1016MSC Study Guide - Final Guide: Triiodothyronine, Adrenal Medulla, Hypercalcaemia

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27 Jun 2018

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Review Questions and concept checks

Endocrine system

Topic 5.1-5.3

You have consumed a six-pack of beer in the course of an evening. The intake of alcohol

can decrease the release of which hormone? (a) ACTH (b) ADH (c) insulin (d) TSH!

"ADH!

Explain the term “tropic hormone”.!

"control development, maintenance and secretion from a variety of glands around

the body

List the tropic hormones released from the hypothalamus.!

"TSH, ACTH, FSH, LH!

What is the hypophyseal portal system and what is its signiﬁcance?!

"vascular connection between hypothalamus and anterior pituitary gland!

Name the connection between the hypothalamus and the posterior pituitary gland.!

"hypophyseal tract. Hormones OT and ADH are transported via this system into

posterior pituitary to be moved into the body!

Suckling is an important stimulus for release of: (a) oxytocin (b) ADH (c) oestrogen; (d)

FSH;!

"Oxytocin!

#Which hormone causes contraction of smooth muscle surrounding milk glands of the

mammary gland? (a) oxytocin (c) TSH (d) GH (e) prolactin!

"Prolactin!

Topic 5.1 concept check

Endocrine system inﬂuences metabolic activity via hormones (chemical messengers)

secreted into extracellular ﬂuid!

Responses take much longer (several seconds to days) than neural responses (within

milliseconds), with longer lasting responses!

Endocrine glands: small organs with powerful inﬂuence: pituitary, pineal, thyroid,

parathyroid and adrenal glands also hypothalamus (neuroendocrine), gonads, placenta,

pancreas (contain endocrine tissue)!

Exocrine glands – ducted system carrying non-hormonal substances (sweat, saliva)!

Endocrine – ductless system where hormones delivered into surrounding tissue ﬂuid, rich

vascular and lymphatic drainage!

Humoral, neural or hormonal stimuli trigger endocrine glands to manufacture and secrete

hormones!

Pituitary gland attached inferiorly to hypothalamus by infundibulum sits in the#sella turcica

of sphenoid bone!

Neurohypophysis (posterior pituitary + infundibulum) – made of neural tissue and stores

hormones!

Adenohypophysis (anterior pituitary) – glandular tissue, manufactures and releases

hormones!

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Document Summary

You have consumed a six-pack of beer in the course of an evening. The intake of alcohol can decrease the release of which hormone? (a) acth (b) adh (c) insulin (d) tsh. Explain the term tropic hormone . the body control development, maintenance and secretion from a variety of glands around. List the tropic hormones released from the hypothalamus. What is the hypophyseal portal system and what is its signi cance? vascular connection between hypothalamus and anterior pituitary gland. Name the connection between the hypothalamus and the posterior pituitary gland. posterior pituitary to be moved into the body hypophyseal tract. Hormones ot and adh are transported via this system into. Suckling is an important stimulus for release of: (a) oxytocin (b) adh (c) oestrogen; (d) Which hormone causes contraction of smooth muscle surrounding milk glands of the mammary gland? (a) oxytocin (c) tsh (d) gh (e) prolactin.

Related Questions

composed of two parts; mostly white matter

cerebrum
diencephalon
cerebellum
brain stem

People who are under constant stress have a tendency to gainweight, especially in the midsection, even if they do not overeat.This is because the hypothalamus responds to the stress bystimulating the

posterior pituitary.
adrenal cortex.
thyroid.
adrenal medulla.
pancreas.

The arrow shows the direction of the nerve impulse in a neuron.Part X would represent a(n) ________.

axon
dendrite
cell body
myelin sheath
axon terminal

A nerve impulse travels down a myelinated axon by

repolarization.
saltatory conduction.
simple diffusion.
integration.
summation.

Which of these does not belong to the limbic system?

thalamus
amygdala
hypothalamus
hippocampus
cerebellum

Contraction of the uterus during childbirth is stimulated by

prolactin.
luteinizing hormone (LH).
oxytocin.
glucagon.
parathyroid hormone (PTH).

If an individual's pituitary gland does not produce adequateadrenocorticotropic hormone (ACTH), then _____ will result.

Cushing syndrome
exopthalmos
Graves disease
Addison disease
diabetes mellitus

Which two anterior pituitary hormones do not target other endocrineglands?
prolactin (PRL) and growth hormone (GH)
oxytocin and prolactin (PRL)
adrenocorticotropic hormone (ACTH) and growth hormone (GH)
luteinizing hormone (LH) and adrenocorticotropic hormone(ACTH)
antidiuretic hormone (ADH) and oxytocin

Match each hormone with its corresponding action.

