Mammary gland and Male Reproductive tract Lab 4

Question 1

Name the two major ligaments that support the weight of the mammary gland in the cow, goat and sheep. State where each connects to the body

Answer 1

Medial suspensory ligament attaches the muscle to the abdominal wall
Lateral suspensory ligament attaches to the pelvic wall

Question 2

Name the vessel by which blood entering the bovine udder

Answer 2

Pudendal artery

Question 3

Name the vessel by which the blood exits the bovine udder

Answer 3

Pudendal artery

Caudal superficial epigastric

Question 4

Name the types of cells associated with the mammary gland

Answer 4

Mammary epithelial cells

Myoepithelial cells

Question 5

What is mastitis

Answer 5

Inflammation in the udder caused by infection with bacteria or fungi

Question 6

Name two types of penis and describe and what species has which penis

Answer 6

Musclo-cavernous
Increase of diameter is length due to engorgment
i.e. rats, dogs and humans
Fibro-elastic
Retractor muscle and sigmoid flexure extend due to the prupuce, small amount of increase in diameter
i.e. boar, bull and ram

Question 7

What is the orientation of the cat penis

Answer 7

The cats penis direction is caudal

Question 8

Semen consists of two main components. Name them and their sources

Answer 8

Sperm - located in the testis

Seminal fluids - located in the accessory gland make up 95% of semen

Question 9

Name the accessory sex glands in the male reproductive tract

Answer 9

Seminal vesicle
Ampulla
Cowpers gland
Prostate gland

Question 10

Name the cell in the testis that produce androgens

Answer 10

Leydig cells

Question 11

Name the functions of the testis

Answer 11

Storage and production of sperm

Androgen production

Question 12

Name the functions of the epididyimus

Answer 12

Transport of sperm
Maturation of sperm
Concentration of sperm
Secretion of nutrients 
Storage of sperm

Question 13

Name the function of the Vas Deferens

Answer 13

Transport of sperm to urethra

Question 14

Name the function of the accessory gland

Answer 14

Production of the seminal fluid, makes up 95% of the semen

Question 15

Fully name the tissue that lines the teat canal and purpose of it.

Answer 15

Keratinised stratified squamous epithelium

Acts as plug to prevent entry of bacteria or fungi in the teat canal

Question 16

What is the function of the supramammary lymph nodes

Answer 16

Protection against infections

Drains the intersitial fluids

Question 17

Whats another name for the ‘milk vein’?

Answer 17

Caudal superficial epigastric

Subcutaneous abdominal vein

Question 18

What is the general name of the secretory tissue of the udder

Answer 18

Parenchyma

Question 19

How long is the bovine teat canal

Answer 19

7-10mm

Question 20

Whats the name of the hormone that stimulates the milk synthesis?

Answer 20

Prolactin

Question 21

What is the name of the hormone that is secreted by the posterior pituitary gland?

Answer 21

Oxytocin

Question 22

Whats another name of a Leydig cell?

Answer 22

Interstitial cells

Question 23

The production of sperm in the seminferous tubules is controlled by what time of cell

Answer 23

Sertoli cells

Question 24

What temperature range do most mammals sperm develop best?

Answer 24

34-35 degrees