Chapter 11- Instruction To The Human Body Lessons 1-3

Question 0

Cell membrane

Answer 0

Forms outside border of cell, controls what enters and leaves the cell

Question 1

Cell

Answer 1

The basic unit of structure and function in a living thing

Question 2

Nucleus

Answer 2

Control center of cell

Question 3

Cytoplasm

Answer 3

A clear gel-like substance that keeps organelles from floating around

Question 4

Tissue

Answer 4

A group of similar cells that perform the same function

Question 5

Muscle tissue

Answer 5

Contracts and shortens for movement

Question 6

Nerve tissue or nervous tissue

Answer 6

Carries electrical message between brain and body

Question 7

Connective tissue

Answer 7

Connects and supports body

Question 8

Epithelial tissue

Answer 8

Covers the inside and outside surface of body

Question 9

Organ

Answer 9

A structure that is made up of different tissues

Question 10

Organ system

Answer 10

A group of organs that work together, carrying out major functions

Question 11

Skeleton

Answer 11

The bones of an organism

Question 12

Skeletal muscles

Answer 12

Attached to bones to force movement

Question 13

Joint

Answer 13

Places at which skeletal system can move

Question 14

Nutrient

Answer 14

Substance that you get from food that your body needs, to carry out certain processes

Question 15

Absorption

Answer 15

When nutrients move into bloodstream

Question 16

Gland

Answer 16

Organs that release chemical signals directly into the blood

Question 17

Stimulus

Answer 17

Signal in enviroment

Question 18

Response

Answer 18

Reaction

Question 19

Hormone

Answer 19

Chemical signals in the bloodstream

Question 20

Homeostasis

Answer 20

The condition in which an organism’s internal environment is kept stable in spite of changes in the external environment.

Question 21

Stress

Answer 21

The reaction of a person’s body to potentially threatening, challenging, or disturbing events.