Mammary System

Question 1

a distinguishing feature of mammals is

Answer 1

production of milk

Question 2

the mammary glands are composed of what

Answer 2

apocrine glands or merocrine glands, AND a duct system

Question 3

apocrine gland

Answer 3

a gland that loses part of the cell during secretion

Question 4

merocine gland

Answer 4

a gland that does not lose part of the cell during secretion

secretion of milk proteins via exocytosis

Question 5

the mammary gland is what kind of gland

Answer 5

apocrine gland

Question 6

external opening of the mammary gland

Answer 6

streak canal

Question 7

_____ has a streak canal for each mammary gland

Answer 7

teat or nipple

Question 8

T or F: the number of teats and number of mammary glands per teat are different in eat species

Answer 8

true

Question 9

the three ways mammary glands can be in different species are

Answer 9

pelvic (inguinal)
abdominal
pectoral ( thoracic)

Question 10

Oxytocin is

Answer 10

a hormone that is excreted from the posterior pituitary

Question 11

oxytocin is responsible for

Answer 11

milk let-down in mammals

Question 12

STRUCTURES

Question 13

external appearance

Answer 13

teat or breast

Question 14

the mammary gland includes

Answer 14

alveoli and collecting ducts drained from the teat by a single streak canal

Question 15

mammary glands are _______ producing _______

Answer 15

milk; tissue

Question 16

external part

Answer 16

teat

Question 17

the teat is used for

Answer 17

suckling offspring

Question 18

alveolus

Answer 18

hollow ball of cells

Question 19

the alveolus forms and secretes

Answer 19

milk

Question 20

myoepithelial cells

Answer 20

contractile cells that surround the alveolus

Question 21

what contracts to force milk into the duct system

Answer 21

myoepithelial cells

Question 22

fine duct system/alveolar ducts

Answer 22

connects the alveoli to the collecting ducts

Question 23

collecting ducts

Answer 23

collect milk from the fine duct system and transport the milk to the gland cistern

Question 24

gland cistern

Answer 24

collects milk from the collecting ducts and stores it

Question 25

what is the largest storage area of the mammary gland

Answer 25

gland cistern

Question 26

teat cistern

Answer 26

collects secreted milk from the gland cistern

Question 27

streak canal

Answer 27

milk exit out of the teat from the teat cistern

Question 28

what 2 structures are not present at the birth of a female

Answer 28

alveoli and fine duct system

Question 29

estrogen regulates

Answer 29

ductal growth in the mammary system

Question 30

what is needed to support the weight of the udder or breast

Answer 30

ligaments

Question 31

medial suspensory ligament

Answer 31

provides the primary support for the udder

Question 32

lateral suspensory ligaments

Answer 32

provide additional support

Question 33

skin

Answer 33

provides a small amount of support for the udder and provides protection from microorganisms

Question 34

what ligament runs down the middle of the udder

Answer 34

medial suspensory

Question 35

what ligament is located on the sides of the udder

Answer 35

lateral suspensory

Question 36

pudic artery

Answer 36

main blood supply to the udder

Question 37

what are the 2 blood return pathways to the heart

Answer 37

subcutaneous abdominal veins (milk veins) and pudic veins