Unit 1

Question 1

What are the 12 organ systems?

Answer 1

Cardiovascular, digestive, endocrine, integumentary, immune, lymphatic, muscular, nervous, reproductive, respiratory, skeletal, urinary

Question 2

Cardiovascular Roles

Answer 2

1. Transports oxygen, CO2 hormones, nutrients & water
2. Regulates body temp.

Question 3

Cardiovascular Components

Answer 3

Heart, blood vessels (arteries veins, capillaries)

Question 4

Digestive Roles

Answer 4

1. Breaks down food, absorbs nutrients, stores energy

Question 5

Digestive Components

Answer 5

mouth, esophagus, stomach, liver, small and large intestines, pancreas, anus, and gallbladder

Question 6

Endocrine Roles

Answer 6

1. Glands that produce hormones, growth and development, tissue function, reproduction, sleep & mood

Question 7

Endocrine Components

Answer 7

pituitary gland, thyroid gland, parathyroid gland, adrenal gland, pancreas, ovaries, testicles

Question 8

Immune Roles

Answer 8

1. Defends body against pathogens

Question 9

Immune Components

Answer 9

lymph nodes, spleen, bone marrow, lymphocytes, thymus, white blood cells (leukocytes), tonsils and adenoids, appendix

Question 10

Integumentary Roles

Answer 10

1. barrier, retains fluid, protects
2. regulates body temp
   3.eliminates waste (through sweat)

Question 11

Integumentary Components

Answer 11

skin (largest organ), hair, nails

Question 12

Lymphatic Roles

Answer 12

1. helps defend the body, makes & moves lymph

Question 13

Lymphatic Components

Answer 13

lymph nodes, lymph ducts, lymph vessels

Question 14

Muscular Roles

Answer 14

1. supports movement, maintains posture
   2.help circulate blood
   3.generate heat

Question 15

Muscular Components

Answer 15

appx. 650 named muscles

Question 16

Nervous Roles

Answer 16

1. controls voluntary and involuntary actions
   2.sends signals between brain and body

Question 17

Nervous Components

Answer 17

brain, spinal cord, nerves, nervous tissue

Question 18

Reproductive Roles

Answer 18

1. human reproduction

Question 19

Reproductive Components

Answer 19

Male: testicles, vas deferens, penis, epididymis, prostate
Female: clitoris, labia minor, labia majora, vagina, uterus, cervix, fallopian tubes, ovaries

Question 20

Respiratory Roles

Answer 20

transports oxygen and CO2

Question 21

Respiratory Components

Answer 21

lungs, trachea, larynx, pharynx, sinus, mouth, nose

Question 22

Skeletal Roles

Answer 22

1. provides support, movement, protection
2. blood cell production
3. calcium storage

Question 23

Skeletal Components

Answer 23

206 bones, tendons, ligaments, cartilage

Question 24

Urinary Roles

Answer 24

produces, stores, eliminates urine

Question 25

Urinary Components

Answer 25

kidneys, ureter, bladder, sphincter, urethra

Question 26

Homeostasis

Answer 26

characteristic of a system that regulates its internal environment to keep conditions stable

Question 27

Autoregulation

Answer 27

tissue, cell or organ that automatically adjusts WITHOUT involvement of nervous system

Question 28

Extrinsic regulation

Answer 28

nervous or endocrine system control/adjusting

Question 29

Positive Feedback

Answer 29

amplify stimuli, leads to cascade effect

Question 30

Negative Feedback

Answer 30

counteract stimuli