Physiology MCQ1

Question 1

When were chickens domesticated?

Answer 1

5000 years ago

Question 2

Who first came up with the concept of ‘balance’ in physiology?

Answer 2

Hippocrates

Question 3

On average, how many lactations does a cow last in an Irish dairy herd?

Answer 3

4

Question 4

Growth rates in poultry have increased by what %?

Answer 4

400%

Question 5

Sudden death syndrome in poultry is due to insufficiency in what organs?

Answer 5

Heart

Question 6

The line at which the physiological reserve is exceeded, is called what?

Answer 6

The physiological limit

Question 7

A self regulating process by which biological systems maintain stability while adjusting to changing external environments is referred to as what?

Answer 7

Homeostasis

Question 8

What portal system connects the Hypothalamus to the pituitary?

Answer 8

Hypophyseal

Question 9

Which hormones are secreted from the posterior pituitary?

Answer 9

Oxytocin and ADH

Question 10

The pineal gland secretes what?

Answer 10

Melatonin

Question 11

What gland secretes insulin?

Answer 11

Pancreas

Question 12

Which of the following are exocrine glands

Answer 12

Salivary & Mammary

Question 13

What type of fat is involved in thermogenesis?

Answer 13

Brown

Question 14

Cholesterol is used to make what type of hormone?

Answer 14

Steroid

Question 15

Sugars are carbohydrates and are used to make what type of proteins?

Answer 15

Glycoproteins

Question 16

Which type of hormone are bound to carrier proteins (chaperones)?

Answer 16

Steroid

Question 17

What type of secretion pattern does Melatonin display?

Answer 17

Circadian

Question 18

Which of the following is not part of the somatotrophic axis?

Answer 18

Testosterone

Question 19

Give an example of a steroid/peptide hormone

Answer 19

Cortisol

Question 20

A self-regulating process by which biological systems maintain stability while adjusting to changing external environments

Answer 20

Homeostasis

Question 21

The organ with greatest blood flow in mammals

Answer 21

Kidney

Question 22

The selection pressure exerted by Man

Answer 22

Artificial

Question 23

Largest organ in avian species

Answer 23

Heart

Question 24

The function of adipose tissue to generate heat

Answer 24

Thermogenesis

Question 25

The nucleus which regulates the circadian clock

Answer 25

Suprachiasmatic

Question 26

The tissue or organ of greatest weight as a % of body weight in cattle

Answer 26

Adipose

Question 27

The capacity of an animal to be minimally affected by disturbances or to rapidly return to the state pertained before exposure to a disturbance

Answer 27

Resilience

Question 28

The geographical location where cattle were domesticated

Answer 28

Middle East

Question 29

The selection pressure exerted by Nature

Answer 29

Natural

Question 30

The organ with greatest blood flow in cattle

Answer 30

Liver

Question 31

The hormone which controls milk ejection

Answer 31

Oxytocin

Question 32

The maintenance of lactation

Answer 32

Galactopoiesis

Question 33

The branching of ducts which accompanies mammary development

Answer 33

Morphogenesis

Question 34

The canal through which vessels from the abdomen enter the mammary gland

Answer 34

Inguinal

Question 35

The system that collects the tissue fluid for recirculation and also contains lymphocytes

Answer 35

Lymph

Question 36

The original cell from which everything else develops

Answer 36

Stem

Question 37

The name of the plates which provide lateral support for the mammary gland

Answer 37

Lamellar

Question 38

The cell responsible for milk secretion

Answer 38

Myoepithelial

Question 39

The generation of mammary tissue

Answer 39

Mamogenesis

Question 40

The term for the same animal concurrently producing milk of different composition

Answer 40

Asynchronous

Question 41

The swelling of the mammary tissue in latter stages of pregnancy

Answer 41

Odema

Question 42

The name of the vessel curves (or flexures) which allow mammary gland expansion

Answer 42

Sigmoid

Question 43

Describing growth that proceeds at the same rate of the body

Answer 43

Isometric

Question 44

The synthesis and secretion of milk

Answer 44

Lactogenesis

Question 45

Yellow elastic connective tissue which forms the suspensory mammary gland ligaments

Answer 45

Median

Question 46

The term that describes a loss in mammary gland size during involution

Answer 46

Regression

Question 47

The species identified by the ability to lactate

Answer 47

Mammalia

Question 48

The part of the mammary gland formed from ductal and alveolar cells

Answer 48

Luminal

Question 49

The trait for which the genes have been conserved across evolution

Answer 49

Milk fat

Question 50

The lineage along which the ability to lactate evolved

Answer 50

Synapsid

Question 51

The name for placental mammals

Answer 51

Eutherians

Question 52

The arteries of the mammary gland

Answer 52

Pudendal

Question 53

Describes growth which is accelerated compared to the rest of the body

Answer 53

Allometric

Question 54

The pressure which controls water transport into mammary gland

Answer 54

Osmotic

Question 55

The regression of the mammary gland at the end of lactation

Answer 55

Involution