Unit 4

Question 1

Where is the thirst center found?

Answer 1

Hypothalamus

Question 2

The Proximal convoluted tubule reabsorbs ____________ of the substances and reabsorbs ________________% of ___________________

Answer 2

1) most substances
2) 65%
3) filtered water

Question 3

T/F: The filtration membrane consists of glomerular and cytocides

Answer 3

False; glomerular and podocytes

Question 4

results from diluted body fluids and decreased osmolarity of interstitial fluid is referred to as___________________

Answer 4

Water intoxication

Question 5

What are the most abundant ions in the extracellular fluids

Answer 5

sodium (Na+) Cation
chloride (Cl-) Anion

Question 6

Inadequate Carbon dioxide (CO2) exhalation results in…

Answer 6

lowered blood pH

Question 7

The function of Electrolytes is to
1) control _______________
2) maintain _____________
3) carry _________________

Answer 7

1) control osmosis
2) maintain acid base balance
3) carry electrical currents

Question 8

How does Angiotensin II affects the kidney?

Answer 8

decreasing urine volume and stimulating aldosterone release but does not increase GFR

Question 9

Increased hydrogen ion secretion results in…

Answer 9

increased blood pH

Question 10

1) filtered substance returns to the blood stream is classified as __________________

2) blood to filtration is classified as ____________________

Answer 10

1) Reabsorption
2) Secretion

Question 11

What is released when blood volume increases________________

Answer 11

ANP

Question 12

T/F: Buffer systems include strong acid and its salt

Answer 12

False; weak acid and its salt

Question 13

PTH, Calcitriol and Calcitonin regulate _____________levels in the _________________

Answer 13

1) Calcium
2) blood

Question 14

What does aldosterone promote and regulate?

Answer 14

Aldosterone promotes sodium (Na+) reabsorption
Aldosterone regulates sodium levels in blood

Question 15

Increased sodium (Na+) levels in urine is classified as

Answer 15

Natriuresis

Question 16

Acidosis occurs when blood pH falls below ____________

Answer 16

7.35

Question 17

T/F: Urinalysis is the study of the physical, chemical and microscopic properties of urine

Answer 17

True

Question 18

What is the function of the Renal Corpuscle

Answer 18

filters blood in the Nephron

Question 19

The urine is composed of ____________% of ______________

Answer 19

1) 95% of water

Question 20

The posterior pituitary releases ________________ and _______________

Answer 20

1) oxytocin
2) ADH

Question 21

T/F: The somatotropin stimulates body growth

Answer 21

True

Question 22

What does the Prolactin stimulate?

Answer 22

milk production

Question 23

What does the ACTH stimulate

Answer 23

the adrenal cortex to release cortisol

Question 24

Hypothalamus controls ______________release from the _______________

Answer 24

1) hormone
2) anterior pituitary

Question 25

Luteinizing hormone (LH) stimulates ________________ to secrete __________________ and ____________________

Answer 25

1) gonads 2) progesterone 3) testosterone

Question 26

What does the ADH release varies with?

Answer 26

The ADH varies with blood osmotic pressure

Question 27

The Calcitonin _______________ the action of the ________________

Answer 27

1) opposes 2) parathyroid hormone

Question 28

What lowers the blood glucose levels?

Answer 28

Insulin

Question 29

The Pineal gland produces __________________

Answer 29

melatonin

Question 30

T/F: The anterior pituitary secretes hGH, TSH, FSH

Answer 30

True

Question 31

1) The _________________ regulates blood calcium levels 2) The __________________ regulates basal metabolic rate (BMR)

Answer 31

1) Parathyroid gland 2) Thyroid gland

Question 32

What secretes steroid hormones in response to long-term stress

Answer 32

Adrenal cortex

Question 33

What produces melatonin?

Answer 33

Pineal Gland

Question 34

What produces aldosterone?

Answer 34

Adrenal Cortex