Lesson 31 Terms

Question 1

Adenoids

Answer 1

an area of the body where lymph nodes are clustered together creating a protective ring against invaders that may enter through the mouth or nose

Question 2

Arrector pili

Answer 2

smooth muscles attached to hair follicles

Question 3

Basophils

Answer 3

produced in the bone marrow and are responsible for allergic reactions

Question 4

Chyle

Answer 4

the term used when lymph fluid collects fat it turns a milky color

Question 5

Collagen

Answer 5

protein that give skin the ability to stretch and return to its original shape

Question 6

Dermis

Answer 6

second layer of skin tissue

Question 7

Elastin

Answer 7

protein that give skin the ability to stretch and return to its original shape

Question 8

Eosinophils

Answer 8

produced in the bone marrow and release a chemical that attacks large multicellular parasites

Question 9

Epidermis

Answer 9

top layer of skin tissue

Question 10

Epithelial cells

Answer 10

skin cells; rapidly reproduce to replace cells that are lost by pushing cells to the surface

Question 11

Germinative cells

Answer 11

Living cells that reproduce rapidly

Question 12

Hair follicle

Answer 12

tiny pockets in the dermis from which hair grows

Question 13

Integumentary system

Answer 13

a) Includes: skin, hair, and nails

b) Function: protection and sensory input

Question 14

Keratin

Answer 14

hard protein material found in the epidermis, hair, and nails

Question 15

Lingual tonsils

Answer 15

an area of the body where lymph nodes are clustered together creating a protective ring against invaders that may enter through the mouth or nose

Question 16

Lymph nodes

Answer 16

act as filtering and monitoring stations that clean the lymph of dead cells and foreign invaders

Question 17

Lymph vessels

Answer 17

move the fluid to the lymph nodes

Question 18

Lymphocytes

1. T-cells: made and mature in the thymus gland; attack invaders directly
2. B-cells: made in the bone marrow and mature in the spleen; make antibodies to fight specific invaders
3. Natural killer cells: recognize tumor cells and cells that have been infected with viruses and kill the infected cells

Question 19

Melanin

Answer 19

skin pigment

Question 19

Melanin

Answer 19

skin pigment

Question 20

Melanocytes

Answer 20

produce melanin

Question 21

Monocytes

Answer 21

produced in the bone marrow, are the largest white blood cells in the human body

Question 22

Neutrophils

Answer 22

produced in the bone marrow and respond quickly to hold off pathogens

Question 23

Palatine tonsils

Answer 23

areas of the body where lymph nodes are clustered together creating a protective ring against invaders that may enter through the mouth or nose

Question 24

Sebaceous glands

Answer 24

secrete an oil called sebum which softens and waterproofs your skin

Question 25

Sebum

Answer 25

an oil secreted by the sebaceous glands which softens and waterproofs your skin

Question 26

Spleen

Answer 26

the largest lymphatic organ

Question 27

Squamous

Answer 27

flattened dead cells resembling scales

Question 28

Sweat glands

Answer 28

help regulate body temperature and rid the body of waste products

Question 29

T-cells that attack invaders enter...

Answer 29

the bloodstream and reside in the lymphatic tissue

Question 30

Vestigial organs

Answer 30

organs that do not appear to have a function or purpose