ACTH, ADH, FSH, STH (GH), LH, MSH, OCT, PRL, TSH

A. Stimulates egg and sperm formation in ovaries and testes.

B. Targets pigmented cells in skin and other surface coverings; induces color changes in response to external stimuli and affects some behaviors.

C. Stimulates and sustains milk production in mammary glands.

D. Stimulates progesterone secretion, ovulation, and corpus luteum formation in females; promotes testosterone secretion and sperm release in males.

E. Induces uterine contractions and milk movement into secretory ducts of the mammary glands.

F. Stimulates release of thyroid hormones from the thyroid gland.

G. Acts on kidneys to conserve water required in control of extracellular fluid volume.

H. Stimulates release of adrenal steroid hormones from the adrenal cortex.

I. Promotes growth in young; induces protein synthesis and cell division; has roles in adult glucose and protein metabolism.

taupealpaca895

1) A drop of urine would follow this path

a) renal pyramid/major calyx/minor calyx/renal pelvis/ureter

b) minor calyx/major calyx/renal pyramid/renal pelvis/ureter

c) renal pelvis/minor calyx/major calyx/renal pyramid/ureter

d) renal pyramid/minor calyx/major calyx/renal pelvis/ureter

2) The production of filtrate starts at

a) Loop of Henle

b) capsular space

c) distal convoluted tubule

d) proximal convoluted tubule

3) Major reabsorption of water happens by ____at the _____

a) contransport, distal convoluted tubules

b) Cl- shift, nephron loop

c) countercurrent, nephron loop

d) countercurrent, ureter

4) Angiotensin II causes production of ____to increase Na + reabsorption in the _________

a) renin; collecting duct

b) aldosterone; PCT

c) ADH; nephron loop

d) aldosterone; collecting duct

5) Most of the reabsorbed compounds from the filtrate end up in the

a) peritubular capillary

b) urine

c) nephron loop

d) DCT

6) Reabsorption of urea happens by

a) transcellular movement

b) by paracellular movement

c) by cotransport with glucose

d) by HCO3- movement

7) Transport Maximum, in urinary system terms, refers to

a) proteins performing âtransportâ out of the filtrate at maximum rate

b) the reason why a diabetic produces large volumes of diluted urine

c) excess filtrate components being urinated out of the body

d) All choices are correct

8) Urine does not drop below pH 4.5 because

a) proteins that move H+ into filtrate stop working when too much H+ builds up in filtrate

b) proteins in urine neutralize acid

c) H+ are always buffered

d) the buffering system in urine does not run out

9) Hyperkalemia will

a) activate adrenal cells to secrete aldosterone

b) can stop the heart

c) No choices are correct

d) cause reduced excitability of neurons

e) All choices are correct

10)In your body, chloride (Cl-) can be found in its highest concentration in

a) extracellular fluid

b) intracellular fluid

c) Neither choice is correct

11) Diuretic abuse leads to

a) All choices are correct

b) two choices are correct

c) No choice is correct

d) dehydration

e) athletes being accused of doping

f) hypotonic hydration

12) Long diffusion distance, low blood pressure, and impaired circulation are the result of

a) hypernatremia

b) edema

c) hyperkalemia

d) water toxicity

13) In males FSH is under feedback control by _____ and is down regulated when _________reaches high concentrations

a) inhibin, testosterone/sperm #s

b) testosterone, inhibin/sustentocyte #s

c) ADH, inhibin/sustentocyte #s

d) LH, testosterone/sperm #s

14) Testosterone production is done by ____-cells

a) posterior pituitary

b ) interstitial endocrine

c) anterior pituitary

d) sustentocytes

15) Upon _____of estrogen/progesterone, the ____phase of the uterine cycle begins

a) increase; menstrual

b) decrease; menstrual

c) increase; proliferative

d) decrease; secretory

16) Progesterone

a) All choices are correct

b) is low in the luteal phase

c) No choices are correct

d) raises in the follicular phase

e) is high along with estrogen during the follicular phase

17) Which nephron is most responsible for urine concentration?

a) cortical nephrons

b) Juxtamedullary nephrons

c) Neither

carminesalmon877

1016MSC Study Guide - Final Guide: Triiodothyronine, Adrenal Medulla, Hypercalcaemia

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