Learning Medicine and Introductory

Question 1

Define homeostasis

Answer 1

Maintenance of a stable equilibrium, especially through physiological processes

Question 2

Define negative feedback

Answer 2

Output reduces the original stimulus

Question 3

Define positive feedback

Answer 3

Output enhances the original stimulus

Question 4

Where are the receptors for body temperature?

Answer 4

Skin

Hypothalamus

Question 5

Where are the control centres for temperature?

Answer 5

Hypothalamus

Anterior pituitary gland

Question 6

Name 4 effectors that can increase body temperature

Answer 6

Vasoconstriction
Adrenal medulla - hormone secretion
Skeletal muscles - shivering
Thyroid gland - release of thyroid hormones to increase metabolism

Question 7

Are protons -ve or +ve?

Answer 7

Positive

Question 8

Are electrons -ve or +ve?

Answer 8

Negative

Question 9

What are the five human tissues types?

Answer 9

Epithelia
Muscle
Connective tissue
Blood
Nervous tissue

Question 10

What are the 3 types of muscle?

Answer 10

Skeletal
Cardiac
Visceral/smooth

Question 11

What colour does gram negative bacteria stain?

Why?

Answer 11

Pink

Thin cell wall, loses violet stain

Question 12

What colour does gram positive bacteria stain?

Why

Answer 12

Violet

Thick peptidoglycan cell wall retains violet dye