavity

Answer 11

Contains the heart, the esophagus, and the organs of the respiratory system

Question 12

Abdominal cavity

Answer 12

Contains organs of the digestive, reproductive, and excretory systems

Question 13

Periosteum

Answer 13

A tough membrane covering the bones surface

Question 14

Compact bone

Answer 14

A hard material under the periosteum

Question 15

Ossification

Answer 15

The process by which cartilage slowly hardens into bone as a result of the deposition of minerals

Question 16

Epiphyseal plate

Answer 16

Where bone elongation takes place

Question 17

Joint

Answer 17

The place where two bones meet

Question 18

Fixed joints

Answer 18

Prevent movement. They are found in the skull

Question 19

Semimovable joints

Answer 19

Permit limited movement. Hold the bones of the vertebrae in place

Question 20

Movable joints

Answer 20

Enable the body to perform a large range of movements

Question 21

Hinge joint

Answer 21

Allows thing like your elbow to move forward and back

Question 22

Ball and socket joint

Answer 22

Allow things like your shoulder to move forward, back, up, down and in a full circle

Question 23

Pivot joint

Answer 23

It allows you to turn your head from side to side

Question 24

Saddle joint

Answer 24

Allows you to rotate your thumbs

Question 25

Gliding joints

Answer 25

Allow bones to slide over one another

Question 26

Ligaments

Answer 26

Tough bands of connective tissue that hold the bones of the joint in place

Question 27

Synovial fluid

Answer 27

Helps protect the end of bones from damage

Question 28

Muscle fibers

Answer 28

Elongated cells that make up skeletal muscle tissue

Question 29

Fascicles

Answer 29

Dense bundles of skeletal muscle fibers

Question 30

How does a muscle contract

Answer 30

When a muscle contracts myosin filaments and actin filaments interact to shorten the sarcomere. The myosin heads bend inward with the actin filaments. The myosin heads will let go and bend back into their original position, attach to a new point on the actin filaments and pull again which continues to shorten it. This causes the muscle to then contract

Question 31

Origin

Answer 31

The point where the muscle attaches to the stationary bone

Question 32

Insertion

Answer 32

The point where the muscle attached to the moving bone

Question 33

Sebum

Answer 33

A fatty substance

Question 34

What are the human body’s four main types of tissues

Answer 34

Muscle, nervous, epithelial, and connective