Physiological homeostasis

Question 1

What is purpose of homeostasis in short term?

Answer 1

• Immediate survival

Question 2

What does the size and frequency of fluctuations depend on?

Answer 2

The variable

Question 3

Name 3 homeostatic control mechanisms

Answer 3

-ve feedback, feedforward, +ve feedback

Question 4

Where are neuronal integrating centres for physiological control located?

Answer 4

midbrain and brain-stem

Question 5

Which NS do many neuronal negative feedback reflex arcs involve?

Answer 5

ANS

Question 6

Which part of brain controls temp regulation?

Answer 6

Hypothalamus

Question 7

Which part of brain has control centres for cardiovascular and respiratory function?

Answer 7

Medulla oblongata

Question 8

Which NS(s) is SA node innervated by?

Answer 8

symp and para

Question 9

Which NS is adrenal gland and kidney innervated by in terms of blood pressure and vol?

Answer 9

Symp

Question 10

What is the neurotransmitter for parasymp NS?

Answer 10

Acetylcholine

Question 11

What is the neurotransmitter for symp NS?

Answer 11

Noradrenaline

Question 12

What do endocrine glands/tissues secrete?

Answer 12

Hormones

Question 13

Where are hormones released into?

Answer 13

Bloodstream

Question 14

Which parts of the brain are endo and neuronendo?

Answer 14

Neuroendo: hypo, post. Pit Endo: ant. pit

Question 15

What are the hypo inhibitory releasing hormones?

Answer 15

somatostatin, dopamine

Question 16

What are the post. pit hormones?

Answer 16

Oxytocin, ADH

Question 17

What are the peptide hormones?

Answer 17

ADH, oxytocin

Question 18

What are the polypeptide hormones?

Answer 18

Growth hormone, insulin

Question 19

Where do local homeostatic responses occur?

Answer 19

At tissue/celullar level

Question 20

What are feed-forward control mech normally?

Answer 20

Neuronal